diff --git a/web/app/components/workflow/__tests__/edge-contextmenu.spec.tsx b/web/app/components/workflow/__tests__/edge-contextmenu.spec.tsx
new file mode 100644
index 0000000000..7156495a59
--- /dev/null
+++ b/web/app/components/workflow/__tests__/edge-contextmenu.spec.tsx
@@ -0,0 +1,410 @@
+import type { Edge, Node } from '../types'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { useEffect } from 'react'
+import { useEdges, useNodes, useStoreApi } from 'reactflow'
+import { createEdge, createNode } from '../__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '../__tests__/workflow-test-env'
+import EdgeContextmenu from '../edge-contextmenu'
+import { useEdgesInteractions } from '../hooks/use-edges-interactions'
+
+const mockSaveStateToHistory = vi.fn()
+
+vi.mock('../hooks/use-workflow-history', () => ({
+  useWorkflowHistory: () => ({ saveStateToHistory: mockSaveStateToHistory }),
+  WorkflowHistoryEvent: {
+    EdgeDelete: 'EdgeDelete',
+    EdgeDeleteByDeleteBranch: 'EdgeDeleteByDeleteBranch',
+    EdgeSourceHandleChange: 'EdgeSourceHandleChange',
+  },
+}))
+
+vi.mock('../hooks/use-workflow', () => ({
+  useNodesReadOnly: () => ({
+    getNodesReadOnly: () => false,
+  }),
+}))
+
+vi.mock('../utils', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../utils')>()
+
+  return {
+    ...actual,
+    getNodesConnectedSourceOrTargetHandleIdsMap: vi.fn(() => ({})),
+  }
+})
+
+vi.mock('../hooks', async () => {
+  const { useEdgesInteractions } = await import('../hooks/use-edges-interactions')
+  const { usePanelInteractions } = await import('../hooks/use-panel-interactions')
+
+  return {
+    useEdgesInteractions,
+    usePanelInteractions,
+  }
+})
+
+type EdgeRuntimeState = {
+  _hovering?: boolean
+  _isBundled?: boolean
+}
+
+type NodeRuntimeState = {
+  selected?: boolean
+  _isBundled?: boolean
+}
+
+const getEdgeRuntimeState = (edge?: Edge): EdgeRuntimeState =>
+  (edge?.data ?? {}) as EdgeRuntimeState
+
+const getNodeRuntimeState = (node?: Node): NodeRuntimeState =>
+  (node?.data ?? {}) as NodeRuntimeState
+
+function createFlowNodes() {
+  return [
+    createNode({ id: 'n1' }),
+    createNode({ id: 'n2', position: { x: 100, y: 0 } }),
+  ]
+}
+
+function createFlowEdges() {
+  return [
+    createEdge({
+      id: 'e1',
+      source: 'n1',
+      target: 'n2',
+      sourceHandle: 'branch-a',
+      data: { _hovering: false },
+      selected: true,
+    }),
+    createEdge({
+      id: 'e2',
+      source: 'n1',
+      target: 'n2',
+      sourceHandle: 'branch-b',
+      data: { _hovering: false },
+    }),
+  ]
+}
+
+let latestNodes: Node[] = []
+let latestEdges: Edge[] = []
+
+const RuntimeProbe = () => {
+  latestNodes = useNodes() as Node[]
+  latestEdges = useEdges() as Edge[]
+
+  return null
+}
+
+const hooksStoreProps = {
+  doSyncWorkflowDraft: vi.fn().mockResolvedValue(undefined),
+}
+
+const EdgeMenuHarness = () => {
+  const { handleEdgeContextMenu, handleEdgeDelete } = useEdgesInteractions()
+  const edges = useEdges() as Edge[]
+  const reactFlowStore = useStoreApi()
+
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key !== 'Delete' && e.key !== 'Backspace')
+        return
+
+      e.preventDefault()
+      handleEdgeDelete()
+    }
+
+    document.addEventListener('keydown', handleKeyDown)
+    return () => {
+      document.removeEventListener('keydown', handleKeyDown)
+    }
+  }, [handleEdgeDelete])
+
+  return (
+    <div>
+      <RuntimeProbe />
+      <button
+        type="button"
+        aria-label="Right-click edge e1"
+        onContextMenu={e => handleEdgeContextMenu(e as never, edges.find(edge => edge.id === 'e1') as never)}
+      >
+        edge-e1
+      </button>
+      <button
+        type="button"
+        aria-label="Right-click edge e2"
+        onContextMenu={e => handleEdgeContextMenu(e as never, edges.find(edge => edge.id === 'e2') as never)}
+      >
+        edge-e2
+      </button>
+      <button
+        type="button"
+        aria-label="Remove edge e1"
+        onClick={() => {
+          const { edges, setEdges } = reactFlowStore.getState()
+          setEdges(edges.filter(edge => edge.id !== 'e1'))
+        }}
+      >
+        remove-e1
+      </button>
+      <EdgeContextmenu />
+    </div>
+  )
+}
+
+function renderEdgeMenu(options?: {
+  nodes?: Node[]
+  edges?: Edge[]
+  initialStoreState?: Record<string, unknown>
+}) {
+  const { nodes = createFlowNodes(), edges = createFlowEdges(), initialStoreState } = options ?? {}
+
+  return renderWorkflowFlowComponent(<EdgeMenuHarness />, {
+    nodes,
+    edges,
+    initialStoreState,
+    hooksStoreProps,
+    reactFlowProps: { fitView: false },
+  })
+}
+
+describe('EdgeContextmenu', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    latestNodes = []
+    latestEdges = []
+  })
+
+  it('should not render when edgeMenu is absent', () => {
+    renderWorkflowFlowComponent(<EdgeContextmenu />, {
+      nodes: createFlowNodes(),
+      edges: createFlowEdges(),
+      hooksStoreProps,
+      reactFlowProps: { fitView: false },
+    })
+
+    expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+  })
+
+  it('should delete the menu edge and close the menu when another edge is selected', async () => {
+    const user = userEvent.setup()
+    const { store } = renderEdgeMenu({
+      edges: [
+        createEdge({
+          id: 'e1',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-a',
+          selected: true,
+          data: { _hovering: false },
+        }),
+        createEdge({
+          id: 'e2',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-b',
+          selected: false,
+          data: { _hovering: false },
+        }),
+      ],
+      initialStoreState: {
+        edgeMenu: {
+          clientX: 320,
+          clientY: 180,
+          edgeId: 'e2',
+        },
+      },
+    })
+
+    const deleteAction = await screen.findByRole('menuitem', { name: /common:operation\.delete/i })
+    expect(screen.getByText(/^del$/i)).toBeInTheDocument()
+
+    await user.click(deleteAction)
+
+    await waitFor(() => {
+      expect(latestEdges).toHaveLength(1)
+      expect(latestEdges[0].id).toBe('e1')
+      expect(latestEdges[0].selected).toBe(true)
+      expect(store.getState().edgeMenu).toBeUndefined()
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+    })
+    expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
+  })
+
+  it('should not render the menu when the referenced edge no longer exists', () => {
+    renderWorkflowFlowComponent(<EdgeContextmenu />, {
+      nodes: createFlowNodes(),
+      edges: createFlowEdges(),
+      initialStoreState: {
+        edgeMenu: {
+          clientX: 320,
+          clientY: 180,
+          edgeId: 'missing-edge',
+        },
+      },
+      hooksStoreProps,
+      reactFlowProps: { fitView: false },
+    })
+
+    expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+  })
+
+  it('should open the edge menu at the right-click position', async () => {
+    const fromRectSpy = vi.spyOn(DOMRect, 'fromRect')
+
+    renderEdgeMenu()
+
+    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
+      clientX: 320,
+      clientY: 180,
+    })
+
+    expect(await screen.findByRole('menu')).toBeInTheDocument()
+    expect(screen.getByRole('menuitem', { name: /common:operation\.delete/i })).toBeInTheDocument()
+    expect(fromRectSpy).toHaveBeenLastCalledWith(expect.objectContaining({
+      x: 320,
+      y: 180,
+      width: 0,
+      height: 0,
+    }))
+  })
+
+  it('should delete the right-clicked edge and close the menu when delete is clicked', async () => {
+    const user = userEvent.setup()
+
+    renderEdgeMenu()
+
+    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
+      clientX: 320,
+      clientY: 180,
+    })
+
+    await user.click(await screen.findByRole('menuitem', { name: /common:operation\.delete/i }))
+
+    await waitFor(() => {
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+      expect(latestEdges.map(edge => edge.id)).toEqual(['e1'])
+    })
+    expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
+  })
+
+  it.each([
+    ['Delete', 'Delete'],
+    ['Backspace', 'Backspace'],
+  ])('should delete the right-clicked edge with %s after switching from a selected node', async (_, key) => {
+    renderEdgeMenu({
+      nodes: [
+        createNode({
+          id: 'n1',
+          selected: true,
+          data: { selected: true, _isBundled: true },
+        }),
+        createNode({
+          id: 'n2',
+          position: { x: 100, y: 0 },
+        }),
+      ],
+    })
+
+    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
+      clientX: 240,
+      clientY: 120,
+    })
+
+    expect(await screen.findByRole('menu')).toBeInTheDocument()
+
+    fireEvent.keyDown(document.body, { key })
+
+    await waitFor(() => {
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+      expect(latestEdges.map(edge => edge.id)).toEqual(['e1'])
+      expect(latestNodes.map(node => node.id)).toEqual(['n1', 'n2'])
+      expect(latestNodes.every(node => !node.selected && !getNodeRuntimeState(node).selected)).toBe(true)
+    })
+  })
+
+  it('should keep bundled multi-selection nodes intact when delete runs after right-clicking an edge', async () => {
+    renderEdgeMenu({
+      nodes: [
+        createNode({
+          id: 'n1',
+          selected: true,
+          data: { selected: true, _isBundled: true },
+        }),
+        createNode({
+          id: 'n2',
+          position: { x: 100, y: 0 },
+          selected: true,
+          data: { selected: true, _isBundled: true },
+        }),
+      ],
+    })
+
+    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e1' }), {
+      clientX: 200,
+      clientY: 100,
+    })
+
+    expect(await screen.findByRole('menu')).toBeInTheDocument()
+
+    fireEvent.keyDown(document.body, { key: 'Delete' })
+
+    await waitFor(() => {
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+      expect(latestEdges.map(edge => edge.id)).toEqual(['e2'])
+      expect(latestNodes).toHaveLength(2)
+      expect(latestNodes.every(node =>
+        !node.selected
+        && !getNodeRuntimeState(node).selected
+        && !getNodeRuntimeState(node)._isBundled,
+      )).toBe(true)
+    })
+  })
+
+  it('should retarget the menu and selected edge when right-clicking a different edge', async () => {
+    const fromRectSpy = vi.spyOn(DOMRect, 'fromRect')
+
+    renderEdgeMenu()
+    const edgeOneButton = screen.getByLabelText('Right-click edge e1')
+    const edgeTwoButton = screen.getByLabelText('Right-click edge e2')
+
+    fireEvent.contextMenu(edgeOneButton, {
+      clientX: 80,
+      clientY: 60,
+    })
+    expect(await screen.findByRole('menu')).toBeInTheDocument()
+
+    fireEvent.contextMenu(edgeTwoButton, {
+      clientX: 360,
+      clientY: 240,
+    })
+
+    await waitFor(() => {
+      expect(screen.getAllByRole('menu')).toHaveLength(1)
+      expect(fromRectSpy).toHaveBeenLastCalledWith(expect.objectContaining({
+        x: 360,
+        y: 240,
+      }))
+      expect(latestEdges.find(edge => edge.id === 'e1')?.selected).toBe(false)
+      expect(latestEdges.find(edge => edge.id === 'e2')?.selected).toBe(true)
+      expect(latestEdges.every(edge => !getEdgeRuntimeState(edge)._isBundled)).toBe(true)
+    })
+  })
+
+  it('should hide the menu when the target edge disappears after opening it', async () => {
+    const { container } = renderEdgeMenu()
+
+    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e1' }), {
+      clientX: 160,
+      clientY: 100,
+    })
+    expect(await screen.findByRole('menu')).toBeInTheDocument()
+
+    fireEvent.click(container.querySelector('button[aria-label="Remove edge e1"]') as HTMLButtonElement)
+
+    await waitFor(() => {
+      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/__tests__/features.spec.tsx b/web/app/components/workflow/__tests__/features.spec.tsx
index d7e2cb13ae..8be40faea9 100644
--- a/web/app/components/workflow/__tests__/features.spec.tsx
+++ b/web/app/components/workflow/__tests__/features.spec.tsx
@@ -2,11 +2,11 @@ import type { InputVar } from '../types'
 import type { PromptVariable } from '@/models/debug'
 import { screen } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
-import ReactFlow, { ReactFlowProvider, useNodes } from 'reactflow'
+import { useNodes } from 'reactflow'
 import Features from '../features'
 import { InputVarType } from '../types'
 import { createStartNode } from './fixtures'
-import { renderWorkflowComponent } from './workflow-test-env'
+import { renderWorkflowFlowComponent } from './workflow-test-env'
 
 const mockHandleSyncWorkflowDraft = vi.fn()
 const mockHandleAddVariable = vi.fn()
@@ -112,17 +112,15 @@ const DelayedFeatures = () => {
   return <Features />
 }
 
-const renderFeatures = (options?: Parameters<typeof renderWorkflowComponent>[1]) => {
-  return renderWorkflowComponent(
-    <div style={{ width: 800, height: 600 }}>
-      <ReactFlowProvider>
-        <ReactFlow nodes={[startNode]} edges={[]} fitView />
-        <DelayedFeatures />
-      </ReactFlowProvider>
-    </div>,
-    options,
+const renderFeatures = (options?: Omit<Parameters<typeof renderWorkflowFlowComponent>[1], 'nodes' | 'edges'>) =>
+  renderWorkflowFlowComponent(
+    <DelayedFeatures />,
+    {
+      nodes: [startNode],
+      edges: [],
+      ...options,
+    },
   )
-}
 
 describe('Features', () => {
   beforeEach(() => {
diff --git a/web/app/components/workflow/__tests__/fixtures.ts b/web/app/components/workflow/__tests__/fixtures.ts
index ebc1d0d300..a340e38abb 100644
--- a/web/app/components/workflow/__tests__/fixtures.ts
+++ b/web/app/components/workflow/__tests__/fixtures.ts
@@ -42,6 +42,13 @@ export function createStartNode(overrides: Omit<Partial<Node>, 'data'> & { data?
   })
 }
 
+export function createNodeDataFactory<T extends CommonNodeType & Record<string, unknown>>(defaults: T) {
+  return (overrides: Partial<T> = {}): T => ({
+    ...defaults,
+    ...overrides,
+  })
+}
+
 export function createTriggerNode(
   triggerType: BlockEnum.TriggerSchedule | BlockEnum.TriggerWebhook | BlockEnum.TriggerPlugin = BlockEnum.TriggerWebhook,
   overrides: Omit<Partial<Node>, 'data'> & { data?: Partial<CommonNodeType> & Record<string, unknown> } = {},
diff --git a/web/app/components/workflow/__tests__/i18n.ts b/web/app/components/workflow/__tests__/i18n.ts
new file mode 100644
index 0000000000..7d04667a32
--- /dev/null
+++ b/web/app/components/workflow/__tests__/i18n.ts
@@ -0,0 +1,9 @@
+import { vi } from 'vitest'
+
+export function resolveDocLink(path: string, baseUrl = 'https://docs.example.com') {
+  return `${baseUrl}${path}`
+}
+
+export function createDocLinkMock(baseUrl = 'https://docs.example.com') {
+  return vi.fn((path: string) => resolveDocLink(path, baseUrl))
+}
diff --git a/web/app/components/workflow/__tests__/model-provider-fixtures.spec.ts b/web/app/components/workflow/__tests__/model-provider-fixtures.spec.ts
new file mode 100644
index 0000000000..4c728cccf3
--- /dev/null
+++ b/web/app/components/workflow/__tests__/model-provider-fixtures.spec.ts
@@ -0,0 +1,179 @@
+import {
+  ConfigurationMethodEnum,
+  CurrentSystemQuotaTypeEnum,
+  CustomConfigurationStatusEnum,
+  ModelStatusEnum,
+  ModelTypeEnum,
+  PreferredProviderTypeEnum,
+} from '@/app/components/header/account-setting/model-provider-page/declarations'
+import {
+  createCredentialState,
+  createDefaultModel,
+  createModel,
+  createModelItem,
+  createProviderMeta,
+} from './model-provider-fixtures'
+
+describe('model-provider-fixtures', () => {
+  describe('createModelItem', () => {
+    it('should return the default text embedding model item', () => {
+      expect(createModelItem()).toEqual({
+        model: 'text-embedding-3-large',
+        label: { en_US: 'Text Embedding 3 Large', zh_Hans: 'Text Embedding 3 Large' },
+        model_type: ModelTypeEnum.textEmbedding,
+        fetch_from: ConfigurationMethodEnum.predefinedModel,
+        status: ModelStatusEnum.active,
+        model_properties: {},
+        load_balancing_enabled: false,
+      })
+    })
+
+    it('should allow overriding the default model item fields', () => {
+      expect(createModelItem({
+        model: 'bge-large',
+        status: ModelStatusEnum.disabled,
+        load_balancing_enabled: true,
+      })).toEqual(expect.objectContaining({
+        model: 'bge-large',
+        status: ModelStatusEnum.disabled,
+        load_balancing_enabled: true,
+      }))
+    })
+  })
+
+  describe('createModel', () => {
+    it('should build an active provider model with one default model item', () => {
+      const result = createModel()
+
+      expect(result.provider).toBe('openai')
+      expect(result.status).toBe(ModelStatusEnum.active)
+      expect(result.models).toHaveLength(1)
+      expect(result.models[0]).toEqual(createModelItem())
+    })
+
+    it('should use override values for provider metadata and model list', () => {
+      const customModelItem = createModelItem({
+        model: 'rerank-v1',
+        model_type: ModelTypeEnum.rerank,
+      })
+
+      expect(createModel({
+        provider: 'cohere',
+        label: { en_US: 'Cohere', zh_Hans: 'Cohere' },
+        models: [customModelItem],
+      })).toEqual(expect.objectContaining({
+        provider: 'cohere',
+        label: { en_US: 'Cohere', zh_Hans: 'Cohere' },
+        models: [customModelItem],
+      }))
+    })
+  })
+
+  describe('createDefaultModel', () => {
+    it('should return the default provider and model selection', () => {
+      expect(createDefaultModel()).toEqual({
+        provider: 'openai',
+        model: 'text-embedding-3-large',
+      })
+    })
+
+    it('should allow overriding the default provider selection', () => {
+      expect(createDefaultModel({
+        provider: 'azure_openai',
+        model: 'text-embedding-3-small',
+      })).toEqual({
+        provider: 'azure_openai',
+        model: 'text-embedding-3-small',
+      })
+    })
+  })
+
+  describe('createProviderMeta', () => {
+    it('should return provider metadata with credential and system configuration defaults', () => {
+      expect(createProviderMeta()).toEqual({
+        provider: 'openai',
+        label: { en_US: 'OpenAI', zh_Hans: 'OpenAI' },
+        help: {
+          title: { en_US: 'Help', zh_Hans: 'Help' },
+          url: { en_US: 'https://example.com/help', zh_Hans: 'https://example.com/help' },
+        },
+        icon_small: { en_US: 'icon', zh_Hans: 'icon' },
+        icon_small_dark: { en_US: 'icon-dark', zh_Hans: 'icon-dark' },
+        supported_model_types: [ModelTypeEnum.textEmbedding],
+        configurate_methods: [ConfigurationMethodEnum.predefinedModel],
+        provider_credential_schema: {
+          credential_form_schemas: [],
+        },
+        model_credential_schema: {
+          model: {
+            label: { en_US: 'Model', zh_Hans: 'Model' },
+            placeholder: { en_US: 'Select model', zh_Hans: 'Select model' },
+          },
+          credential_form_schemas: [],
+        },
+        preferred_provider_type: PreferredProviderTypeEnum.custom,
+        custom_configuration: {
+          status: CustomConfigurationStatusEnum.active,
+        },
+        system_configuration: {
+          enabled: true,
+          current_quota_type: CurrentSystemQuotaTypeEnum.free,
+          quota_configurations: [],
+        },
+      })
+    })
+
+    it('should apply provider metadata overrides', () => {
+      expect(createProviderMeta({
+        provider: 'bedrock',
+        supported_model_types: [ModelTypeEnum.textGeneration],
+        preferred_provider_type: PreferredProviderTypeEnum.system,
+        system_configuration: {
+          enabled: false,
+          current_quota_type: CurrentSystemQuotaTypeEnum.paid,
+          quota_configurations: [],
+        },
+      })).toEqual(expect.objectContaining({
+        provider: 'bedrock',
+        supported_model_types: [ModelTypeEnum.textGeneration],
+        preferred_provider_type: PreferredProviderTypeEnum.system,
+        system_configuration: {
+          enabled: false,
+          current_quota_type: CurrentSystemQuotaTypeEnum.paid,
+          quota_configurations: [],
+        },
+      }))
+    })
+  })
+
+  describe('createCredentialState', () => {
+    it('should return the default active credential panel state', () => {
+      expect(createCredentialState()).toEqual({
+        variant: 'api-active',
+        priority: 'apiKeyOnly',
+        supportsCredits: false,
+        showPrioritySwitcher: false,
+        isCreditsExhausted: false,
+        hasCredentials: true,
+        credentialName: undefined,
+        credits: 0,
+      })
+    })
+
+    it('should allow overriding the credential panel state', () => {
+      expect(createCredentialState({
+        variant: 'credits-active',
+        supportsCredits: true,
+        showPrioritySwitcher: true,
+        credits: 12,
+        credentialName: 'Primary Key',
+      })).toEqual(expect.objectContaining({
+        variant: 'credits-active',
+        supportsCredits: true,
+        showPrioritySwitcher: true,
+        credits: 12,
+        credentialName: 'Primary Key',
+      }))
+    })
+  })
+})
diff --git a/web/app/components/workflow/__tests__/model-provider-fixtures.ts b/web/app/components/workflow/__tests__/model-provider-fixtures.ts
new file mode 100644
index 0000000000..988ed8df64
--- /dev/null
+++ b/web/app/components/workflow/__tests__/model-provider-fixtures.ts
@@ -0,0 +1,97 @@
+import type {
+  DefaultModel,
+  Model,
+  ModelItem,
+  ModelProvider,
+} from '@/app/components/header/account-setting/model-provider-page/declarations'
+import type { CredentialPanelState } from '@/app/components/header/account-setting/model-provider-page/provider-added-card/use-credential-panel-state'
+import {
+  ConfigurationMethodEnum,
+  CurrentSystemQuotaTypeEnum,
+  CustomConfigurationStatusEnum,
+  ModelStatusEnum,
+  ModelTypeEnum,
+  PreferredProviderTypeEnum,
+} from '@/app/components/header/account-setting/model-provider-page/declarations'
+
+export function createModelItem(overrides: Partial<ModelItem> = {}): ModelItem {
+  return {
+    model: 'text-embedding-3-large',
+    label: { en_US: 'Text Embedding 3 Large', zh_Hans: 'Text Embedding 3 Large' },
+    model_type: ModelTypeEnum.textEmbedding,
+    fetch_from: ConfigurationMethodEnum.predefinedModel,
+    status: ModelStatusEnum.active,
+    model_properties: {},
+    load_balancing_enabled: false,
+    ...overrides,
+  }
+}
+
+export function createModel(overrides: Partial<Model> = {}): Model {
+  return {
+    provider: 'openai',
+    icon_small: { en_US: 'icon', zh_Hans: 'icon' },
+    icon_small_dark: { en_US: 'icon-dark', zh_Hans: 'icon-dark' },
+    label: { en_US: 'OpenAI', zh_Hans: 'OpenAI' },
+    models: [createModelItem()],
+    status: ModelStatusEnum.active,
+    ...overrides,
+  }
+}
+
+export function createDefaultModel(overrides: Partial<DefaultModel> = {}): DefaultModel {
+  return {
+    provider: 'openai',
+    model: 'text-embedding-3-large',
+    ...overrides,
+  }
+}
+
+export function createProviderMeta(overrides: Partial<ModelProvider> = {}): ModelProvider {
+  return {
+    provider: 'openai',
+    label: { en_US: 'OpenAI', zh_Hans: 'OpenAI' },
+    help: {
+      title: { en_US: 'Help', zh_Hans: 'Help' },
+      url: { en_US: 'https://example.com/help', zh_Hans: 'https://example.com/help' },
+    },
+    icon_small: { en_US: 'icon', zh_Hans: 'icon' },
+    icon_small_dark: { en_US: 'icon-dark', zh_Hans: 'icon-dark' },
+    supported_model_types: [ModelTypeEnum.textEmbedding],
+    configurate_methods: [ConfigurationMethodEnum.predefinedModel],
+    provider_credential_schema: {
+      credential_form_schemas: [],
+    },
+    model_credential_schema: {
+      model: {
+        label: { en_US: 'Model', zh_Hans: 'Model' },
+        placeholder: { en_US: 'Select model', zh_Hans: 'Select model' },
+      },
+      credential_form_schemas: [],
+    },
+    preferred_provider_type: PreferredProviderTypeEnum.custom,
+    custom_configuration: {
+      status: CustomConfigurationStatusEnum.active,
+    },
+    system_configuration: {
+      enabled: true,
+      current_quota_type: CurrentSystemQuotaTypeEnum.free,
+      quota_configurations: [],
+    },
+    ...overrides,
+  }
+}
+
+export function createCredentialState(overrides: Partial<CredentialPanelState> = {}): CredentialPanelState {
+  return {
+    variant: 'api-active',
+    priority: 'apiKeyOnly',
+    supportsCredits: false,
+    showPrioritySwitcher: false,
+    isCreditsExhausted: false,
+    hasCredentials: true,
+    credentialName: undefined,
+    credits: 0,
+    ...overrides,
+  }
+}
diff --git a/web/app/components/workflow/__tests__/workflow-edge-events.spec.tsx b/web/app/components/workflow/__tests__/workflow-edge-events.spec.tsx
index 44bd1ea775..b926646433 100644
--- a/web/app/components/workflow/__tests__/workflow-edge-events.spec.tsx
+++ b/web/app/components/workflow/__tests__/workflow-edge-events.spec.tsx
@@ -1,16 +1,12 @@
-import type { EdgeChange, ReactFlowProps } from 'reactflow'
 import type { Edge, Node } from '../types'
-import { act, fireEvent, screen } from '@testing-library/react'
+import { act, fireEvent, screen, waitFor } from '@testing-library/react'
 import * as React from 'react'
+import { BaseEdge, internalsSymbol, Position, ReactFlowProvider, useStoreApi } from 'reactflow'
 import { FlowType } from '@/types/common'
 import { WORKFLOW_DATA_UPDATE } from '../constants'
 import { Workflow } from '../index'
 import { renderWorkflowComponent } from './workflow-test-env'
 
-const reactFlowState = vi.hoisted(() => ({
-  lastProps: null as ReactFlowProps | null,
-}))
-
 type WorkflowUpdateEvent = {
   type: string
   payload: {
@@ -23,6 +19,10 @@ const eventEmitterState = vi.hoisted(() => ({
   subscription: null as null | ((payload: WorkflowUpdateEvent) => void),
 }))
 
+const reactFlowBridge = vi.hoisted(() => ({
+  store: null as null | ReturnType<typeof useStoreApi>,
+}))
+
 const workflowHookMocks = vi.hoisted(() => ({
   handleNodeDragStart: vi.fn(),
   handleNodeDrag: vi.fn(),
@@ -52,90 +52,64 @@ const workflowHookMocks = vi.hoisted(() => ({
   useWorkflowSearch: vi.fn(),
 }))
 
+function createInitializedNode(id: string, x: number, label: string) {
+  return {
+    id,
+    position: { x, y: 0 },
+    positionAbsolute: { x, y: 0 },
+    width: 160,
+    height: 40,
+    sourcePosition: Position.Right,
+    targetPosition: Position.Left,
+    data: { label },
+    [internalsSymbol]: {
+      positionAbsolute: { x, y: 0 },
+      handleBounds: {
+        source: [{
+          id: null,
+          nodeId: id,
+          type: 'source',
+          position: Position.Right,
+          x: 160,
+          y: 0,
+          width: 0,
+          height: 40,
+        }],
+        target: [{
+          id: null,
+          nodeId: id,
+          type: 'target',
+          position: Position.Left,
+          x: 0,
+          y: 0,
+          width: 0,
+          height: 40,
+        }],
+      },
+      z: 0,
+    },
+  }
+}
+
 const baseNodes = [
-  {
-    id: 'node-1',
-    type: 'custom',
-    position: { x: 0, y: 0 },
-    data: {},
-  },
+  createInitializedNode('node-1', 0, 'Workflow node node-1'),
+  createInitializedNode('node-2', 240, 'Workflow node node-2'),
 ] as unknown as Node[]
 
 const baseEdges = [
   {
     id: 'edge-1',
+    type: 'custom',
     source: 'node-1',
     target: 'node-2',
     data: { sourceType: 'start', targetType: 'end' },
   },
 ] as unknown as Edge[]
 
-const edgeChanges: EdgeChange[] = [{ id: 'edge-1', type: 'remove' }]
-
-function createMouseEvent() {
-  return {
-    preventDefault: vi.fn(),
-    clientX: 24,
-    clientY: 48,
-  } as unknown as React.MouseEvent<Element, MouseEvent>
-}
-
 vi.mock('@/next/dynamic', () => ({
   default: () => () => null,
 }))
 
-vi.mock('reactflow', async () => {
-  const mod = await import('./reactflow-mock-state')
-  const base = mod.createReactFlowModuleMock()
-  const ReactFlowMock = (props: ReactFlowProps) => {
-    reactFlowState.lastProps = props
-    return React.createElement(
-      'div',
-      { 'data-testid': 'reactflow-mock' },
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit edge mouse enter',
-        'onClick': () => props.onEdgeMouseEnter?.(createMouseEvent(), baseEdges[0]),
-      }),
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit edge mouse leave',
-        'onClick': () => props.onEdgeMouseLeave?.(createMouseEvent(), baseEdges[0]),
-      }),
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit edges change',
-        'onClick': () => props.onEdgesChange?.(edgeChanges),
-      }),
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit edge context menu',
-        'onClick': () => props.onEdgeContextMenu?.(createMouseEvent(), baseEdges[0]),
-      }),
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit node context menu',
-        'onClick': () => props.onNodeContextMenu?.(createMouseEvent(), baseNodes[0]),
-      }),
-      React.createElement('button', {
-        'type': 'button',
-        'aria-label': 'Emit pane context menu',
-        'onClick': () => props.onPaneContextMenu?.(createMouseEvent()),
-      }),
-      props.children,
-    )
-  }
-
-  return {
-    ...base,
-    SelectionMode: {
-      Partial: 'partial',
-    },
-    ReactFlow: ReactFlowMock,
-    default: ReactFlowMock,
-  }
-})
-
 vi.mock('@/context/event-emitter', () => ({
   useEventEmitterContextContext: () => ({
     eventEmitter: {
@@ -166,7 +140,10 @@ vi.mock('../custom-connection-line', () => ({
 }))
 
 vi.mock('../custom-edge', () => ({
-  default: () => null,
+  default: () => React.createElement(BaseEdge, {
+    id: 'edge-1',
+    path: 'M 0 0 L 100 0',
+  }),
 }))
 
 vi.mock('../help-line', () => ({
@@ -182,7 +159,7 @@ vi.mock('../node-contextmenu', () => ({
 }))
 
 vi.mock('../nodes', () => ({
-  default: () => null,
+  default: ({ id }: { id: string }) => React.createElement('div', { 'data-testid': `workflow-node-${id}` }, `Workflow node ${id}`),
 }))
 
 vi.mock('../nodes/data-source-empty', () => ({
@@ -289,17 +266,24 @@ vi.mock('../nodes/_base/components/variable/use-match-schema-type', () => ({
   }),
 }))
 
-vi.mock('../workflow-history-store', () => ({
-  WorkflowHistoryProvider: ({ children }: { children?: React.ReactNode }) => React.createElement(React.Fragment, null, children),
-}))
+function renderSubject(options?: {
+  nodes?: Node[]
+  edges?: Edge[]
+  initialStoreState?: Record<string, unknown>
+}) {
+  const { nodes = baseNodes, edges = baseEdges, initialStoreState } = options ?? {}
 
-function renderSubject() {
   return renderWorkflowComponent(
-    <Workflow
-      nodes={baseNodes}
-      edges={baseEdges}
-    />,
+    <ReactFlowProvider>
+      <Workflow
+        nodes={nodes}
+        edges={edges}
+      >
+        <ReactFlowEdgeBootstrap nodes={nodes} edges={edges} />
+      </Workflow>
+    </ReactFlowProvider>,
     {
+      initialStoreState,
       hooksStoreProps: {
         configsMap: {
           flowId: 'flow-1',
@@ -311,75 +295,106 @@ function renderSubject() {
   )
 }
 
+function ReactFlowEdgeBootstrap({ nodes, edges }: { nodes: Node[], edges: Edge[] }) {
+  const store = useStoreApi()
+
+  React.useEffect(() => {
+    store.setState({
+      edges,
+      width: 500,
+      height: 500,
+      nodeInternals: new Map(nodes.map(node => [node.id, node])),
+    })
+    reactFlowBridge.store = store
+
+    return () => {
+      reactFlowBridge.store = null
+    }
+  }, [edges, nodes, store])
+
+  return null
+}
+
+function getPane(container: HTMLElement) {
+  const pane = container.querySelector('.react-flow__pane') as HTMLElement | null
+
+  if (!pane)
+    throw new Error('Expected a rendered React Flow pane')
+
+  return pane
+}
+
 describe('Workflow edge event wiring', () => {
   beforeEach(() => {
     vi.clearAllMocks()
-    reactFlowState.lastProps = null
     eventEmitterState.subscription = null
+    reactFlowBridge.store = null
   })
 
-  it('should forward React Flow edge events to workflow handlers when emitted by the canvas', () => {
-    renderSubject()
+  it('should forward pane, node and edge-change events to workflow handlers when emitted by the canvas', async () => {
+    const { container } = renderSubject()
+    const pane = getPane(container)
 
-    fireEvent.click(screen.getByRole('button', { name: 'Emit edge mouse enter' }))
-    fireEvent.click(screen.getByRole('button', { name: 'Emit edge mouse leave' }))
-    fireEvent.click(screen.getByRole('button', { name: 'Emit edges change' }))
-    fireEvent.click(screen.getByRole('button', { name: 'Emit edge context menu' }))
-    fireEvent.click(screen.getByRole('button', { name: 'Emit node context menu' }))
-    fireEvent.click(screen.getByRole('button', { name: 'Emit pane context menu' }))
+    act(() => {
+      fireEvent.contextMenu(screen.getByText('Workflow node node-1'), { clientX: 24, clientY: 48 })
+      fireEvent.contextMenu(pane, { clientX: 24, clientY: 48 })
+    })
 
-    expect(workflowHookMocks.handleEdgeEnter).toHaveBeenCalledWith(expect.objectContaining({
-      clientX: 24,
-      clientY: 48,
-    }), baseEdges[0])
-    expect(workflowHookMocks.handleEdgeLeave).toHaveBeenCalledWith(expect.objectContaining({
-      clientX: 24,
-      clientY: 48,
-    }), baseEdges[0])
-    expect(workflowHookMocks.handleEdgesChange).toHaveBeenCalledWith(edgeChanges)
-    expect(workflowHookMocks.handleEdgeContextMenu).toHaveBeenCalledWith(expect.objectContaining({
-      clientX: 24,
-      clientY: 48,
-    }), baseEdges[0])
-    expect(workflowHookMocks.handleNodeContextMenu).toHaveBeenCalledWith(expect.objectContaining({
-      clientX: 24,
-      clientY: 48,
-    }), baseNodes[0])
-    expect(workflowHookMocks.handlePaneContextMenu).toHaveBeenCalledWith(expect.objectContaining({
-      clientX: 24,
-      clientY: 48,
-    }))
+    await waitFor(() => {
+      expect(reactFlowBridge.store?.getState().onEdgesChange).toBeTypeOf('function')
+    })
+
+    act(() => {
+      reactFlowBridge.store?.getState().onEdgesChange?.([{ id: 'edge-1', type: 'select', selected: true }])
+    })
+
+    await waitFor(() => {
+      expect(workflowHookMocks.handleEdgesChange).toHaveBeenCalledWith(expect.arrayContaining([
+        expect.objectContaining({ id: 'edge-1', type: 'select' }),
+      ]))
+      expect(workflowHookMocks.handleNodeContextMenu).toHaveBeenCalledWith(expect.objectContaining({
+        clientX: 24,
+        clientY: 48,
+      }), expect.objectContaining({ id: 'node-1' }))
+      expect(workflowHookMocks.handlePaneContextMenu).toHaveBeenCalledWith(expect.objectContaining({
+        clientX: 24,
+        clientY: 48,
+      }))
+    })
   })
 
-  it('should keep edge deletion delegated to workflow shortcuts instead of React Flow defaults', () => {
-    renderSubject()
+  it('should keep edge deletion delegated to workflow shortcuts instead of React Flow defaults', async () => {
+    renderSubject({
+      edges: [
+        {
+          ...baseEdges[0],
+          selected: true,
+        } as Edge,
+      ],
+    })
 
-    expect(reactFlowState.lastProps?.deleteKeyCode).toBeNull()
+    act(() => {
+      fireEvent.keyDown(document.body, { key: 'Delete' })
+    })
+
+    await waitFor(() => {
+      expect(screen.getByText('Workflow node node-1')).toBeInTheDocument()
+    })
+    expect(workflowHookMocks.handleEdgesChange).not.toHaveBeenCalledWith(expect.arrayContaining([
+      expect.objectContaining({ id: 'edge-1', type: 'remove' }),
+    ]))
   })
 
   it('should clear edgeMenu when workflow data updates remove the current edge', () => {
-    const { store } = renderWorkflowComponent(
-      <Workflow
-        nodes={baseNodes}
-        edges={baseEdges}
-      />,
-      {
-        initialStoreState: {
-          edgeMenu: {
-            clientX: 320,
-            clientY: 180,
-            edgeId: 'edge-1',
-          },
-        },
-        hooksStoreProps: {
-          configsMap: {
-            flowId: 'flow-1',
-            flowType: FlowType.appFlow,
-            fileSettings: {},
-          },
+    const { store } = renderSubject({
+      initialStoreState: {
+        edgeMenu: {
+          clientX: 320,
+          clientY: 180,
+          edgeId: 'edge-1',
         },
       },
-    )
+    })
 
     act(() => {
       eventEmitterState.subscription?.({
diff --git a/web/app/components/workflow/__tests__/workflow-test-env.spec.tsx b/web/app/components/workflow/__tests__/workflow-test-env.spec.tsx
index d9a4efa12e..de13828f2a 100644
--- a/web/app/components/workflow/__tests__/workflow-test-env.spec.tsx
+++ b/web/app/components/workflow/__tests__/workflow-test-env.spec.tsx
@@ -4,10 +4,17 @@
 import type { Shape } from '../store/workflow'
 import { act, screen } from '@testing-library/react'
 import * as React from 'react'
+import { useNodes } from 'reactflow'
 import { FlowType } from '@/types/common'
 import { useHooksStore } from '../hooks-store/store'
 import { useStore, useWorkflowStore } from '../store/workflow'
-import { renderNodeComponent, renderWorkflowComponent } from './workflow-test-env'
+import { createNode } from './fixtures'
+import {
+  renderNodeComponent,
+  renderWorkflowComponent,
+  renderWorkflowFlowComponent,
+  renderWorkflowFlowHook,
+} from './workflow-test-env'
 
 // ---------------------------------------------------------------------------
 // Test components that read from workflow contexts
@@ -43,6 +50,12 @@ function NodeRenderer(props: { id: string, data: { title: string }, selected?: b
   )
 }
 
+function FlowReader() {
+  const nodes = useNodes()
+  const showConfirm = useStore(s => s.showConfirm)
+  return React.createElement('div', { 'data-testid': 'flow-reader' }, `${nodes.length}:${showConfirm ? 'confirm' : 'clear'}`)
+}
+
 // ---------------------------------------------------------------------------
 // Tests
 // ---------------------------------------------------------------------------
@@ -134,3 +147,30 @@ describe('renderNodeComponent', () => {
     expect(screen.getByTestId('node-store')).toHaveTextContent('test-node-1:hand')
   })
 })
+
+describe('renderWorkflowFlowComponent', () => {
+  it('should provide both ReactFlow and Workflow contexts', () => {
+    renderWorkflowFlowComponent(React.createElement(FlowReader), {
+      nodes: [
+        createNode({ id: 'n-1' }),
+        createNode({ id: 'n-2' }),
+      ],
+      initialStoreState: { showConfirm: { title: 'Hey', onConfirm: () => {} } },
+    })
+
+    expect(screen.getByTestId('flow-reader')).toHaveTextContent('2:confirm')
+  })
+})
+
+describe('renderWorkflowFlowHook', () => {
+  it('should render hooks inside a real ReactFlow provider', () => {
+    const { result } = renderWorkflowFlowHook(() => useNodes(), {
+      nodes: [
+        createNode({ id: 'flow-1' }),
+      ],
+    })
+
+    expect(result.current).toHaveLength(1)
+    expect(result.current[0].id).toBe('flow-1')
+  })
+})
diff --git a/web/app/components/workflow/__tests__/workflow-test-env.tsx b/web/app/components/workflow/__tests__/workflow-test-env.tsx
index cd11b886a2..1ee601317b 100644
--- a/web/app/components/workflow/__tests__/workflow-test-env.tsx
+++ b/web/app/components/workflow/__tests__/workflow-test-env.tsx
@@ -69,6 +69,7 @@ import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import { render, renderHook } from '@testing-library/react'
 import isDeepEqual from 'fast-deep-equal'
 import * as React from 'react'
+import ReactFlow, { ReactFlowProvider } from 'reactflow'
 import { temporal } from 'zundo'
 import { create } from 'zustand'
 import { WorkflowContext } from '../context'
@@ -252,6 +253,104 @@ export function renderWorkflowComponent(
   return { ...renderResult, ...stores }
 }
 
+// ---------------------------------------------------------------------------
+// renderWorkflowFlowComponent / renderWorkflowFlowHook — real ReactFlow wrappers
+// ---------------------------------------------------------------------------
+
+type WorkflowFlowOptions = WorkflowProviderOptions & {
+  nodes?: Node[]
+  edges?: Edge[]
+  reactFlowProps?: Omit<React.ComponentProps<typeof ReactFlow>, 'children' | 'nodes' | 'edges'>
+  canvasStyle?: React.CSSProperties
+}
+
+type WorkflowFlowComponentTestOptions = Omit<RenderOptions, 'wrapper'> & WorkflowFlowOptions
+type WorkflowFlowHookTestOptions<P> = Omit<RenderHookOptions<P>, 'wrapper'> & WorkflowFlowOptions
+
+function createWorkflowFlowWrapper(
+  stores: StoreInstances,
+  {
+    historyStore: historyConfig,
+    nodes = [],
+    edges = [],
+    reactFlowProps,
+    canvasStyle,
+  }: WorkflowFlowOptions,
+) {
+  const workflowWrapper = createWorkflowWrapper(stores, historyConfig)
+
+  return ({ children }: { children: React.ReactNode }) => React.createElement(
+    workflowWrapper,
+    null,
+    React.createElement(
+      'div',
+      { style: { width: 800, height: 600, ...canvasStyle } },
+      React.createElement(
+        ReactFlowProvider,
+        null,
+        React.createElement(ReactFlow, { fitView: true, ...reactFlowProps, nodes, edges }),
+        children,
+      ),
+    ),
+  )
+}
+
+export function renderWorkflowFlowComponent(
+  ui: React.ReactElement,
+  options?: WorkflowFlowComponentTestOptions,
+): WorkflowComponentTestResult {
+  const {
+    initialStoreState,
+    hooksStoreProps,
+    historyStore,
+    nodes,
+    edges,
+    reactFlowProps,
+    canvasStyle,
+    ...renderOptions
+  } = options ?? {}
+
+  const stores = createStoresFromOptions({ initialStoreState, hooksStoreProps })
+  const wrapper = createWorkflowFlowWrapper(stores, {
+    historyStore,
+    nodes,
+    edges,
+    reactFlowProps,
+    canvasStyle,
+  })
+
+  const renderResult = render(ui, { wrapper, ...renderOptions })
+  return { ...renderResult, ...stores }
+}
+
+export function renderWorkflowFlowHook<R, P = undefined>(
+  hook: (props: P) => R,
+  options?: WorkflowFlowHookTestOptions<P>,
+): WorkflowHookTestResult<R, P> {
+  const {
+    initialStoreState,
+    hooksStoreProps,
+    historyStore,
+    nodes,
+    edges,
+    reactFlowProps,
+    canvasStyle,
+    ...rest
+  } = options ?? {}
+
+  const stores = createStoresFromOptions({ initialStoreState, hooksStoreProps })
+  const wrapper = createWorkflowFlowWrapper(stores, {
+    historyStore,
+    nodes,
+    edges,
+    reactFlowProps,
+    canvasStyle,
+  })
+
+  const renderResult = renderHook(hook, { wrapper, ...rest })
+  return { ...renderResult, ...stores }
+}
+
 // ---------------------------------------------------------------------------
 // renderNodeComponent — convenience wrapper for node components
 // ---------------------------------------------------------------------------
diff --git a/web/app/components/workflow/block-selector/__tests__/all-start-blocks.spec.tsx b/web/app/components/workflow/block-selector/__tests__/all-start-blocks.spec.tsx
new file mode 100644
index 0000000000..2b28662b45
--- /dev/null
+++ b/web/app/components/workflow/block-selector/__tests__/all-start-blocks.spec.tsx
@@ -0,0 +1,277 @@
+import type { TriggerWithProvider } from '../types'
+import { render, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { useMarketplacePlugins } from '@/app/components/plugins/marketplace/hooks'
+import { CollectionType } from '@/app/components/tools/types'
+import { useGlobalPublicStore } from '@/context/global-public-context'
+import { useGetLanguage, useLocale } from '@/context/i18n'
+import useTheme from '@/hooks/use-theme'
+import { useFeaturedTriggersRecommendations } from '@/service/use-plugins'
+import { useAllTriggerPlugins, useInvalidateAllTriggerPlugins } from '@/service/use-triggers'
+import { Theme } from '@/types/app'
+import { defaultSystemFeatures } from '@/types/feature'
+import { useAvailableNodesMetaData } from '../../../workflow-app/hooks'
+import useNodes from '../../store/workflow/use-nodes'
+import { BlockEnum } from '../../types'
+import AllStartBlocks from '../all-start-blocks'
+
+vi.mock('@/context/global-public-context', () => ({
+  useGlobalPublicStore: vi.fn(),
+}))
+
+vi.mock('@/context/i18n', () => ({
+  useGetLanguage: vi.fn(),
+  useLocale: vi.fn(),
+}))
+
+vi.mock('@/hooks/use-theme', () => ({
+  default: vi.fn(),
+}))
+
+vi.mock('@/app/components/plugins/marketplace/hooks', () => ({
+  useMarketplacePlugins: vi.fn(),
+}))
+
+vi.mock('@/service/use-triggers', () => ({
+  useAllTriggerPlugins: vi.fn(),
+  useInvalidateAllTriggerPlugins: vi.fn(),
+}))
+
+vi.mock('@/service/use-plugins', () => ({
+  useFeaturedTriggersRecommendations: vi.fn(),
+}))
+
+vi.mock('../../store/workflow/use-nodes', () => ({
+  default: vi.fn(),
+}))
+
+vi.mock('../../../workflow-app/hooks', () => ({
+  useAvailableNodesMetaData: vi.fn(),
+}))
+
+vi.mock('@/utils/var', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/utils/var')>()
+  return {
+    ...actual,
+    getMarketplaceUrl: () => 'https://marketplace.test/start',
+  }
+})
+
+const mockUseGlobalPublicStore = vi.mocked(useGlobalPublicStore)
+const mockUseGetLanguage = vi.mocked(useGetLanguage)
+const mockUseLocale = vi.mocked(useLocale)
+const mockUseTheme = vi.mocked(useTheme)
+const mockUseMarketplacePlugins = vi.mocked(useMarketplacePlugins)
+const mockUseAllTriggerPlugins = vi.mocked(useAllTriggerPlugins)
+const mockUseInvalidateAllTriggerPlugins = vi.mocked(useInvalidateAllTriggerPlugins)
+const mockUseFeaturedTriggersRecommendations = vi.mocked(useFeaturedTriggersRecommendations)
+const mockUseNodes = vi.mocked(useNodes)
+const mockUseAvailableNodesMetaData = vi.mocked(useAvailableNodesMetaData)
+
+type UseMarketplacePluginsReturn = ReturnType<typeof useMarketplacePlugins>
+type UseAllTriggerPluginsReturn = ReturnType<typeof useAllTriggerPlugins>
+type UseFeaturedTriggersRecommendationsReturn = ReturnType<typeof useFeaturedTriggersRecommendations>
+
+const createTriggerProvider = (overrides: Partial<TriggerWithProvider> = {}): TriggerWithProvider => ({
+  id: 'provider-1',
+  name: 'provider-one',
+  author: 'Provider Author',
+  description: { en_US: 'desc', zh_Hans: '描述' },
+  icon: 'icon',
+  icon_dark: 'icon-dark',
+  label: { en_US: 'Provider One', zh_Hans: '提供商一' },
+  type: CollectionType.trigger,
+  team_credentials: {},
+  is_team_authorization: false,
+  allow_delete: false,
+  labels: [],
+  plugin_id: 'plugin-1',
+  plugin_unique_identifier: 'plugin-1@1.0.0',
+  meta: { version: '1.0.0' },
+  credentials_schema: [],
+  subscription_constructor: null,
+  subscription_schema: [],
+  supported_creation_methods: [],
+  events: [
+    {
+      name: 'created',
+      author: 'Provider Author',
+      label: { en_US: 'Created', zh_Hans: '创建' },
+      description: { en_US: 'Created event', zh_Hans: '创建事件' },
+      parameters: [],
+      labels: [],
+      output_schema: {},
+    },
+  ],
+  ...overrides,
+})
+
+const createSystemFeatures = (enableMarketplace: boolean) => ({
+  ...defaultSystemFeatures,
+  enable_marketplace: enableMarketplace,
+})
+
+const createGlobalPublicStoreState = (enableMarketplace: boolean) => ({
+  systemFeatures: createSystemFeatures(enableMarketplace),
+  setSystemFeatures: vi.fn(),
+})
+
+const createMarketplacePluginsMock = (
+  overrides: Partial<UseMarketplacePluginsReturn> = {},
+): UseMarketplacePluginsReturn => ({
+  plugins: [],
+  total: 0,
+  resetPlugins: vi.fn(),
+  queryPlugins: vi.fn(),
+  queryPluginsWithDebounced: vi.fn(),
+  cancelQueryPluginsWithDebounced: vi.fn(),
+  isLoading: false,
+  isFetchingNextPage: false,
+  hasNextPage: false,
+  fetchNextPage: vi.fn(),
+  page: 0,
+  ...overrides,
+})
+
+const createTriggerPluginsQueryResult = (
+  data: TriggerWithProvider[],
+): UseAllTriggerPluginsReturn => ({
+  data,
+  error: null,
+  isError: false,
+  isPending: false,
+  isLoading: false,
+  isSuccess: true,
+  isFetching: false,
+  isRefetching: false,
+  isLoadingError: false,
+  isRefetchError: false,
+  isInitialLoading: false,
+  isPaused: false,
+  isEnabled: true,
+  status: 'success',
+  fetchStatus: 'idle',
+  dataUpdatedAt: Date.now(),
+  errorUpdatedAt: 0,
+  failureCount: 0,
+  failureReason: null,
+  errorUpdateCount: 0,
+  isFetched: true,
+  isFetchedAfterMount: true,
+  isPlaceholderData: false,
+  isStale: false,
+  refetch: vi.fn(),
+  promise: Promise.resolve(data),
+} as UseAllTriggerPluginsReturn)
+
+const createFeaturedTriggersRecommendationsMock = (
+  overrides: Partial<UseFeaturedTriggersRecommendationsReturn> = {},
+): UseFeaturedTriggersRecommendationsReturn => ({
+  plugins: [],
+  isLoading: false,
+  ...overrides,
+})
+
+const createAvailableNodesMetaData = (): ReturnType<typeof useAvailableNodesMetaData> => ({
+  nodes: [],
+} as unknown as ReturnType<typeof useAvailableNodesMetaData>)
+
+describe('AllStartBlocks', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseGlobalPublicStore.mockImplementation(selector => selector(createGlobalPublicStoreState(false)))
+    mockUseGetLanguage.mockReturnValue('en_US')
+    mockUseLocale.mockReturnValue('en_US')
+    mockUseTheme.mockReturnValue({ theme: Theme.light } as ReturnType<typeof useTheme>)
+    mockUseMarketplacePlugins.mockReturnValue(createMarketplacePluginsMock())
+    mockUseAllTriggerPlugins.mockReturnValue(createTriggerPluginsQueryResult([createTriggerProvider()]))
+    mockUseInvalidateAllTriggerPlugins.mockReturnValue(vi.fn())
+    mockUseFeaturedTriggersRecommendations.mockReturnValue(createFeaturedTriggersRecommendationsMock())
+    mockUseNodes.mockReturnValue([])
+    mockUseAvailableNodesMetaData.mockReturnValue(createAvailableNodesMetaData())
+  })
+
+  // The combined start tab should merge built-in blocks, trigger plugins, and marketplace states.
+  describe('Content Rendering', () => {
+    it('should render start blocks and trigger plugin actions', async () => {
+      const user = userEvent.setup()
+      const onSelect = vi.fn()
+
+      render(
+        <AllStartBlocks
+          searchText=""
+          onSelect={onSelect}
+          availableBlocksTypes={[BlockEnum.Start, BlockEnum.TriggerPlugin]}
+          allowUserInputSelection
+        />,
+      )
+
+      await waitFor(() => {
+        expect(screen.getByText('workflow.tabs.allTriggers')).toBeInTheDocument()
+      })
+
+      expect(screen.getByText('workflow.blocks.start')).toBeInTheDocument()
+      expect(screen.getByText('Provider One')).toBeInTheDocument()
+
+      await user.click(screen.getByText('workflow.blocks.start'))
+      expect(onSelect).toHaveBeenCalledWith(BlockEnum.Start)
+
+      await user.click(screen.getByText('Provider One'))
+      await user.click(screen.getByText('Created'))
+
+      expect(onSelect).toHaveBeenCalledWith(BlockEnum.TriggerPlugin, expect.objectContaining({
+        provider_id: 'provider-one',
+        event_name: 'created',
+      }))
+    })
+
+    it('should show marketplace footer when marketplace is enabled without filters', async () => {
+      mockUseGlobalPublicStore.mockImplementation(selector => selector(createGlobalPublicStoreState(true)))
+
+      render(
+        <AllStartBlocks
+          searchText=""
+          onSelect={vi.fn()}
+          availableBlocksTypes={[BlockEnum.TriggerPlugin]}
+        />,
+      )
+
+      expect(await screen.findByRole('link', { name: /plugin\.findMoreInMarketplace/ })).toHaveAttribute('href', 'https://marketplace.test/start')
+    })
+  })
+
+  // Empty filter states should surface the request-to-community fallback.
+  describe('Filtered Empty State', () => {
+    it('should query marketplace and show the no-results state when filters have no matches', async () => {
+      const queryPluginsWithDebounced = vi.fn()
+      mockUseGlobalPublicStore.mockImplementation(selector => selector(createGlobalPublicStoreState(true)))
+      mockUseMarketplacePlugins.mockReturnValue(createMarketplacePluginsMock({
+        queryPluginsWithDebounced,
+      }))
+      mockUseAllTriggerPlugins.mockReturnValue(createTriggerPluginsQueryResult([]))
+
+      render(
+        <AllStartBlocks
+          searchText="missing"
+          tags={['webhook']}
+          onSelect={vi.fn()}
+          availableBlocksTypes={[BlockEnum.TriggerPlugin]}
+        />,
+      )
+
+      await waitFor(() => {
+        expect(queryPluginsWithDebounced).toHaveBeenCalledWith({
+          query: 'missing',
+          tags: ['webhook'],
+          category: 'trigger',
+        })
+      })
+
+      expect(screen.getByText('workflow.tabs.noPluginsFound')).toBeInTheDocument()
+      expect(screen.getByRole('link', { name: 'workflow.tabs.requestToCommunity' })).toHaveAttribute(
+        'href',
+        'https://github.com/langgenius/dify-plugins/issues/new?template=plugin_request.yaml',
+      )
+    })
+  })
+})
diff --git a/web/app/components/workflow/block-selector/__tests__/data-sources.spec.tsx b/web/app/components/workflow/block-selector/__tests__/data-sources.spec.tsx
new file mode 100644
index 0000000000..64bcd514c6
--- /dev/null
+++ b/web/app/components/workflow/block-selector/__tests__/data-sources.spec.tsx
@@ -0,0 +1,186 @@
+import type { ToolWithProvider } from '../../types'
+import { render, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { useMarketplacePlugins } from '@/app/components/plugins/marketplace/hooks'
+import { PluginCategoryEnum } from '@/app/components/plugins/types'
+import { CollectionType } from '@/app/components/tools/types'
+import { useGlobalPublicStore } from '@/context/global-public-context'
+import { useGetLanguage } from '@/context/i18n'
+import useTheme from '@/hooks/use-theme'
+import { Theme } from '@/types/app'
+import { defaultSystemFeatures } from '@/types/feature'
+import { BlockEnum } from '../../types'
+import DataSources from '../data-sources'
+
+vi.mock('@/context/global-public-context', () => ({
+  useGlobalPublicStore: vi.fn(),
+}))
+
+vi.mock('@/context/i18n', () => ({
+  useGetLanguage: vi.fn(),
+}))
+
+vi.mock('@/hooks/use-theme', () => ({
+  default: vi.fn(),
+}))
+
+vi.mock('@/app/components/plugins/marketplace/hooks', () => ({
+  useMarketplacePlugins: vi.fn(),
+}))
+
+const mockUseGlobalPublicStore = vi.mocked(useGlobalPublicStore)
+const mockUseGetLanguage = vi.mocked(useGetLanguage)
+const mockUseTheme = vi.mocked(useTheme)
+const mockUseMarketplacePlugins = vi.mocked(useMarketplacePlugins)
+
+type UseMarketplacePluginsReturn = ReturnType<typeof useMarketplacePlugins>
+
+const createToolProvider = (overrides: Partial<ToolWithProvider> = {}): ToolWithProvider => ({
+  id: 'langgenius/file',
+  name: 'file',
+  author: 'Dify',
+  description: { en_US: 'desc', zh_Hans: '描述' },
+  icon: 'icon',
+  label: { en_US: 'File Source', zh_Hans: '文件源' },
+  type: CollectionType.datasource,
+  team_credentials: {},
+  is_team_authorization: false,
+  allow_delete: false,
+  labels: [],
+  plugin_id: 'langgenius/file',
+  meta: { version: '1.0.0' },
+  tools: [
+    {
+      name: 'local-file',
+      author: 'Dify',
+      label: { en_US: 'Local File', zh_Hans: '本地文件' },
+      description: { en_US: 'Load local files', zh_Hans: '加载本地文件' },
+      parameters: [],
+      labels: [],
+      output_schema: {},
+    },
+  ],
+  ...overrides,
+})
+
+const createSystemFeatures = (enableMarketplace: boolean) => ({
+  ...defaultSystemFeatures,
+  enable_marketplace: enableMarketplace,
+})
+
+const createGlobalPublicStoreState = (enableMarketplace: boolean) => ({
+  systemFeatures: createSystemFeatures(enableMarketplace),
+  setSystemFeatures: vi.fn(),
+})
+
+const createMarketplacePluginsMock = (
+  overrides: Partial<UseMarketplacePluginsReturn> = {},
+): UseMarketplacePluginsReturn => ({
+  plugins: [],
+  total: 0,
+  resetPlugins: vi.fn(),
+  queryPlugins: vi.fn(),
+  queryPluginsWithDebounced: vi.fn(),
+  cancelQueryPluginsWithDebounced: vi.fn(),
+  isLoading: false,
+  isFetchingNextPage: false,
+  hasNextPage: false,
+  fetchNextPage: vi.fn(),
+  page: 0,
+  ...overrides,
+})
+
+describe('DataSources', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseGlobalPublicStore.mockImplementation(selector => selector(createGlobalPublicStoreState(false)))
+    mockUseGetLanguage.mockReturnValue('en_US')
+    mockUseTheme.mockReturnValue({ theme: Theme.light } as ReturnType<typeof useTheme>)
+    mockUseMarketplacePlugins.mockReturnValue(createMarketplacePluginsMock())
+  })
+
+  // Data source tools should filter by search and normalize the default value payload.
+  describe('Selection', () => {
+    it('should add default file extensions for the built-in local file data source', async () => {
+      const user = userEvent.setup()
+      const onSelect = vi.fn()
+
+      render(
+        <DataSources
+          searchText=""
+          onSelect={onSelect}
+          dataSources={[createToolProvider()]}
+        />,
+      )
+
+      await user.click(screen.getByText('File Source'))
+      await user.click(screen.getByText('Local File'))
+
+      expect(onSelect).toHaveBeenCalledWith(BlockEnum.DataSource, expect.objectContaining({
+        provider_name: 'file',
+        datasource_name: 'local-file',
+        datasource_label: 'Local File',
+        fileExtensions: expect.arrayContaining(['txt', 'pdf', 'md']),
+      }))
+    })
+
+    it('should filter providers by search text', () => {
+      render(
+        <DataSources
+          searchText="searchable"
+          onSelect={vi.fn()}
+          dataSources={[
+            createToolProvider({
+              id: 'searchable-provider',
+              name: 'searchable-provider',
+              label: { en_US: 'Searchable Source', zh_Hans: '可搜索源' },
+              tools: [{
+                name: 'searchable-tool',
+                author: 'Dify',
+                label: { en_US: 'Searchable Tool', zh_Hans: '可搜索工具' },
+                description: { en_US: 'desc', zh_Hans: '描述' },
+                parameters: [],
+                labels: [],
+                output_schema: {},
+              }],
+            }),
+            createToolProvider({
+              id: 'other-provider',
+              name: 'other-provider',
+              label: { en_US: 'Other Source', zh_Hans: '其他源' },
+            }),
+          ]}
+        />,
+      )
+
+      expect(screen.getByText('Searchable Source')).toBeInTheDocument()
+      expect(screen.queryByText('Other Source')).not.toBeInTheDocument()
+    })
+  })
+
+  // Marketplace search should only run when enabled and a search term is present.
+  describe('Marketplace Search', () => {
+    it('should query marketplace plugins for datasource search results', async () => {
+      const queryPluginsWithDebounced = vi.fn()
+      mockUseGlobalPublicStore.mockImplementation(selector => selector(createGlobalPublicStoreState(true)))
+      mockUseMarketplacePlugins.mockReturnValue(createMarketplacePluginsMock({
+        queryPluginsWithDebounced,
+      }))
+
+      render(
+        <DataSources
+          searchText="invoice"
+          onSelect={vi.fn()}
+          dataSources={[]}
+        />,
+      )
+
+      await waitFor(() => {
+        expect(queryPluginsWithDebounced).toHaveBeenCalledWith({
+          query: 'invoice',
+          category: PluginCategoryEnum.datasource,
+        })
+      })
+    })
+  })
+})
diff --git a/web/app/components/workflow/block-selector/__tests__/featured-triggers.spec.tsx b/web/app/components/workflow/block-selector/__tests__/featured-triggers.spec.tsx
new file mode 100644
index 0000000000..5955665f5e
--- /dev/null
+++ b/web/app/components/workflow/block-selector/__tests__/featured-triggers.spec.tsx
@@ -0,0 +1,197 @@
+import type { TriggerWithProvider } from '../types'
+import type { Plugin } from '@/app/components/plugins/types'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { PluginCategoryEnum, SupportedCreationMethods } from '@/app/components/plugins/types'
+import { CollectionType } from '@/app/components/tools/types'
+import useTheme from '@/hooks/use-theme'
+import { Theme } from '@/types/app'
+import { BlockEnum } from '../../types'
+import FeaturedTriggers from '../featured-triggers'
+
+vi.mock('@/context/i18n', () => ({
+  useGetLanguage: () => 'en_US',
+}))
+
+vi.mock('@/hooks/use-theme', () => ({
+  default: vi.fn(),
+}))
+
+vi.mock('@/app/components/workflow/block-selector/market-place-plugin/action', () => ({
+  default: () => <div data-testid="marketplace-action" />,
+}))
+
+vi.mock('@/app/components/plugins/install-plugin/install-from-marketplace', () => ({
+  default: () => <div data-testid="install-from-marketplace" />,
+}))
+
+vi.mock('@/utils/var', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/utils/var')>()
+  return {
+    ...actual,
+    getMarketplaceUrl: () => 'https://marketplace.test/triggers',
+  }
+})
+
+const mockUseTheme = vi.mocked(useTheme)
+
+const createPlugin = (overrides: Partial<Plugin> = {}): Plugin => ({
+  type: 'trigger',
+  org: 'org',
+  author: 'author',
+  name: 'trigger-plugin',
+  plugin_id: 'plugin-1',
+  version: '1.0.0',
+  latest_version: '1.0.0',
+  latest_package_identifier: 'plugin-1@1.0.0',
+  icon: 'icon',
+  verified: true,
+  label: { en_US: 'Plugin One', zh_Hans: '插件一' },
+  brief: { en_US: 'Brief', zh_Hans: '简介' },
+  description: { en_US: 'Plugin description', zh_Hans: '插件描述' },
+  introduction: 'Intro',
+  repository: 'https://example.com',
+  category: PluginCategoryEnum.trigger,
+  install_count: 12,
+  endpoint: { settings: [] },
+  tags: [{ name: 'tag' }],
+  badges: [],
+  verification: { authorized_category: 'community' },
+  from: 'marketplace',
+  ...overrides,
+})
+
+const createTriggerProvider = (overrides: Partial<TriggerWithProvider> = {}): TriggerWithProvider => ({
+  id: 'provider-1',
+  name: 'provider-one',
+  author: 'Provider Author',
+  description: { en_US: 'desc', zh_Hans: '描述' },
+  icon: 'icon',
+  icon_dark: 'icon-dark',
+  label: { en_US: 'Provider One', zh_Hans: '提供商一' },
+  type: CollectionType.trigger,
+  team_credentials: {},
+  is_team_authorization: false,
+  allow_delete: false,
+  labels: [],
+  plugin_id: 'plugin-1',
+  plugin_unique_identifier: 'plugin-1@1.0.0',
+  meta: { version: '1.0.0' },
+  credentials_schema: [],
+  subscription_constructor: null,
+  subscription_schema: [],
+  supported_creation_methods: [SupportedCreationMethods.MANUAL],
+  events: [
+    {
+      name: 'created',
+      author: 'Provider Author',
+      label: { en_US: 'Created', zh_Hans: '创建' },
+      description: { en_US: 'Created event', zh_Hans: '创建事件' },
+      parameters: [],
+      labels: [],
+      output_schema: {},
+    },
+  ],
+  ...overrides,
+})
+
+describe('FeaturedTriggers', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTheme.mockReturnValue({ theme: Theme.light } as ReturnType<typeof useTheme>)
+  })
+
+  // The section should persist collapse state and allow expanding recommended rows.
+  describe('Visibility Controls', () => {
+    it('should persist collapse state in localStorage', async () => {
+      const user = userEvent.setup()
+
+      render(
+        <FeaturedTriggers
+          plugins={[]}
+          providerMap={new Map()}
+          onSelect={vi.fn()}
+        />,
+      )
+
+      await user.click(screen.getByRole('button', { name: /workflow\.tabs\.featuredTools/ }))
+
+      expect(screen.queryByRole('link', { name: 'workflow.tabs.noFeaturedTriggers' })).not.toBeInTheDocument()
+      expect(globalThis.localStorage.setItem).toHaveBeenCalledWith('workflow_triggers_featured_collapsed', 'true')
+    })
+
+    it('should show more and show less across installed providers', async () => {
+      const user = userEvent.setup()
+      const providers = Array.from({ length: 6 }).map((_, index) => createTriggerProvider({
+        id: `provider-${index}`,
+        name: `provider-${index}`,
+        label: { en_US: `Provider ${index}`, zh_Hans: `提供商${index}` },
+        plugin_id: `plugin-${index}`,
+        plugin_unique_identifier: `plugin-${index}@1.0.0`,
+      }))
+      const providerMap = new Map(providers.map(provider => [provider.plugin_id!, provider]))
+      const plugins = providers.map(provider => createPlugin({
+        plugin_id: provider.plugin_id!,
+        latest_package_identifier: provider.plugin_unique_identifier,
+      }))
+
+      render(
+        <FeaturedTriggers
+          plugins={plugins}
+          providerMap={providerMap}
+          onSelect={vi.fn()}
+        />,
+      )
+
+      expect(screen.getByText('Provider 4')).toBeInTheDocument()
+      expect(screen.queryByText('Provider 5')).not.toBeInTheDocument()
+
+      await user.click(screen.getByText('workflow.tabs.showMoreFeatured'))
+      expect(screen.getByText('Provider 5')).toBeInTheDocument()
+
+      await user.click(screen.getByText('workflow.tabs.showLessFeatured'))
+      expect(screen.queryByText('Provider 5')).not.toBeInTheDocument()
+    })
+  })
+
+  // Rendering should cover the empty state link and installed trigger selection.
+  describe('Rendering and Selection', () => {
+    it('should render the empty state link when there are no featured plugins', () => {
+      render(
+        <FeaturedTriggers
+          plugins={[]}
+          providerMap={new Map()}
+          onSelect={vi.fn()}
+        />,
+      )
+
+      expect(screen.getByRole('link', { name: 'workflow.tabs.noFeaturedTriggers' })).toHaveAttribute('href', 'https://marketplace.test/triggers')
+    })
+
+    it('should select an installed trigger event from the featured list', async () => {
+      const user = userEvent.setup()
+      const onSelect = vi.fn()
+      const provider = createTriggerProvider()
+
+      render(
+        <FeaturedTriggers
+          plugins={[createPlugin({ plugin_id: 'plugin-1', latest_package_identifier: 'plugin-1@1.0.0' })]}
+          providerMap={new Map([
+            ['plugin-1', provider],
+            ['plugin-1@1.0.0', provider],
+          ])}
+          onSelect={onSelect}
+        />,
+      )
+
+      await user.click(screen.getByText('Provider One'))
+      await user.click(screen.getByText('Created'))
+
+      expect(onSelect).toHaveBeenCalledWith(BlockEnum.TriggerPlugin, expect.objectContaining({
+        provider_id: 'provider-one',
+        event_name: 'created',
+        event_label: 'Created',
+      }))
+    })
+  })
+})
diff --git a/web/app/components/workflow/block-selector/__tests__/index-bar.spec.tsx b/web/app/components/workflow/block-selector/__tests__/index-bar.spec.tsx
new file mode 100644
index 0000000000..91b158344b
--- /dev/null
+++ b/web/app/components/workflow/block-selector/__tests__/index-bar.spec.tsx
@@ -0,0 +1,97 @@
+import type { ToolWithProvider } from '../../types'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { CollectionType } from '../../../tools/types'
+import IndexBar, {
+  CUSTOM_GROUP_NAME,
+  DATA_SOURCE_GROUP_NAME,
+  groupItems,
+  WORKFLOW_GROUP_NAME,
+} from '../index-bar'
+
+const createToolProvider = (overrides: Partial<ToolWithProvider> = {}): ToolWithProvider => ({
+  id: 'provider-1',
+  name: 'Provider 1',
+  author: 'Author',
+  description: { en_US: 'desc', zh_Hans: '描述' },
+  icon: 'icon',
+  label: { en_US: 'Alpha', zh_Hans: '甲' },
+  type: CollectionType.builtIn,
+  team_credentials: {},
+  is_team_authorization: false,
+  allow_delete: false,
+  labels: [],
+  tools: [],
+  meta: { version: '1.0.0' },
+  ...overrides,
+})
+
+describe('IndexBar', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Grouping should normalize Chinese initials, custom groups, and hash ordering.
+  describe('groupItems', () => {
+    it('should group providers by first letter and move hash to the end', () => {
+      const items: ToolWithProvider[] = [
+        createToolProvider({
+          id: 'alpha',
+          label: { en_US: 'Alpha', zh_Hans: '甲' },
+          type: CollectionType.builtIn,
+          author: 'Builtin',
+        }),
+        createToolProvider({
+          id: 'custom',
+          label: { en_US: '1Custom', zh_Hans: '1自定义' },
+          type: CollectionType.custom,
+          author: 'Custom',
+        }),
+        createToolProvider({
+          id: 'workflow',
+          label: { en_US: '中文工作流', zh_Hans: '中文工作流' },
+          type: CollectionType.workflow,
+          author: 'Workflow',
+        }),
+        createToolProvider({
+          id: 'source',
+          label: { en_US: 'Data Source', zh_Hans: '数据源' },
+          type: CollectionType.datasource,
+          author: 'Data',
+        }),
+      ]
+
+      const result = groupItems(items, item => item.label.zh_Hans[0] || item.label.en_US[0] || '')
+
+      expect(result.letters).toEqual(['J', 'S', 'Z', '#'])
+      expect(result.groups.J.Builtin).toHaveLength(1)
+      expect(result.groups.Z[WORKFLOW_GROUP_NAME]).toHaveLength(1)
+      expect(result.groups.S[DATA_SOURCE_GROUP_NAME]).toHaveLength(1)
+      expect(result.groups['#'][CUSTOM_GROUP_NAME]).toHaveLength(1)
+    })
+  })
+
+  // Clicking a letter should scroll the matching section into view.
+  describe('Rendering', () => {
+    it('should call scrollIntoView for the selected letter', async () => {
+      const user = userEvent.setup()
+      const scrollIntoView = vi.fn()
+      const itemRefs = {
+        current: {
+          A: { scrollIntoView } as unknown as HTMLElement,
+        },
+      }
+
+      render(
+        <IndexBar
+          letters={['A']}
+          itemRefs={itemRefs}
+        />,
+      )
+
+      await user.click(screen.getByText('A'))
+
+      expect(scrollIntoView).toHaveBeenCalledWith({ behavior: 'smooth' })
+    })
+  })
+})
diff --git a/web/app/components/workflow/block-selector/__tests__/start-blocks.spec.tsx b/web/app/components/workflow/block-selector/__tests__/start-blocks.spec.tsx
new file mode 100644
index 0000000000..6bb50aeca3
--- /dev/null
+++ b/web/app/components/workflow/block-selector/__tests__/start-blocks.spec.tsx
@@ -0,0 +1,80 @@
+import type { CommonNodeType } from '../../types'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import useNodes from '@/app/components/workflow/store/workflow/use-nodes'
+import { useAvailableNodesMetaData } from '../../../workflow-app/hooks'
+import { BlockEnum } from '../../types'
+import StartBlocks from '../start-blocks'
+
+vi.mock('@/app/components/workflow/store/workflow/use-nodes', () => ({
+  default: vi.fn(),
+}))
+
+vi.mock('../../../workflow-app/hooks', () => ({
+  useAvailableNodesMetaData: vi.fn(),
+}))
+
+const mockUseNodes = vi.mocked(useNodes)
+const mockUseAvailableNodesMetaData = vi.mocked(useAvailableNodesMetaData)
+
+const createNode = (type: BlockEnum) => ({
+  data: { type } as Pick<CommonNodeType, 'type'>,
+}) as ReturnType<typeof useNodes>[number]
+
+const createAvailableNodesMetaData = (): ReturnType<typeof useAvailableNodesMetaData> => ({
+  nodes: [],
+} as unknown as ReturnType<typeof useAvailableNodesMetaData>)
+
+describe('StartBlocks', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseNodes.mockReturnValue([])
+    mockUseAvailableNodesMetaData.mockReturnValue(createAvailableNodesMetaData())
+  })
+
+  // Start block selection should respect available types and workflow state.
+  describe('Filtering and Selection', () => {
+    it('should render available start blocks and forward selection', async () => {
+      const user = userEvent.setup()
+      const onSelect = vi.fn()
+      const onContentStateChange = vi.fn()
+
+      render(
+        <StartBlocks
+          searchText=""
+          onSelect={onSelect}
+          availableBlocksTypes={[BlockEnum.Start, BlockEnum.TriggerWebhook]}
+          onContentStateChange={onContentStateChange}
+        />,
+      )
+
+      expect(screen.getByText('workflow.blocks.start')).toBeInTheDocument()
+      expect(screen.getByText('workflow.blocks.trigger-webhook')).toBeInTheDocument()
+      expect(screen.getByText('workflow.blocks.originalStartNode')).toBeInTheDocument()
+      expect(onContentStateChange).toHaveBeenCalledWith(true)
+
+      await user.click(screen.getByText('workflow.blocks.start'))
+
+      expect(onSelect).toHaveBeenCalledWith(BlockEnum.Start)
+    })
+
+    it('should hide user input when a start node already exists or hideUserInput is enabled', () => {
+      const onContentStateChange = vi.fn()
+      mockUseNodes.mockReturnValue([createNode(BlockEnum.Start)])
+
+      const { container } = render(
+        <StartBlocks
+          searchText=""
+          onSelect={vi.fn()}
+          availableBlocksTypes={[BlockEnum.Start]}
+          onContentStateChange={onContentStateChange}
+          hideUserInput
+        />,
+      )
+
+      expect(container).toBeEmptyDOMElement()
+      expect(screen.queryByText('workflow.blocks.start')).not.toBeInTheDocument()
+      expect(onContentStateChange).toHaveBeenCalledWith(false)
+    })
+  })
+})
diff --git a/web/app/components/workflow/edge-contextmenu.spec.tsx b/web/app/components/workflow/edge-contextmenu.spec.tsx
deleted file mode 100644
index c1b021e624..0000000000
--- a/web/app/components/workflow/edge-contextmenu.spec.tsx
+++ /dev/null
@@ -1,340 +0,0 @@
-import { fireEvent, screen, waitFor } from '@testing-library/react'
-import userEvent from '@testing-library/user-event'
-import { useEffect } from 'react'
-import { resetReactFlowMockState, rfState } from './__tests__/reactflow-mock-state'
-import { renderWorkflowComponent } from './__tests__/workflow-test-env'
-import EdgeContextmenu from './edge-contextmenu'
-import { useEdgesInteractions } from './hooks/use-edges-interactions'
-
-vi.mock('reactflow', async () =>
-  (await import('./__tests__/reactflow-mock-state')).createReactFlowModuleMock())
-
-const mockSaveStateToHistory = vi.fn()
-
-vi.mock('./hooks/use-workflow-history', () => ({
-  useWorkflowHistory: () => ({ saveStateToHistory: mockSaveStateToHistory }),
-  WorkflowHistoryEvent: {
-    EdgeDelete: 'EdgeDelete',
-    EdgeDeleteByDeleteBranch: 'EdgeDeleteByDeleteBranch',
-    EdgeSourceHandleChange: 'EdgeSourceHandleChange',
-  },
-}))
-
-vi.mock('./hooks/use-workflow', () => ({
-  useNodesReadOnly: () => ({
-    getNodesReadOnly: () => false,
-  }),
-}))
-
-vi.mock('./utils', async (importOriginal) => {
-  const actual = await importOriginal<typeof import('./utils')>()
-
-  return {
-    ...actual,
-    getNodesConnectedSourceOrTargetHandleIdsMap: vi.fn(() => ({})),
-  }
-})
-
-vi.mock('./hooks', async () => {
-  const { useEdgesInteractions } = await import('./hooks/use-edges-interactions')
-  const { usePanelInteractions } = await import('./hooks/use-panel-interactions')
-
-  return {
-    useEdgesInteractions,
-    usePanelInteractions,
-  }
-})
-
-describe('EdgeContextmenu', () => {
-  const hooksStoreProps = {
-    doSyncWorkflowDraft: vi.fn().mockResolvedValue(undefined),
-  }
-  type TestNode = typeof rfState.nodes[number] & {
-    selected?: boolean
-    data: {
-      selected?: boolean
-      _isBundled?: boolean
-    }
-  }
-  type TestEdge = typeof rfState.edges[number] & {
-    selected?: boolean
-  }
-  const createNode = (id: string, selected = false): TestNode => ({
-    id,
-    position: { x: 0, y: 0 },
-    data: { selected },
-    selected,
-  })
-  const createEdge = (id: string, selected = false): TestEdge => ({
-    id,
-    source: 'n1',
-    target: 'n2',
-    data: {},
-    selected,
-  })
-
-  const EdgeMenuHarness = () => {
-    const { handleEdgeContextMenu, handleEdgeDelete } = useEdgesInteractions()
-
-    useEffect(() => {
-      const handleKeyDown = (e: KeyboardEvent) => {
-        if (e.key !== 'Delete' && e.key !== 'Backspace')
-          return
-
-        e.preventDefault()
-        handleEdgeDelete()
-      }
-
-      document.addEventListener('keydown', handleKeyDown)
-      return () => {
-        document.removeEventListener('keydown', handleKeyDown)
-      }
-    }, [handleEdgeDelete])
-
-    return (
-      <div>
-        <button
-          type="button"
-          aria-label="Right-click edge e1"
-          onContextMenu={e => handleEdgeContextMenu(e as never, rfState.edges.find(edge => edge.id === 'e1') as never)}
-        >
-          edge-e1
-        </button>
-        <button
-          type="button"
-          aria-label="Right-click edge e2"
-          onContextMenu={e => handleEdgeContextMenu(e as never, rfState.edges.find(edge => edge.id === 'e2') as never)}
-        >
-          edge-e2
-        </button>
-        <EdgeContextmenu />
-      </div>
-    )
-  }
-
-  beforeEach(() => {
-    vi.clearAllMocks()
-    resetReactFlowMockState()
-    rfState.nodes = [
-      createNode('n1'),
-      createNode('n2'),
-    ]
-    rfState.edges = [
-      createEdge('e1', true) as typeof rfState.edges[number] & { selected: boolean },
-      createEdge('e2'),
-    ]
-    rfState.setNodes.mockImplementation((nextNodes) => {
-      rfState.nodes = nextNodes as typeof rfState.nodes
-    })
-    rfState.setEdges.mockImplementation((nextEdges) => {
-      rfState.edges = nextEdges as typeof rfState.edges
-    })
-  })
-
-  it('should not render when edgeMenu is absent', () => {
-    renderWorkflowComponent(<EdgeContextmenu />, {
-      hooksStoreProps,
-    })
-
-    expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-  })
-
-  it('should delete the menu edge and close the menu when another edge is selected', async () => {
-    const user = userEvent.setup()
-    ;(rfState.edges[0] as Record<string, unknown>).selected = true
-    ;(rfState.edges[1] as Record<string, unknown>).selected = false
-
-    const { store } = renderWorkflowComponent(<EdgeContextmenu />, {
-      initialStoreState: {
-        edgeMenu: {
-          clientX: 320,
-          clientY: 180,
-          edgeId: 'e2',
-        },
-      },
-      hooksStoreProps,
-    })
-
-    const deleteAction = await screen.findByRole('menuitem', { name: /common:operation\.delete/i })
-    expect(screen.getByText(/^del$/i)).toBeInTheDocument()
-
-    await user.click(deleteAction)
-
-    const updatedEdges = rfState.setEdges.mock.calls.at(-1)?.[0]
-    expect(updatedEdges).toHaveLength(1)
-    expect(updatedEdges[0].id).toBe('e1')
-    expect(updatedEdges[0].selected).toBe(true)
-    expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
-
-    await waitFor(() => {
-      expect(store.getState().edgeMenu).toBeUndefined()
-      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-    })
-  })
-
-  it('should not render the menu when the referenced edge no longer exists', () => {
-    renderWorkflowComponent(<EdgeContextmenu />, {
-      initialStoreState: {
-        edgeMenu: {
-          clientX: 320,
-          clientY: 180,
-          edgeId: 'missing-edge',
-        },
-      },
-      hooksStoreProps,
-    })
-
-    expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-  })
-
-  it('should open the edge menu at the right-click position', async () => {
-    const fromRectSpy = vi.spyOn(DOMRect, 'fromRect')
-
-    renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-
-    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
-      clientX: 320,
-      clientY: 180,
-    })
-
-    expect(await screen.findByRole('menu')).toBeInTheDocument()
-    expect(screen.getByRole('menuitem', { name: /common:operation\.delete/i })).toBeInTheDocument()
-    expect(fromRectSpy).toHaveBeenLastCalledWith(expect.objectContaining({
-      x: 320,
-      y: 180,
-      width: 0,
-      height: 0,
-    }))
-  })
-
-  it('should delete the right-clicked edge and close the menu when delete is clicked', async () => {
-    const user = userEvent.setup()
-
-    renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-
-    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
-      clientX: 320,
-      clientY: 180,
-    })
-
-    await user.click(await screen.findByRole('menuitem', { name: /common:operation\.delete/i }))
-
-    await waitFor(() => {
-      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-    })
-    expect(rfState.edges.map(edge => edge.id)).toEqual(['e1'])
-    expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
-  })
-
-  it.each([
-    ['Delete', 'Delete'],
-    ['Backspace', 'Backspace'],
-  ])('should delete the right-clicked edge with %s after switching from a selected node', async (_, key) => {
-    renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-    rfState.nodes = [createNode('n1', true), createNode('n2')]
-
-    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e2' }), {
-      clientX: 240,
-      clientY: 120,
-    })
-
-    expect(await screen.findByRole('menu')).toBeInTheDocument()
-
-    fireEvent.keyDown(document, { key })
-
-    await waitFor(() => {
-      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-    })
-    expect(rfState.edges.map(edge => edge.id)).toEqual(['e1'])
-    expect(rfState.nodes.map(node => node.id)).toEqual(['n1', 'n2'])
-    expect((rfState.nodes as TestNode[]).every(node => !node.selected && !node.data.selected)).toBe(true)
-  })
-
-  it('should keep bundled multi-selection nodes intact when delete runs after right-clicking an edge', async () => {
-    renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-    rfState.nodes = [
-      { ...createNode('n1', true), data: { selected: true, _isBundled: true } },
-      { ...createNode('n2', true), data: { selected: true, _isBundled: true } },
-    ]
-
-    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e1' }), {
-      clientX: 200,
-      clientY: 100,
-    })
-
-    expect(await screen.findByRole('menu')).toBeInTheDocument()
-
-    fireEvent.keyDown(document, { key: 'Delete' })
-
-    await waitFor(() => {
-      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-    })
-    expect(rfState.edges.map(edge => edge.id)).toEqual(['e2'])
-    expect(rfState.nodes).toHaveLength(2)
-    expect((rfState.nodes as TestNode[]).every(node => !node.selected && !node.data.selected && !node.data._isBundled)).toBe(true)
-  })
-
-  it('should retarget the menu and selected edge when right-clicking a different edge', async () => {
-    const fromRectSpy = vi.spyOn(DOMRect, 'fromRect')
-
-    renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-    const edgeOneButton = screen.getByLabelText('Right-click edge e1')
-    const edgeTwoButton = screen.getByLabelText('Right-click edge e2')
-
-    fireEvent.contextMenu(edgeOneButton, {
-      clientX: 80,
-      clientY: 60,
-    })
-    expect(await screen.findByRole('menu')).toBeInTheDocument()
-
-    fireEvent.contextMenu(edgeTwoButton, {
-      clientX: 360,
-      clientY: 240,
-    })
-
-    await waitFor(() => {
-      expect(screen.getAllByRole('menu')).toHaveLength(1)
-      expect(fromRectSpy).toHaveBeenLastCalledWith(expect.objectContaining({
-        x: 360,
-        y: 240,
-      }))
-      expect((rfState.edges as TestEdge[]).find(edge => edge.id === 'e1')?.selected).toBe(false)
-      expect((rfState.edges as TestEdge[]).find(edge => edge.id === 'e2')?.selected).toBe(true)
-    })
-  })
-
-  it('should hide the menu when the target edge disappears after opening it', async () => {
-    const { store } = renderWorkflowComponent(<EdgeMenuHarness />, {
-      hooksStoreProps,
-    })
-
-    fireEvent.contextMenu(screen.getByRole('button', { name: 'Right-click edge e1' }), {
-      clientX: 160,
-      clientY: 100,
-    })
-    expect(await screen.findByRole('menu')).toBeInTheDocument()
-
-    rfState.edges = [createEdge('e2')]
-    store.setState({
-      edgeMenu: {
-        clientX: 160,
-        clientY: 100,
-        edgeId: 'e1',
-      },
-    })
-
-    await waitFor(() => {
-      expect(screen.queryByRole('menu')).not.toBeInTheDocument()
-    })
-  })
-})
diff --git a/web/app/components/workflow/header/run-mode.spec.tsx b/web/app/components/workflow/header/__tests__/run-mode.spec.tsx
similarity index 94%
rename from web/app/components/workflow/header/run-mode.spec.tsx
rename to web/app/components/workflow/header/__tests__/run-mode.spec.tsx
index 2f44d4a21b..cb5214544a 100644
--- a/web/app/components/workflow/header/run-mode.spec.tsx
+++ b/web/app/components/workflow/header/__tests__/run-mode.spec.tsx
@@ -2,8 +2,8 @@ import type { ReactNode } from 'react'
 import { fireEvent, render, screen } from '@testing-library/react'
 import * as React from 'react'
 import { WorkflowRunningStatus } from '@/app/components/workflow/types'
-import RunMode from './run-mode'
-import { TriggerType } from './test-run-menu'
+import RunMode from '../run-mode'
+import { TriggerType } from '../test-run-menu'
 
 const mockHandleWorkflowStartRunInWorkflow = vi.fn()
 const mockHandleWorkflowTriggerScheduleRunInWorkflow = vi.fn()
@@ -42,7 +42,7 @@ vi.mock('@/app/components/workflow/store', () => ({
     selector({ workflowRunningData: mockWorkflowRunningData, isListening: mockIsListening }),
 }))
 
-vi.mock('../hooks/use-dynamic-test-run-options', () => ({
+vi.mock('../../hooks/use-dynamic-test-run-options', () => ({
   useDynamicTestRunOptions: () => mockDynamicOptions,
 }))
 
@@ -72,8 +72,8 @@ vi.mock('@/app/components/base/icons/src/vender/line/mediaAndDevices', () => ({
   StopCircle: () => <span data-testid="stop-circle" />,
 }))
 
-vi.mock('./test-run-menu', async (importOriginal) => {
-  const actual = await importOriginal<typeof import('./test-run-menu')>()
+vi.mock('../test-run-menu', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../test-run-menu')>()
   return {
     ...actual,
     default: React.forwardRef(({ children, options, onSelect }: { children: ReactNode, options: Array<{ type: TriggerType, nodeId?: string, relatedNodeIds?: string[] }>, onSelect: (option: { type: TriggerType, nodeId?: string, relatedNodeIds?: string[] }) => void }, ref) => {
diff --git a/web/app/components/workflow/header/checklist/index.spec.tsx b/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
similarity index 95%
rename from web/app/components/workflow/header/checklist/index.spec.tsx
rename to web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
index 6a31bd6a74..2c83747dc0 100644
--- a/web/app/components/workflow/header/checklist/index.spec.tsx
+++ b/web/app/components/workflow/header/checklist/__tests__/index.spec.tsx
@@ -1,7 +1,7 @@
 import type { ReactNode } from 'react'
 import { fireEvent, render, screen } from '@testing-library/react'
-import { BlockEnum } from '../../types'
-import WorkflowChecklist from './index'
+import { BlockEnum } from '../../../types'
+import WorkflowChecklist from '../index'
 
 let mockChecklistItems = [
   {
@@ -40,7 +40,7 @@ vi.mock('@/app/components/workflow/store/workflow/use-nodes', () => ({
   default: () => [],
 }))
 
-vi.mock('../../hooks', () => ({
+vi.mock('../../../hooks', () => ({
   useChecklist: () => mockChecklistItems,
   useNodesInteractions: () => ({
     handleNodeSelect: mockHandleNodeSelect,
@@ -57,11 +57,11 @@ vi.mock('@/app/components/base/ui/popover', () => ({
   PopoverClose: ({ children, className }: { children: ReactNode, className?: string }) => <button className={className}>{children}</button>,
 }))
 
-vi.mock('./plugin-group', () => ({
+vi.mock('../plugin-group', () => ({
   ChecklistPluginGroup: ({ items }: { items: Array<{ title: string }> }) => <div data-testid="plugin-group">{items.map(item => item.title).join(',')}</div>,
 }))
 
-vi.mock('./node-group', () => ({
+vi.mock('../node-group', () => ({
   ChecklistNodeGroup: ({ item, onItemClick }: { item: { title: string }, onItemClick: (item: { title: string }) => void }) => (
     <button data-testid={`node-group-${item.title}`} onClick={() => onItemClick(item)}>
       {item.title}
diff --git a/web/app/components/workflow/header/checklist/node-group.spec.tsx b/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
similarity index 90%
rename from web/app/components/workflow/header/checklist/node-group.spec.tsx
rename to web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
index 25f54211b4..d574dda0ac 100644
--- a/web/app/components/workflow/header/checklist/node-group.spec.tsx
+++ b/web/app/components/workflow/header/checklist/__tests__/node-group.spec.tsx
@@ -1,12 +1,12 @@
 import { fireEvent, render, screen } from '@testing-library/react'
-import { BlockEnum } from '../../types'
-import { ChecklistNodeGroup } from './node-group'
+import { BlockEnum } from '../../../types'
+import { ChecklistNodeGroup } from '../node-group'
 
-vi.mock('../../block-icon', () => ({
+vi.mock('../../../block-icon', () => ({
   default: () => <div data-testid="block-icon" />,
 }))
 
-vi.mock('./item-indicator', () => ({
+vi.mock('../item-indicator', () => ({
   ItemIndicator: () => <div data-testid="item-indicator" />,
 }))
 
diff --git a/web/app/components/workflow/header/checklist/plugin-group.spec.tsx b/web/app/components/workflow/header/checklist/__tests__/plugin-group.spec.tsx
similarity index 92%
rename from web/app/components/workflow/header/checklist/plugin-group.spec.tsx
rename to web/app/components/workflow/header/checklist/__tests__/plugin-group.spec.tsx
index 1d9f0dc7d6..275c8727d1 100644
--- a/web/app/components/workflow/header/checklist/plugin-group.spec.tsx
+++ b/web/app/components/workflow/header/checklist/__tests__/plugin-group.spec.tsx
@@ -1,10 +1,10 @@
-import type { ChecklistItem } from '../../hooks/use-checklist'
+import type { ChecklistItem } from '../../../hooks/use-checklist'
 import { fireEvent, render, screen } from '@testing-library/react'
 import { beforeEach, describe, expect, it } from 'vitest'
 import { Popover, PopoverContent } from '@/app/components/base/ui/popover'
-import { useStore as usePluginDependencyStore } from '../../plugin-dependency/store'
-import { BlockEnum } from '../../types'
-import { ChecklistPluginGroup } from './plugin-group'
+import { useStore as usePluginDependencyStore } from '../../../plugin-dependency/store'
+import { BlockEnum } from '../../../types'
+import { ChecklistPluginGroup } from '../plugin-group'
 
 const createChecklistItem = (overrides: Partial<ChecklistItem> = {}): ChecklistItem => ({
   id: 'node-1',
diff --git a/web/app/components/workflow/hooks/__tests__/use-auto-generate-webhook-url.spec.ts b/web/app/components/workflow/hooks/__tests__/use-auto-generate-webhook-url.spec.ts
index cad77c3af8..9f5f2da6a7 100644
--- a/web/app/components/workflow/hooks/__tests__/use-auto-generate-webhook-url.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-auto-generate-webhook-url.spec.ts
@@ -1,10 +1,17 @@
-import { renderHook } from '@testing-library/react'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
+import type { Node } from '../../types'
+import { act, waitFor } from '@testing-library/react'
+import { useNodes } from 'reactflow'
+import { createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { BlockEnum } from '../../types'
 import { useAutoGenerateWebhookUrl } from '../use-auto-generate-webhook-url'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
+type WebhookFlowNode = Node & {
+  data: NonNullable<Node['data']> & {
+    webhook_url?: string
+    webhook_debug_url?: string
+  }
+}
 
 vi.mock('@/app/components/app/store', async () =>
   (await import('../../__tests__/service-mock-factory')).createAppStoreMock({ appId: 'app-123' }))
@@ -15,13 +22,29 @@ vi.mock('@/service/apps', () => ({
 }))
 
 describe('useAutoGenerateWebhookUrl', () => {
+  const createFlowNodes = (): WebhookFlowNode[] => [
+    createNode({
+      id: 'webhook-1',
+      data: { type: BlockEnum.TriggerWebhook, webhook_url: '' },
+    }) as WebhookFlowNode,
+    createNode({
+      id: 'code-1',
+      position: { x: 300, y: 0 },
+      data: { type: BlockEnum.Code },
+    }) as WebhookFlowNode,
+  ]
+
+  const renderAutoGenerateWebhookUrlHook = () =>
+    renderWorkflowFlowHook(() => ({
+      autoGenerateWebhookUrl: useAutoGenerateWebhookUrl(),
+      nodes: useNodes<WebhookFlowNode>(),
+    }), {
+      nodes: createFlowNodes(),
+      edges: [],
+    })
+
   beforeEach(() => {
     vi.clearAllMocks()
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'webhook-1', position: { x: 0, y: 0 }, data: { type: BlockEnum.TriggerWebhook, webhook_url: '' } },
-      { id: 'code-1', position: { x: 300, y: 0 }, data: { type: BlockEnum.Code } },
-    ]
   })
 
   it('should fetch and set webhook URL for a webhook trigger node', async () => {
@@ -30,38 +53,63 @@ describe('useAutoGenerateWebhookUrl', () => {
       webhook_debug_url: 'https://example.com/webhook-debug',
     })
 
-    const { result } = renderHook(() => useAutoGenerateWebhookUrl())
-    await result.current('webhook-1')
+    const { result } = renderAutoGenerateWebhookUrlHook()
+
+    await act(async () => {
+      await result.current.autoGenerateWebhookUrl('webhook-1')
+    })
 
     expect(mockFetchWebhookUrl).toHaveBeenCalledWith({ appId: 'app-123', nodeId: 'webhook-1' })
-    expect(rfState.setNodes).toHaveBeenCalledOnce()
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    const webhookNode = updatedNodes.find((n: { id: string }) => n.id === 'webhook-1')
-    expect(webhookNode.data.webhook_url).toBe('https://example.com/webhook')
-    expect(webhookNode.data.webhook_debug_url).toBe('https://example.com/webhook-debug')
+    await waitFor(() => {
+      const webhookNode = result.current.nodes.find(node => node.id === 'webhook-1') as WebhookFlowNode | undefined
+      expect(webhookNode?.data.webhook_url).toBe('https://example.com/webhook')
+      expect(webhookNode?.data.webhook_debug_url).toBe('https://example.com/webhook-debug')
+    })
   })
 
   it('should not fetch when node is not a webhook trigger', async () => {
-    const { result } = renderHook(() => useAutoGenerateWebhookUrl())
-    await result.current('code-1')
+    const { result } = renderAutoGenerateWebhookUrlHook()
+
+    await act(async () => {
+      await result.current.autoGenerateWebhookUrl('code-1')
+    })
 
     expect(mockFetchWebhookUrl).not.toHaveBeenCalled()
-    expect(rfState.setNodes).not.toHaveBeenCalled()
+
+    const codeNode = result.current.nodes.find(node => node.id === 'code-1') as WebhookFlowNode | undefined
+    expect(codeNode?.data.webhook_url).toBeUndefined()
   })
 
   it('should not fetch when node does not exist', async () => {
-    const { result } = renderHook(() => useAutoGenerateWebhookUrl())
-    await result.current('nonexistent')
+    const { result } = renderAutoGenerateWebhookUrlHook()
+
+    await act(async () => {
+      await result.current.autoGenerateWebhookUrl('nonexistent')
+    })
 
     expect(mockFetchWebhookUrl).not.toHaveBeenCalled()
   })
 
   it('should not fetch when webhook_url already exists', async () => {
-    rfState.nodes[0].data.webhook_url = 'https://existing.com/webhook'
+    const { result } = renderWorkflowFlowHook(() => ({
+      autoGenerateWebhookUrl: useAutoGenerateWebhookUrl(),
+    }), {
+      nodes: [
+        createNode({
+          id: 'webhook-1',
+          data: {
+            type: BlockEnum.TriggerWebhook,
+            webhook_url: 'https://existing.com/webhook',
+          },
+        }) as WebhookFlowNode,
+      ],
+      edges: [],
+    })
 
-    const { result } = renderHook(() => useAutoGenerateWebhookUrl())
-    await result.current('webhook-1')
+    await act(async () => {
+      await result.current.autoGenerateWebhookUrl('webhook-1')
+    })
 
     expect(mockFetchWebhookUrl).not.toHaveBeenCalled()
   })
@@ -70,14 +118,18 @@ describe('useAutoGenerateWebhookUrl', () => {
     const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
     mockFetchWebhookUrl.mockRejectedValue(new Error('network error'))
 
-    const { result } = renderHook(() => useAutoGenerateWebhookUrl())
-    await result.current('webhook-1')
+    const { result } = renderAutoGenerateWebhookUrlHook()
+
+    await act(async () => {
+      await result.current.autoGenerateWebhookUrl('webhook-1')
+    })
 
     expect(consoleSpy).toHaveBeenCalledWith(
       'Failed to auto-generate webhook URL:',
       expect.any(Error),
     )
-    expect(rfState.setNodes).not.toHaveBeenCalled()
+    const webhookNode = result.current.nodes.find(node => node.id === 'webhook-1') as WebhookFlowNode | undefined
+    expect(webhookNode?.data.webhook_url).toBe('')
     consoleSpy.mockRestore()
   })
 })
diff --git a/web/app/components/workflow/hooks/__tests__/use-edges-interactions.spec.ts b/web/app/components/workflow/hooks/__tests__/use-edges-interactions.spec.ts
index c596be0a4b..6c5433cbab 100644
--- a/web/app/components/workflow/hooks/__tests__/use-edges-interactions.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-edges-interactions.spec.ts
@@ -1,10 +1,9 @@
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
-import { renderWorkflowHook } from '../../__tests__/workflow-test-env'
+import { act, waitFor } from '@testing-library/react'
+import { useEdges, useNodes } from 'reactflow'
+import { createEdge, createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { useEdgesInteractions } from '../use-edges-interactions'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
-
 // useWorkflowHistory uses a debounced save — mock for synchronous assertions
 const mockSaveStateToHistory = vi.fn()
 vi.mock('../use-workflow-history', () => ({
@@ -28,12 +27,67 @@ vi.mock('../../utils', () => ({
   getNodesConnectedSourceOrTargetHandleIdsMap: vi.fn(() => ({})),
 }))
 
-// useNodesSyncDraft is used REAL — via renderWorkflowHook + hooksStoreProps
-function renderEdgesInteractions() {
+type EdgeRuntimeState = {
+  _hovering?: boolean
+  _isBundled?: boolean
+}
+
+type NodeRuntimeState = {
+  selected?: boolean
+  _isBundled?: boolean
+}
+
+const getEdgeRuntimeState = (edge?: { data?: unknown }): EdgeRuntimeState =>
+  (edge?.data ?? {}) as EdgeRuntimeState
+
+const getNodeRuntimeState = (node?: { data?: unknown }): NodeRuntimeState =>
+  (node?.data ?? {}) as NodeRuntimeState
+
+function createFlowNodes() {
+  return [
+    createNode({ id: 'n1' }),
+    createNode({ id: 'n2', position: { x: 100, y: 0 } }),
+  ]
+}
+
+function createFlowEdges() {
+  return [
+    createEdge({
+      id: 'e1',
+      source: 'n1',
+      target: 'n2',
+      sourceHandle: 'branch-a',
+      data: { _hovering: false },
+    }),
+    createEdge({
+      id: 'e2',
+      source: 'n1',
+      target: 'n2',
+      sourceHandle: 'branch-b',
+      data: { _hovering: false },
+    }),
+  ]
+}
+
+function renderEdgesInteractions(options?: {
+  nodes?: ReturnType<typeof createFlowNodes>
+  edges?: ReturnType<typeof createFlowEdges>
+  initialStoreState?: Record<string, unknown>
+}) {
   const mockDoSync = vi.fn().mockResolvedValue(undefined)
+  const { nodes = createFlowNodes(), edges = createFlowEdges(), initialStoreState } = options ?? {}
+
   return {
-    ...renderWorkflowHook(() => useEdgesInteractions(), {
+    ...renderWorkflowFlowHook(() => ({
+      ...useEdgesInteractions(),
+      nodes: useNodes(),
+      edges: useEdges(),
+    }), {
+      nodes,
+      edges,
+      initialStoreState,
       hooksStoreProps: { doSyncWorkflowDraft: mockDoSync },
+      reactFlowProps: { fitView: false },
     }),
     mockDoSync,
   }
@@ -42,73 +96,105 @@ function renderEdgesInteractions() {
 describe('useEdgesInteractions', () => {
   beforeEach(() => {
     vi.clearAllMocks()
-    resetReactFlowMockState()
     mockReadOnly = false
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: {} },
-      { id: 'n2', position: { x: 100, y: 0 }, data: {} },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n1', target: 'n2', sourceHandle: 'branch-a', data: { _hovering: false } },
-      { id: 'e2', source: 'n1', target: 'n2', sourceHandle: 'branch-b', data: { _hovering: false } },
-    ]
   })
 
-  it('handleEdgeEnter should set _hovering to true', () => {
+  it('handleEdgeEnter should set _hovering to true', async () => {
     const { result } = renderEdgesInteractions()
-    result.current.handleEdgeEnter({} as never, rfState.edges[0] as never)
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated.find((e: { id: string }) => e.id === 'e1').data._hovering).toBe(true)
-    expect(updated.find((e: { id: string }) => e.id === 'e2').data._hovering).toBe(false)
+    act(() => {
+      result.current.handleEdgeEnter({} as never, result.current.edges[0] as never)
+    })
+
+    await waitFor(() => {
+      expect(getEdgeRuntimeState(result.current.edges.find(edge => edge.id === 'e1'))._hovering).toBe(true)
+      expect(getEdgeRuntimeState(result.current.edges.find(edge => edge.id === 'e2'))._hovering).toBe(false)
+    })
   })
 
-  it('handleEdgeLeave should set _hovering to false', () => {
-    rfState.edges[0].data._hovering = true
+  it('handleEdgeLeave should set _hovering to false', async () => {
+    const { result } = renderEdgesInteractions({
+      edges: createFlowEdges().map(edge =>
+        edge.id === 'e1'
+          ? createEdge({ ...edge, data: { ...edge.data, _hovering: true } })
+          : edge,
+      ),
+    })
+
+    act(() => {
+      result.current.handleEdgeLeave({} as never, result.current.edges[0] as never)
+    })
+
+    await waitFor(() => {
+      expect(getEdgeRuntimeState(result.current.edges.find(edge => edge.id === 'e1'))._hovering).toBe(false)
+    })
+  })
+
+  it('handleEdgesChange should update edge.selected for select changes', async () => {
     const { result } = renderEdgesInteractions()
-    result.current.handleEdgeLeave({} as never, rfState.edges[0] as never)
 
-    expect(rfState.setEdges.mock.calls[0][0].find((e: { id: string }) => e.id === 'e1').data._hovering).toBe(false)
+    act(() => {
+      result.current.handleEdgesChange([
+        { type: 'select', id: 'e1', selected: true },
+        { type: 'select', id: 'e2', selected: false },
+      ])
+    })
+
+    await waitFor(() => {
+      expect(result.current.edges.find(edge => edge.id === 'e1')?.selected).toBe(true)
+      expect(result.current.edges.find(edge => edge.id === 'e2')?.selected).toBe(false)
+    })
   })
 
-  it('handleEdgesChange should update edge.selected for select changes', () => {
-    const { result } = renderEdgesInteractions()
-    result.current.handleEdgesChange([
-      { type: 'select', id: 'e1', selected: true },
-      { type: 'select', id: 'e2', selected: false },
-    ])
-
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated.find((e: { id: string }) => e.id === 'e1').selected).toBe(true)
-    expect(updated.find((e: { id: string }) => e.id === 'e2').selected).toBe(false)
-  })
-
-  it('handleEdgeContextMenu should select the clicked edge and open edgeMenu', () => {
+  it('handleEdgeContextMenu should select the clicked edge and open edgeMenu', async () => {
     const preventDefault = vi.fn()
-    const { result, store } = renderEdgesInteractions()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { selected: true, _isBundled: true }, selected: true } as typeof rfState.nodes[number] & { selected: boolean },
-      { id: 'n2', position: { x: 100, y: 0 }, data: { _isBundled: true } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n1', target: 'n2', sourceHandle: 'branch-a', data: { _hovering: false, _isBundled: true } },
-      { id: 'e2', source: 'n1', target: 'n2', sourceHandle: 'branch-b', data: { _hovering: false, _isBundled: true } },
-    ]
+    const { result, store } = renderEdgesInteractions({
+      nodes: [
+        createNode({
+          id: 'n1',
+          data: { selected: true, _isBundled: true },
+          selected: true,
+        }),
+        createNode({
+          id: 'n2',
+          position: { x: 100, y: 0 },
+          data: { _isBundled: true },
+        }),
+      ],
+      edges: [
+        createEdge({
+          id: 'e1',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-a',
+          data: { _hovering: false, _isBundled: true },
+        }),
+        createEdge({
+          id: 'e2',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-b',
+          data: { _hovering: false, _isBundled: true },
+        }),
+      ],
+    })
 
-    result.current.handleEdgeContextMenu({
-      preventDefault,
-      clientX: 320,
-      clientY: 180,
-    } as never, rfState.edges[1] as never)
+    act(() => {
+      result.current.handleEdgeContextMenu({
+        preventDefault,
+        clientX: 320,
+        clientY: 180,
+      } as never, result.current.edges[1] as never)
+    })
 
     expect(preventDefault).toHaveBeenCalled()
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated.find((e: { id: string }) => e.id === 'e1').selected).toBe(false)
-    expect(updated.find((e: { id: string }) => e.id === 'e2').selected).toBe(true)
-    expect(updated.every((e: { data: { _isBundled?: boolean } }) => !e.data._isBundled)).toBe(true)
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes.every((node: { data: { selected?: boolean, _isBundled?: boolean }, selected?: boolean }) => !node.data.selected && !node.selected && !node.data._isBundled)).toBe(true)
+    await waitFor(() => {
+      expect(result.current.edges.find(edge => edge.id === 'e1')?.selected).toBe(false)
+      expect(result.current.edges.find(edge => edge.id === 'e2')?.selected).toBe(true)
+      expect(result.current.edges.every(edge => !getEdgeRuntimeState(edge)._isBundled)).toBe(true)
+      expect(result.current.nodes.every(node => !getNodeRuntimeState(node).selected && !node.selected && !getNodeRuntimeState(node)._isBundled)).toBe(true)
+    })
 
     expect(store.getState().edgeMenu).toEqual({
       clientX: 320,
@@ -120,70 +206,133 @@ describe('useEdgesInteractions', () => {
     expect(store.getState().selectionMenu).toBeUndefined()
   })
 
-  it('handleEdgeDelete should remove selected edge and trigger sync + history', () => {
-    ;(rfState.edges[0] as Record<string, unknown>).selected = true
-    const { result, store } = renderEdgesInteractions()
-    store.setState({
-      edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
+  it('handleEdgeDelete should remove selected edge and trigger sync + history', async () => {
+    const { result, store } = renderEdgesInteractions({
+      edges: [
+        createEdge({
+          id: 'e1',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-a',
+          selected: true,
+          data: { _hovering: false },
+        }),
+        createEdge({
+          id: 'e2',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-b',
+          data: { _hovering: false },
+        }),
+      ],
+      initialStoreState: {
+        edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
+      },
     })
 
-    result.current.handleEdgeDelete()
+    act(() => {
+      result.current.handleEdgeDelete()
+    })
+
+    await waitFor(() => {
+      expect(result.current.edges).toHaveLength(1)
+      expect(result.current.edges[0]?.id).toBe('e2')
+    })
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated).toHaveLength(1)
-    expect(updated[0].id).toBe('e2')
     expect(store.getState().edgeMenu).toBeUndefined()
     expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
   })
 
   it('handleEdgeDelete should do nothing when no edge is selected', () => {
     const { result } = renderEdgesInteractions()
-    result.current.handleEdgeDelete()
-    expect(rfState.setEdges).not.toHaveBeenCalled()
-  })
 
-  it('handleEdgeDeleteById should remove the requested edge even when another edge is selected', () => {
-    ;(rfState.edges[0] as Record<string, unknown>).selected = true
-    const { result, store } = renderEdgesInteractions()
-    store.setState({
-      edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e2' },
+    act(() => {
+      result.current.handleEdgeDelete()
     })
 
-    result.current.handleEdgeDeleteById('e2')
+    expect(result.current.edges).toHaveLength(2)
+  })
+
+  it('handleEdgeDeleteById should remove the requested edge even when another edge is selected', async () => {
+    const { result, store } = renderEdgesInteractions({
+      edges: [
+        createEdge({
+          id: 'e1',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-a',
+          selected: true,
+          data: { _hovering: false },
+        }),
+        createEdge({
+          id: 'e2',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'branch-b',
+          data: { _hovering: false },
+        }),
+      ],
+      initialStoreState: {
+        edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e2' },
+      },
+    })
+
+    act(() => {
+      result.current.handleEdgeDeleteById('e2')
+    })
+
+    await waitFor(() => {
+      expect(result.current.edges).toHaveLength(1)
+      expect(result.current.edges[0]?.id).toBe('e1')
+      expect(result.current.edges[0]?.selected).toBe(true)
+    })
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated).toHaveLength(1)
-    expect(updated[0].id).toBe('e1')
-    expect(updated[0].selected).toBe(true)
     expect(store.getState().edgeMenu).toBeUndefined()
     expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDelete')
   })
 
-  it('handleEdgeDeleteByDeleteBranch should remove edges for the given branch', () => {
-    const { result, store } = renderEdgesInteractions()
-    store.setState({
-      edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
+  it('handleEdgeDeleteByDeleteBranch should remove edges for the given branch', async () => {
+    const { result, store } = renderEdgesInteractions({
+      initialStoreState: {
+        edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
+      },
+    })
+
+    act(() => {
+      result.current.handleEdgeDeleteByDeleteBranch('n1', 'branch-a')
+    })
+
+    await waitFor(() => {
+      expect(result.current.edges).toHaveLength(1)
+      expect(result.current.edges[0]?.id).toBe('e2')
     })
-    result.current.handleEdgeDeleteByDeleteBranch('n1', 'branch-a')
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated).toHaveLength(1)
-    expect(updated[0].id).toBe('e2')
     expect(store.getState().edgeMenu).toBeUndefined()
     expect(mockSaveStateToHistory).toHaveBeenCalledWith('EdgeDeleteByDeleteBranch')
   })
 
-  it('handleEdgeSourceHandleChange should update sourceHandle and edge ID', () => {
-    rfState.edges = [
-      { id: 'n1-old-handle-n2-target', source: 'n1', target: 'n2', sourceHandle: 'old-handle', targetHandle: 'target', data: {} } as typeof rfState.edges[0],
-    ]
+  it('handleEdgeSourceHandleChange should update sourceHandle and edge ID', async () => {
+    const { result } = renderEdgesInteractions({
+      edges: [
+        createEdge({
+          id: 'n1-old-handle-n2-target',
+          source: 'n1',
+          target: 'n2',
+          sourceHandle: 'old-handle',
+          targetHandle: 'target',
+          data: {},
+        }),
+      ],
+    })
 
-    const { result } = renderEdgesInteractions()
-    result.current.handleEdgeSourceHandleChange('n1', 'old-handle', 'new-handle')
+    act(() => {
+      result.current.handleEdgeSourceHandleChange('n1', 'old-handle', 'new-handle')
+    })
 
-    const updated = rfState.setEdges.mock.calls[0][0]
-    expect(updated[0].sourceHandle).toBe('new-handle')
-    expect(updated[0].id).toBe('n1-new-handle-n2-target')
+    await waitFor(() => {
+      expect(result.current.edges[0]?.sourceHandle).toBe('new-handle')
+      expect(result.current.edges[0]?.id).toBe('n1-new-handle-n2-target')
+    })
   })
 
   describe('read-only mode', () => {
@@ -193,38 +342,75 @@ describe('useEdgesInteractions', () => {
 
     it('handleEdgeEnter should do nothing', () => {
       const { result } = renderEdgesInteractions()
-      result.current.handleEdgeEnter({} as never, rfState.edges[0] as never)
-      expect(rfState.setEdges).not.toHaveBeenCalled()
+
+      act(() => {
+        result.current.handleEdgeEnter({} as never, result.current.edges[0] as never)
+      })
+
+      expect(getEdgeRuntimeState(result.current.edges[0])._hovering).toBe(false)
     })
 
     it('handleEdgeDelete should do nothing', () => {
-      ;(rfState.edges[0] as Record<string, unknown>).selected = true
-      const { result } = renderEdgesInteractions()
-      result.current.handleEdgeDelete()
-      expect(rfState.setEdges).not.toHaveBeenCalled()
+      const { result } = renderEdgesInteractions({
+        edges: [
+          createEdge({
+            id: 'e1',
+            source: 'n1',
+            target: 'n2',
+            sourceHandle: 'branch-a',
+            selected: true,
+            data: { _hovering: false },
+          }),
+          createEdge({
+            id: 'e2',
+            source: 'n1',
+            target: 'n2',
+            sourceHandle: 'branch-b',
+            data: { _hovering: false },
+          }),
+        ],
+      })
+
+      act(() => {
+        result.current.handleEdgeDelete()
+      })
+
+      expect(result.current.edges).toHaveLength(2)
     })
 
     it('handleEdgeDeleteById should do nothing', () => {
       const { result } = renderEdgesInteractions()
-      result.current.handleEdgeDeleteById('e1')
-      expect(rfState.setEdges).not.toHaveBeenCalled()
+
+      act(() => {
+        result.current.handleEdgeDeleteById('e1')
+      })
+
+      expect(result.current.edges).toHaveLength(2)
     })
 
     it('handleEdgeContextMenu should do nothing', () => {
       const { result, store } = renderEdgesInteractions()
-      result.current.handleEdgeContextMenu({
-        preventDefault: vi.fn(),
-        clientX: 200,
-        clientY: 120,
-      } as never, rfState.edges[0] as never)
-      expect(rfState.setEdges).not.toHaveBeenCalled()
+
+      act(() => {
+        result.current.handleEdgeContextMenu({
+          preventDefault: vi.fn(),
+          clientX: 200,
+          clientY: 120,
+        } as never, result.current.edges[0] as never)
+      })
+
+      expect(result.current.edges.every(edge => !edge.selected)).toBe(true)
       expect(store.getState().edgeMenu).toBeUndefined()
     })
 
     it('handleEdgeDeleteByDeleteBranch should do nothing', () => {
       const { result } = renderEdgesInteractions()
-      result.current.handleEdgeDeleteByDeleteBranch('n1', 'branch-a')
-      expect(rfState.setEdges).not.toHaveBeenCalled()
+
+      act(() => {
+        result.current.handleEdgeDeleteByDeleteBranch('n1', 'branch-a')
+      })
+
+      expect(result.current.edges).toHaveLength(2)
     })
   })
 })
diff --git a/web/app/components/workflow/hooks/__tests__/use-selection-interactions.spec.ts b/web/app/components/workflow/hooks/__tests__/use-selection-interactions.spec.ts
index 4c4eb010e6..31d5d82475 100644
--- a/web/app/components/workflow/hooks/__tests__/use-selection-interactions.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-selection-interactions.spec.ts
@@ -1,58 +1,52 @@
 import type * as React from 'react'
-import type { Node, OnSelectionChangeParams } from 'reactflow'
-import type { MockEdge, MockNode } from '../../__tests__/reactflow-mock-state'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
-import { renderWorkflowHook } from '../../__tests__/workflow-test-env'
+import type { OnSelectionChangeParams } from 'reactflow'
+import { act, waitFor } from '@testing-library/react'
+import { useEdges, useNodes, useStoreApi } from 'reactflow'
+import { createEdge, createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { useSelectionInteractions } from '../use-selection-interactions'
 
-const rfStoreExtra = vi.hoisted(() => ({
-  userSelectionRect: null as { x: number, y: number, width: number, height: number } | null,
-  userSelectionActive: false,
-  resetSelectedElements: vi.fn(),
-  setState: vi.fn(),
-}))
+type BundledState = {
+  _isBundled?: boolean
+}
 
-vi.mock('reactflow', async () => {
-  const mod = await import('../../__tests__/reactflow-mock-state')
-  const base = mod.createReactFlowModuleMock()
-  return {
-    ...base,
-    useStoreApi: vi.fn(() => ({
-      getState: () => ({
-        getNodes: () => mod.rfState.nodes,
-        setNodes: mod.rfState.setNodes,
-        edges: mod.rfState.edges,
-        setEdges: mod.rfState.setEdges,
-        transform: mod.rfState.transform,
-        userSelectionRect: rfStoreExtra.userSelectionRect,
-        userSelectionActive: rfStoreExtra.userSelectionActive,
-        resetSelectedElements: rfStoreExtra.resetSelectedElements,
-      }),
-      setState: rfStoreExtra.setState,
-      subscribe: vi.fn().mockReturnValue(vi.fn()),
-    })),
-  }
-})
+const getBundledState = (item?: { data?: unknown }): BundledState =>
+  (item?.data ?? {}) as BundledState
+
+function createFlowNodes() {
+  return [
+    createNode({ id: 'n1', data: { _isBundled: true } }),
+    createNode({ id: 'n2', position: { x: 100, y: 100 }, data: { _isBundled: true } }),
+    createNode({ id: 'n3', position: { x: 200, y: 200 }, data: {} }),
+  ]
+}
+
+function createFlowEdges() {
+  return [
+    createEdge({ id: 'e1', source: 'n1', target: 'n2', data: { _isBundled: true } }),
+    createEdge({ id: 'e2', source: 'n2', target: 'n3', data: {} }),
+  ]
+}
+
+function renderSelectionInteractions(initialStoreState?: Record<string, unknown>) {
+  return renderWorkflowFlowHook(() => ({
+    ...useSelectionInteractions(),
+    nodes: useNodes(),
+    edges: useEdges(),
+    reactFlowStore: useStoreApi(),
+  }), {
+    nodes: createFlowNodes(),
+    edges: createFlowEdges(),
+    reactFlowProps: { fitView: false },
+    initialStoreState,
+  })
+}
 
 describe('useSelectionInteractions', () => {
   let container: HTMLDivElement
 
   beforeEach(() => {
-    resetReactFlowMockState()
-    rfStoreExtra.userSelectionRect = null
-    rfStoreExtra.userSelectionActive = false
-    rfStoreExtra.resetSelectedElements = vi.fn()
-    rfStoreExtra.setState.mockReset()
-
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _isBundled: true } },
-      { id: 'n2', position: { x: 100, y: 100 }, data: { _isBundled: true } },
-      { id: 'n3', position: { x: 200, y: 200 }, data: {} },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n1', target: 'n2', data: { _isBundled: true } },
-      { id: 'e2', source: 'n2', target: 'n3', data: {} },
-    ]
+    vi.clearAllMocks()
 
     container = document.createElement('div')
     container.id = 'workflow-container'
@@ -73,110 +67,137 @@ describe('useSelectionInteractions', () => {
     container.remove()
   })
 
-  it('handleSelectionStart should clear _isBundled from all nodes and edges', () => {
-    const { result } = renderWorkflowHook(() => useSelectionInteractions())
+  it('handleSelectionStart should clear _isBundled from all nodes and edges', async () => {
+    const { result } = renderSelectionInteractions()
 
-    result.current.handleSelectionStart()
+    act(() => {
+      result.current.handleSelectionStart()
+    })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0] as MockNode[]
-    expect(updatedNodes.every(n => !n.data._isBundled)).toBe(true)
-
-    const updatedEdges = rfState.setEdges.mock.calls[0][0] as MockEdge[]
-    expect(updatedEdges.every(e => !e.data._isBundled)).toBe(true)
+    await waitFor(() => {
+      expect(result.current.nodes.every(node => !getBundledState(node)._isBundled)).toBe(true)
+      expect(result.current.edges.every(edge => !getBundledState(edge)._isBundled)).toBe(true)
+    })
   })
 
-  it('handleSelectionChange should mark selected nodes as bundled', () => {
-    rfStoreExtra.userSelectionRect = { x: 0, y: 0, width: 100, height: 100 }
+  it('handleSelectionChange should mark selected nodes as bundled', async () => {
+    const { result } = renderSelectionInteractions()
 
-    const { result } = renderWorkflowHook(() => useSelectionInteractions())
+    act(() => {
+      result.current.reactFlowStore.setState({
+        userSelectionRect: { x: 0, y: 0, width: 100, height: 100 },
+      } as never)
+    })
 
-    result.current.handleSelectionChange({
-      nodes: [{ id: 'n1' }, { id: 'n3' }],
-      edges: [],
-    } as unknown as OnSelectionChangeParams)
+    act(() => {
+      result.current.handleSelectionChange({
+        nodes: [{ id: 'n1' }, { id: 'n3' }],
+        edges: [],
+      } as unknown as OnSelectionChangeParams)
+    })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0] as MockNode[]
-    expect(updatedNodes.find(n => n.id === 'n1')!.data._isBundled).toBe(true)
-    expect(updatedNodes.find(n => n.id === 'n2')!.data._isBundled).toBe(false)
-    expect(updatedNodes.find(n => n.id === 'n3')!.data._isBundled).toBe(true)
+    await waitFor(() => {
+      expect(getBundledState(result.current.nodes.find(node => node.id === 'n1'))._isBundled).toBe(true)
+      expect(getBundledState(result.current.nodes.find(node => node.id === 'n2'))._isBundled).toBe(false)
+      expect(getBundledState(result.current.nodes.find(node => node.id === 'n3'))._isBundled).toBe(true)
+    })
   })
 
-  it('handleSelectionChange should mark selected edges', () => {
-    rfStoreExtra.userSelectionRect = { x: 0, y: 0, width: 100, height: 100 }
+  it('handleSelectionChange should mark selected edges', async () => {
+    const { result } = renderSelectionInteractions()
 
-    const { result } = renderWorkflowHook(() => useSelectionInteractions())
+    act(() => {
+      result.current.reactFlowStore.setState({
+        userSelectionRect: { x: 0, y: 0, width: 100, height: 100 },
+      } as never)
+    })
 
-    result.current.handleSelectionChange({
-      nodes: [],
-      edges: [{ id: 'e1' }],
-    } as unknown as OnSelectionChangeParams)
+    act(() => {
+      result.current.handleSelectionChange({
+        nodes: [],
+        edges: [{ id: 'e1' }],
+      } as unknown as OnSelectionChangeParams)
+    })
 
-    const updatedEdges = rfState.setEdges.mock.calls[0][0] as MockEdge[]
-    expect(updatedEdges.find(e => e.id === 'e1')!.data._isBundled).toBe(true)
-    expect(updatedEdges.find(e => e.id === 'e2')!.data._isBundled).toBe(false)
+    await waitFor(() => {
+      expect(getBundledState(result.current.edges.find(edge => edge.id === 'e1'))._isBundled).toBe(true)
+      expect(getBundledState(result.current.edges.find(edge => edge.id === 'e2'))._isBundled).toBe(false)
+    })
   })
 
-  it('handleSelectionDrag should sync node positions', () => {
-    const { result, store } = renderWorkflowHook(() => useSelectionInteractions())
-
+  it('handleSelectionDrag should sync node positions', async () => {
+    const { result, store } = renderSelectionInteractions()
     const draggedNodes = [
       { id: 'n1', position: { x: 50, y: 60 }, data: {} },
-    ] as unknown as Node[]
+    ] as never
 
-    result.current.handleSelectionDrag({} as unknown as React.MouseEvent, draggedNodes)
+    act(() => {
+      result.current.handleSelectionDrag({} as unknown as React.MouseEvent, draggedNodes)
+    })
 
     expect(store.getState().nodeAnimation).toBe(false)
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0] as MockNode[]
-    expect(updatedNodes.find(n => n.id === 'n1')!.position).toEqual({ x: 50, y: 60 })
-    expect(updatedNodes.find(n => n.id === 'n2')!.position).toEqual({ x: 100, y: 100 })
+    await waitFor(() => {
+      expect(result.current.nodes.find(node => node.id === 'n1')?.position).toEqual({ x: 50, y: 60 })
+      expect(result.current.nodes.find(node => node.id === 'n2')?.position).toEqual({ x: 100, y: 100 })
+    })
   })
 
-  it('handleSelectionCancel should clear all selection state', () => {
-    const { result } = renderWorkflowHook(() => useSelectionInteractions())
+  it('handleSelectionCancel should clear all selection state', async () => {
+    const { result } = renderSelectionInteractions()
 
-    result.current.handleSelectionCancel()
-
-    expect(rfStoreExtra.setState).toHaveBeenCalledWith({
-      userSelectionRect: null,
-      userSelectionActive: true,
+    act(() => {
+      result.current.reactFlowStore.setState({
+        userSelectionRect: { x: 0, y: 0, width: 100, height: 100 },
+        userSelectionActive: false,
+      } as never)
     })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0] as MockNode[]
-    expect(updatedNodes.every(n => !n.data._isBundled)).toBe(true)
+    act(() => {
+      result.current.handleSelectionCancel()
+    })
 
-    const updatedEdges = rfState.setEdges.mock.calls[0][0] as MockEdge[]
-    expect(updatedEdges.every(e => !e.data._isBundled)).toBe(true)
+    expect(result.current.reactFlowStore.getState().userSelectionRect).toBeNull()
+    expect(result.current.reactFlowStore.getState().userSelectionActive).toBe(true)
+
+    await waitFor(() => {
+      expect(result.current.nodes.every(node => !getBundledState(node)._isBundled)).toBe(true)
+      expect(result.current.edges.every(edge => !getBundledState(edge)._isBundled)).toBe(true)
+    })
   })
 
   it('handleSelectionContextMenu should set menu only when clicking on selection rect', () => {
-    const { result, store } = renderWorkflowHook(() => useSelectionInteractions(), {
-      initialStoreState: {
-        nodeMenu: { top: 10, left: 20, nodeId: 'n1' },
-        panelMenu: { top: 30, left: 40 },
-        edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
-      },
+    const { result, store } = renderSelectionInteractions({
+      nodeMenu: { top: 10, left: 20, nodeId: 'n1' },
+      panelMenu: { top: 30, left: 40 },
+      edgeMenu: { clientX: 320, clientY: 180, edgeId: 'e1' },
     })
 
     const wrongTarget = document.createElement('div')
     wrongTarget.classList.add('some-other-class')
-    result.current.handleSelectionContextMenu({
-      target: wrongTarget,
-      preventDefault: vi.fn(),
-      clientX: 300,
-      clientY: 200,
-    } as unknown as React.MouseEvent)
+
+    act(() => {
+      result.current.handleSelectionContextMenu({
+        target: wrongTarget,
+        preventDefault: vi.fn(),
+        clientX: 300,
+        clientY: 200,
+      } as unknown as React.MouseEvent)
+    })
 
     expect(store.getState().selectionMenu).toBeUndefined()
 
     const correctTarget = document.createElement('div')
     correctTarget.classList.add('react-flow__nodesselection-rect')
-    result.current.handleSelectionContextMenu({
-      target: correctTarget,
-      preventDefault: vi.fn(),
-      clientX: 300,
-      clientY: 200,
-    } as unknown as React.MouseEvent)
+
+    act(() => {
+      result.current.handleSelectionContextMenu({
+        target: correctTarget,
+        preventDefault: vi.fn(),
+        clientX: 300,
+        clientY: 200,
+      } as unknown as React.MouseEvent)
+    })
 
     expect(store.getState().selectionMenu).toEqual({
       top: 150,
@@ -188,11 +209,13 @@ describe('useSelectionInteractions', () => {
   })
 
   it('handleSelectionContextmenuCancel should clear selectionMenu', () => {
-    const { result, store } = renderWorkflowHook(() => useSelectionInteractions(), {
-      initialStoreState: { selectionMenu: { top: 50, left: 60 } },
+    const { result, store } = renderSelectionInteractions({
+      selectionMenu: { top: 50, left: 60 },
     })
 
-    result.current.handleSelectionContextmenuCancel()
+    act(() => {
+      result.current.handleSelectionContextmenuCancel()
+    })
 
     expect(store.getState().selectionMenu).toBeUndefined()
   })
diff --git a/web/app/components/workflow/hooks/__tests__/use-without-sync-hooks.spec.ts b/web/app/components/workflow/hooks/__tests__/use-without-sync-hooks.spec.ts
index 9544c401cf..2d40028226 100644
--- a/web/app/components/workflow/hooks/__tests__/use-without-sync-hooks.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-without-sync-hooks.spec.ts
@@ -1,130 +1,209 @@
-import { renderHook } from '@testing-library/react'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
+import { act, waitFor } from '@testing-library/react'
+import { useEdges, useNodes } from 'reactflow'
+import { createEdge, createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { NodeRunningStatus } from '../../types'
 import { useEdgesInteractionsWithoutSync } from '../use-edges-interactions-without-sync'
 import { useNodesInteractionsWithoutSync } from '../use-nodes-interactions-without-sync'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
+type EdgeRuntimeState = {
+  _sourceRunningStatus?: NodeRunningStatus
+  _targetRunningStatus?: NodeRunningStatus
+  _waitingRun?: boolean
+}
+
+type NodeRuntimeState = {
+  _runningStatus?: NodeRunningStatus
+  _waitingRun?: boolean
+}
+
+const getEdgeRuntimeState = (edge?: { data?: unknown }): EdgeRuntimeState =>
+  (edge?.data ?? {}) as EdgeRuntimeState
+
+const getNodeRuntimeState = (node?: { data?: unknown }): NodeRuntimeState =>
+  (node?.data ?? {}) as NodeRuntimeState
 
 describe('useEdgesInteractionsWithoutSync', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.edges = [
-      { id: 'e1', source: 'a', target: 'b', data: { _sourceRunningStatus: 'running', _targetRunningStatus: 'running', _waitingRun: true } },
-      { id: 'e2', source: 'b', target: 'c', data: { _sourceRunningStatus: 'succeeded', _targetRunningStatus: undefined, _waitingRun: false } },
-    ]
-  })
+  const createFlowNodes = () => [
+    createNode({ id: 'a' }),
+    createNode({ id: 'b' }),
+    createNode({ id: 'c' }),
+  ]
+  const createFlowEdges = () => [
+    createEdge({
+      id: 'e1',
+      source: 'a',
+      target: 'b',
+      data: {
+        _sourceRunningStatus: NodeRunningStatus.Running,
+        _targetRunningStatus: NodeRunningStatus.Running,
+        _waitingRun: true,
+      },
+    }),
+    createEdge({
+      id: 'e2',
+      source: 'b',
+      target: 'c',
+      data: {
+        _sourceRunningStatus: NodeRunningStatus.Succeeded,
+        _targetRunningStatus: undefined,
+        _waitingRun: false,
+      },
+    }),
+  ]
+
+  const renderEdgesInteractionsHook = () =>
+    renderWorkflowFlowHook(() => ({
+      ...useEdgesInteractionsWithoutSync(),
+      edges: useEdges(),
+    }), {
+      nodes: createFlowNodes(),
+      edges: createFlowEdges(),
+    })
 
   it('should clear running status and waitingRun on all edges', () => {
-    const { result } = renderHook(() => useEdgesInteractionsWithoutSync())
+    const { result } = renderEdgesInteractionsHook()
 
-    result.current.handleEdgeCancelRunningStatus()
+    act(() => {
+      result.current.handleEdgeCancelRunningStatus()
+    })
 
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
-    const updated = rfState.setEdges.mock.calls[0][0]
-    for (const edge of updated) {
-      expect(edge.data._sourceRunningStatus).toBeUndefined()
-      expect(edge.data._targetRunningStatus).toBeUndefined()
-      expect(edge.data._waitingRun).toBe(false)
-    }
+    return waitFor(() => {
+      result.current.edges.forEach((edge) => {
+        const edgeState = getEdgeRuntimeState(edge)
+        expect(edgeState._sourceRunningStatus).toBeUndefined()
+        expect(edgeState._targetRunningStatus).toBeUndefined()
+        expect(edgeState._waitingRun).toBe(false)
+      })
+    })
   })
 
   it('should not mutate original edges', () => {
-    const originalData = { ...rfState.edges[0].data }
-    const { result } = renderHook(() => useEdgesInteractionsWithoutSync())
+    const edges = createFlowEdges()
+    const originalData = { ...getEdgeRuntimeState(edges[0]) }
+    const { result } = renderWorkflowFlowHook(() => ({
+      ...useEdgesInteractionsWithoutSync(),
+      edges: useEdges(),
+    }), {
+      nodes: createFlowNodes(),
+      edges,
+    })
 
-    result.current.handleEdgeCancelRunningStatus()
+    act(() => {
+      result.current.handleEdgeCancelRunningStatus()
+    })
 
-    expect(rfState.edges[0].data._sourceRunningStatus).toBe(originalData._sourceRunningStatus)
+    expect(getEdgeRuntimeState(edges[0])._sourceRunningStatus).toBe(originalData._sourceRunningStatus)
   })
 })
 
 describe('useNodesInteractionsWithoutSync', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running, _waitingRun: true } },
-      { id: 'n2', position: { x: 100, y: 0 }, data: { _runningStatus: NodeRunningStatus.Succeeded, _waitingRun: false } },
-      { id: 'n3', position: { x: 200, y: 0 }, data: { _runningStatus: NodeRunningStatus.Failed, _waitingRun: true } },
-    ]
-  })
+  const createFlowNodes = () => [
+    createNode({ id: 'n1', data: { _runningStatus: NodeRunningStatus.Running, _waitingRun: true } }),
+    createNode({ id: 'n2', position: { x: 100, y: 0 }, data: { _runningStatus: NodeRunningStatus.Succeeded, _waitingRun: false } }),
+    createNode({ id: 'n3', position: { x: 200, y: 0 }, data: { _runningStatus: NodeRunningStatus.Failed, _waitingRun: true } }),
+  ]
+
+  const renderNodesInteractionsHook = () =>
+    renderWorkflowFlowHook(() => ({
+      ...useNodesInteractionsWithoutSync(),
+      nodes: useNodes(),
+    }), {
+      nodes: createFlowNodes(),
+      edges: [],
+    })
 
   describe('handleNodeCancelRunningStatus', () => {
-    it('should clear _runningStatus and _waitingRun on all nodes', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should clear _runningStatus and _waitingRun on all nodes', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleNodeCancelRunningStatus()
+      act(() => {
+        result.current.handleNodeCancelRunningStatus()
+      })
 
-      expect(rfState.setNodes).toHaveBeenCalledOnce()
-      const updated = rfState.setNodes.mock.calls[0][0]
-      for (const node of updated) {
-        expect(node.data._runningStatus).toBeUndefined()
-        expect(node.data._waitingRun).toBe(false)
-      }
+      await waitFor(() => {
+        result.current.nodes.forEach((node) => {
+          const nodeState = getNodeRuntimeState(node)
+          expect(nodeState._runningStatus).toBeUndefined()
+          expect(nodeState._waitingRun).toBe(false)
+        })
+      })
     })
   })
 
   describe('handleCancelAllNodeSuccessStatus', () => {
-    it('should clear _runningStatus only for Succeeded nodes', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should clear _runningStatus only for Succeeded nodes', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleCancelAllNodeSuccessStatus()
+      act(() => {
+        result.current.handleCancelAllNodeSuccessStatus()
+      })
 
-      expect(rfState.setNodes).toHaveBeenCalledOnce()
-      const updated = rfState.setNodes.mock.calls[0][0]
-      const n1 = updated.find((n: { id: string }) => n.id === 'n1')
-      const n2 = updated.find((n: { id: string }) => n.id === 'n2')
-      const n3 = updated.find((n: { id: string }) => n.id === 'n3')
+      await waitFor(() => {
+        const n1 = result.current.nodes.find(node => node.id === 'n1')
+        const n2 = result.current.nodes.find(node => node.id === 'n2')
+        const n3 = result.current.nodes.find(node => node.id === 'n3')
 
-      expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
-      expect(n2.data._runningStatus).toBeUndefined()
-      expect(n3.data._runningStatus).toBe(NodeRunningStatus.Failed)
+        expect(getNodeRuntimeState(n1)._runningStatus).toBe(NodeRunningStatus.Running)
+        expect(getNodeRuntimeState(n2)._runningStatus).toBeUndefined()
+        expect(getNodeRuntimeState(n3)._runningStatus).toBe(NodeRunningStatus.Failed)
+      })
     })
 
-    it('should not modify _waitingRun', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should not modify _waitingRun', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleCancelAllNodeSuccessStatus()
+      act(() => {
+        result.current.handleCancelAllNodeSuccessStatus()
+      })
 
-      const updated = rfState.setNodes.mock.calls[0][0]
-      expect(updated.find((n: { id: string }) => n.id === 'n1').data._waitingRun).toBe(true)
-      expect(updated.find((n: { id: string }) => n.id === 'n3').data._waitingRun).toBe(true)
+      await waitFor(() => {
+        expect(getNodeRuntimeState(result.current.nodes.find(node => node.id === 'n1'))._waitingRun).toBe(true)
+        expect(getNodeRuntimeState(result.current.nodes.find(node => node.id === 'n3'))._waitingRun).toBe(true)
+      })
     })
   })
 
   describe('handleCancelNodeSuccessStatus', () => {
-    it('should clear _runningStatus and _waitingRun for the specified Succeeded node', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should clear _runningStatus and _waitingRun for the specified Succeeded node', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleCancelNodeSuccessStatus('n2')
+      act(() => {
+        result.current.handleCancelNodeSuccessStatus('n2')
+      })
 
-      expect(rfState.setNodes).toHaveBeenCalledOnce()
-      const updated = rfState.setNodes.mock.calls[0][0]
-      const n2 = updated.find((n: { id: string }) => n.id === 'n2')
-      expect(n2.data._runningStatus).toBeUndefined()
-      expect(n2.data._waitingRun).toBe(false)
+      await waitFor(() => {
+        const n2 = result.current.nodes.find(node => node.id === 'n2')
+        expect(getNodeRuntimeState(n2)._runningStatus).toBeUndefined()
+        expect(getNodeRuntimeState(n2)._waitingRun).toBe(false)
+      })
     })
 
-    it('should not modify nodes that are not Succeeded', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should not modify nodes that are not Succeeded', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleCancelNodeSuccessStatus('n1')
+      act(() => {
+        result.current.handleCancelNodeSuccessStatus('n1')
+      })
 
-      const updated = rfState.setNodes.mock.calls[0][0]
-      const n1 = updated.find((n: { id: string }) => n.id === 'n1')
-      expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
-      expect(n1.data._waitingRun).toBe(true)
+      await waitFor(() => {
+        const n1 = result.current.nodes.find(node => node.id === 'n1')
+        expect(getNodeRuntimeState(n1)._runningStatus).toBe(NodeRunningStatus.Running)
+        expect(getNodeRuntimeState(n1)._waitingRun).toBe(true)
+      })
     })
 
-    it('should not modify other nodes', () => {
-      const { result } = renderHook(() => useNodesInteractionsWithoutSync())
+    it('should not modify other nodes', async () => {
+      const { result } = renderNodesInteractionsHook()
 
-      result.current.handleCancelNodeSuccessStatus('n2')
+      act(() => {
+        result.current.handleCancelNodeSuccessStatus('n2')
+      })
 
-      const updated = rfState.setNodes.mock.calls[0][0]
-      const n1 = updated.find((n: { id: string }) => n.id === 'n1')
-      expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
+      await waitFor(() => {
+        const n1 = result.current.nodes.find(node => node.id === 'n1')
+        expect(getNodeRuntimeState(n1)._runningStatus).toBe(NodeRunningStatus.Running)
+      })
     })
   })
 })
diff --git a/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-store.spec.ts b/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-store.spec.ts
index e40efd3819..1c8a0764d1 100644
--- a/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-store.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-store.spec.ts
@@ -7,8 +7,10 @@ import type {
   NodeFinishedResponse,
   WorkflowStartedResponse,
 } from '@/types/workflow'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
-import { baseRunningData, renderWorkflowHook } from '../../__tests__/workflow-test-env'
+import { act, waitFor } from '@testing-library/react'
+import { useEdges, useNodes } from 'reactflow'
+import { createEdge, createNode } from '../../__tests__/fixtures'
+import { baseRunningData, renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { DEFAULT_ITER_TIMES } from '../../constants'
 import { NodeRunningStatus, WorkflowRunningStatus } from '../../types'
 import { useWorkflowNodeFinished } from '../use-workflow-run-event/use-workflow-node-finished'
@@ -19,44 +21,100 @@ import { useWorkflowNodeLoopNext } from '../use-workflow-run-event/use-workflow-
 import { useWorkflowNodeRetry } from '../use-workflow-run-event/use-workflow-node-retry'
 import { useWorkflowStarted } from '../use-workflow-run-event/use-workflow-started'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
+type NodeRuntimeState = {
+  _waitingRun?: boolean
+  _runningStatus?: NodeRunningStatus
+  _retryIndex?: number
+  _iterationIndex?: number
+  _loopIndex?: number
+  _runningBranchId?: string
+}
+
+type EdgeRuntimeState = {
+  _sourceRunningStatus?: NodeRunningStatus
+  _targetRunningStatus?: NodeRunningStatus
+  _waitingRun?: boolean
+}
+
+const getNodeRuntimeState = (node?: { data?: unknown }): NodeRuntimeState =>
+  (node?.data ?? {}) as NodeRuntimeState
+
+const getEdgeRuntimeState = (edge?: { data?: unknown }): EdgeRuntimeState =>
+  (edge?.data ?? {}) as EdgeRuntimeState
+
+function createRunNodes() {
+  return [
+    createNode({
+      id: 'n1',
+      width: 200,
+      height: 80,
+      data: { _waitingRun: false },
+    }),
+  ]
+}
+
+function createRunEdges() {
+  return [
+    createEdge({
+      id: 'e1',
+      source: 'n0',
+      target: 'n1',
+      data: {},
+    }),
+  ]
+}
+
+function renderRunEventHook<T extends Record<string, unknown>>(
+  useHook: () => T,
+  options?: {
+    nodes?: ReturnType<typeof createRunNodes>
+    edges?: ReturnType<typeof createRunEdges>
+    initialStoreState?: Record<string, unknown>
+  },
+) {
+  const { nodes = createRunNodes(), edges = createRunEdges(), initialStoreState } = options ?? {}
+
+  return renderWorkflowFlowHook(() => ({
+    ...useHook(),
+    nodes: useNodes(),
+    edges: useEdges(),
+  }), {
+    nodes,
+    edges,
+    reactFlowProps: { fitView: false },
+    initialStoreState,
+  })
+}
 
 describe('useWorkflowStarted', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, width: 200, height: 80, data: { _waitingRun: false } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should initialize workflow running data and reset nodes/edges', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowStarted(), {
+  it('should initialize workflow running data and reset nodes/edges', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowStarted(), {
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowStarted({
-      task_id: 'task-2',
-      data: { id: 'run-1', workflow_id: 'wf-1', created_at: 1000 },
-    } as WorkflowStartedResponse)
+    act(() => {
+      result.current.handleWorkflowStarted({
+        task_id: 'task-2',
+        data: { id: 'run-1', workflow_id: 'wf-1', created_at: 1000 },
+      } as WorkflowStartedResponse)
+    })
 
     const state = store.getState().workflowRunningData!
     expect(state.task_id).toBe('task-2')
     expect(state.result.status).toBe(WorkflowRunningStatus.Running)
     expect(state.resultText).toBe('')
 
-    expect(rfState.setNodes).toHaveBeenCalledOnce()
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._waitingRun).toBe(true)
-
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._waitingRun).toBe(true)
+      expect(getNodeRuntimeState(result.current.nodes[0])._runningBranchId).toBeUndefined()
+      expect(getEdgeRuntimeState(result.current.edges[0])._sourceRunningStatus).toBeUndefined()
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBeUndefined()
+      expect(getEdgeRuntimeState(result.current.edges[0])._waitingRun).toBe(true)
+    })
   })
 
   it('should resume from Paused without resetting nodes/edges', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowStarted(), {
+    const { result, store } = renderRunEventHook(() => useWorkflowStarted(), {
       initialStoreState: {
         workflowRunningData: baseRunningData({
           result: { status: WorkflowRunningStatus.Paused } as WorkflowRunningData['result'],
@@ -64,30 +122,28 @@ describe('useWorkflowStarted', () => {
       },
     })
 
-    result.current.handleWorkflowStarted({
-      task_id: 'task-2',
-      data: { id: 'run-2', workflow_id: 'wf-1', created_at: 2000 },
-    } as WorkflowStartedResponse)
+    act(() => {
+      result.current.handleWorkflowStarted({
+        task_id: 'task-2',
+        data: { id: 'run-2', workflow_id: 'wf-1', created_at: 2000 },
+      } as WorkflowStartedResponse)
+    })
 
     expect(store.getState().workflowRunningData!.result.status).toBe(WorkflowRunningStatus.Running)
-    expect(rfState.setNodes).not.toHaveBeenCalled()
-    expect(rfState.setEdges).not.toHaveBeenCalled()
+    expect(getNodeRuntimeState(result.current.nodes[0])._waitingRun).toBe(false)
+    expect(getEdgeRuntimeState(result.current.edges[0])._waitingRun).toBeUndefined()
   })
 })
 
 describe('useWorkflowNodeFinished', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should update tracing and node running status', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeFinished(), {
+  it('should update tracing and node running status', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowNodeFinished(), {
+      nodes: [
+        createNode({
+          id: 'n1',
+          data: { _runningStatus: NodeRunningStatus.Running },
+        }),
+      ],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ id: 'trace-1', node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -95,20 +151,29 @@ describe('useWorkflowNodeFinished', () => {
       },
     })
 
-    result.current.handleWorkflowNodeFinished({
-      data: { id: 'trace-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
-    } as NodeFinishedResponse)
+    act(() => {
+      result.current.handleWorkflowNodeFinished({
+        data: { id: 'trace-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
+      } as NodeFinishedResponse)
+    })
 
     const trace = store.getState().workflowRunningData!.tracing![0]
     expect(trace.status).toBe(NodeRunningStatus.Succeeded)
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._runningStatus).toBe(NodeRunningStatus.Succeeded)
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._runningStatus).toBe(NodeRunningStatus.Succeeded)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Succeeded)
+    })
   })
 
-  it('should set _runningBranchId for IfElse node', () => {
-    const { result } = renderWorkflowHook(() => useWorkflowNodeFinished(), {
+  it('should set _runningBranchId for IfElse node', async () => {
+    const { result } = renderRunEventHook(() => useWorkflowNodeFinished(), {
+      nodes: [
+        createNode({
+          id: 'n1',
+          data: { _runningStatus: NodeRunningStatus.Running },
+        }),
+      ],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ id: 'trace-1', node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -116,83 +181,75 @@ describe('useWorkflowNodeFinished', () => {
       },
     })
 
-    result.current.handleWorkflowNodeFinished({
-      data: {
-        id: 'trace-1',
-        node_id: 'n1',
-        node_type: 'if-else',
-        status: NodeRunningStatus.Succeeded,
-        outputs: { selected_case_id: 'branch-a' },
-      },
-    } as unknown as NodeFinishedResponse)
+    act(() => {
+      result.current.handleWorkflowNodeFinished({
+        data: {
+          id: 'trace-1',
+          node_id: 'n1',
+          node_type: 'if-else',
+          status: NodeRunningStatus.Succeeded,
+          outputs: { selected_case_id: 'branch-a' },
+        },
+      } as unknown as NodeFinishedResponse)
+    })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._runningBranchId).toBe('branch-a')
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._runningBranchId).toBe('branch-a')
+    })
   })
 })
 
 describe('useWorkflowNodeRetry', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: {} },
-    ]
-  })
-
-  it('should push retry data to tracing and update _retryIndex', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeRetry(), {
+  it('should push retry data to tracing and update _retryIndex', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowNodeRetry(), {
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowNodeRetry({
-      data: { node_id: 'n1', retry_index: 2 },
-    } as NodeFinishedResponse)
+    act(() => {
+      result.current.handleWorkflowNodeRetry({
+        data: { node_id: 'n1', retry_index: 2 },
+      } as NodeFinishedResponse)
+    })
 
     expect(store.getState().workflowRunningData!.tracing).toHaveLength(1)
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._retryIndex).toBe(2)
+
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._retryIndex).toBe(2)
+    })
   })
 })
 
 describe('useWorkflowNodeIterationNext', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: {} },
-    ]
-  })
-
-  it('should set _iterationIndex and increment iterTimes', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeIterationNext(), {
+  it('should set _iterationIndex and increment iterTimes', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowNodeIterationNext(), {
       initialStoreState: {
         workflowRunningData: baseRunningData(),
         iterTimes: 3,
       },
     })
 
-    result.current.handleWorkflowNodeIterationNext({
-      data: { node_id: 'n1' },
-    } as IterationNextResponse)
+    act(() => {
+      result.current.handleWorkflowNodeIterationNext({
+        data: { node_id: 'n1' },
+      } as IterationNextResponse)
+    })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._iterationIndex).toBe(3)
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._iterationIndex).toBe(3)
+    })
     expect(store.getState().iterTimes).toBe(4)
   })
 })
 
 describe('useWorkflowNodeIterationFinished', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should update tracing, reset iterTimes, update node status and edges', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeIterationFinished(), {
+  it('should update tracing, reset iterTimes, update node status and edges', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowNodeIterationFinished(), {
+      nodes: [
+        createNode({
+          id: 'n1',
+          data: { _runningStatus: NodeRunningStatus.Running },
+        }),
+      ],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ id: 'iter-1', node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -201,56 +258,60 @@ describe('useWorkflowNodeIterationFinished', () => {
       },
     })
 
-    result.current.handleWorkflowNodeIterationFinished({
-      data: { id: 'iter-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
-    } as IterationFinishedResponse)
+    act(() => {
+      result.current.handleWorkflowNodeIterationFinished({
+        data: { id: 'iter-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
+      } as IterationFinishedResponse)
+    })
 
     expect(store.getState().iterTimes).toBe(DEFAULT_ITER_TIMES)
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._runningStatus).toBe(NodeRunningStatus.Succeeded)
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._runningStatus).toBe(NodeRunningStatus.Succeeded)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Succeeded)
+    })
   })
 })
 
 describe('useWorkflowNodeLoopNext', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: {} },
-      { id: 'n2', position: { x: 300, y: 0 }, parentId: 'n1', data: { _waitingRun: false } },
-    ]
-  })
-
-  it('should set _loopIndex and reset child nodes to waiting', () => {
-    const { result } = renderWorkflowHook(() => useWorkflowNodeLoopNext(), {
+  it('should set _loopIndex and reset child nodes to waiting', async () => {
+    const { result } = renderRunEventHook(() => useWorkflowNodeLoopNext(), {
+      nodes: [
+        createNode({ id: 'n1', data: {} }),
+        createNode({
+          id: 'n2',
+          position: { x: 300, y: 0 },
+          parentId: 'n1',
+          data: { _waitingRun: false },
+        }),
+      ],
+      edges: [],
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowNodeLoopNext({
-      data: { node_id: 'n1', index: 5 },
-    } as LoopNextResponse)
+    act(() => {
+      result.current.handleWorkflowNodeLoopNext({
+        data: { node_id: 'n1', index: 5 },
+      } as LoopNextResponse)
+    })
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(updatedNodes[0].data._loopIndex).toBe(5)
-    expect(updatedNodes[1].data._waitingRun).toBe(true)
-    expect(updatedNodes[1].data._runningStatus).toBe(NodeRunningStatus.Waiting)
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes.find(node => node.id === 'n1'))._loopIndex).toBe(5)
+      expect(getNodeRuntimeState(result.current.nodes.find(node => node.id === 'n2'))._waitingRun).toBe(true)
+      expect(getNodeRuntimeState(result.current.nodes.find(node => node.id === 'n2'))._runningStatus).toBe(NodeRunningStatus.Waiting)
+    })
   })
 })
 
 describe('useWorkflowNodeLoopFinished', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should update tracing, node status and edges', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeLoopFinished(), {
+  it('should update tracing, node status and edges', async () => {
+    const { result, store } = renderRunEventHook(() => useWorkflowNodeLoopFinished(), {
+      nodes: [
+        createNode({
+          id: 'n1',
+          data: { _runningStatus: NodeRunningStatus.Running },
+        }),
+      ],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ id: 'loop-1', node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -258,12 +319,18 @@ describe('useWorkflowNodeLoopFinished', () => {
       },
     })
 
-    result.current.handleWorkflowNodeLoopFinished({
-      data: { id: 'loop-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
-    } as LoopFinishedResponse)
+    act(() => {
+      result.current.handleWorkflowNodeLoopFinished({
+        data: { id: 'loop-1', node_id: 'n1', status: NodeRunningStatus.Succeeded },
+      } as LoopFinishedResponse)
+    })
 
     const trace = store.getState().workflowRunningData!.tracing![0]
     expect(trace.status).toBe(NodeRunningStatus.Succeeded)
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes[0])._runningStatus).toBe(NodeRunningStatus.Succeeded)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Succeeded)
+    })
   })
 })
diff --git a/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-viewport.spec.ts b/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-viewport.spec.ts
index 51d1ba5b74..73b16acf2e 100644
--- a/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-viewport.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-workflow-run-event-with-viewport.spec.ts
@@ -4,8 +4,10 @@ import type {
   LoopStartedResponse,
   NodeStartedResponse,
 } from '@/types/workflow'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
-import { baseRunningData, renderWorkflowHook } from '../../__tests__/workflow-test-env'
+import { act, waitFor } from '@testing-library/react'
+import { useEdges, useNodes, useStoreApi } from 'reactflow'
+import { createEdge, createNode } from '../../__tests__/fixtures'
+import { baseRunningData, renderWorkflowFlowHook } from '../../__tests__/workflow-test-env'
 import { DEFAULT_ITER_TIMES } from '../../constants'
 import { NodeRunningStatus } from '../../types'
 import { useWorkflowNodeHumanInputRequired } from '../use-workflow-run-event/use-workflow-node-human-input-required'
@@ -13,67 +15,145 @@ import { useWorkflowNodeIterationStarted } from '../use-workflow-run-event/use-w
 import { useWorkflowNodeLoopStarted } from '../use-workflow-run-event/use-workflow-node-loop-started'
 import { useWorkflowNodeStarted } from '../use-workflow-run-event/use-workflow-node-started'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
-
-function findNodeById(nodes: Array<{ id: string, data: Record<string, unknown> }>, id: string) {
-  return nodes.find(n => n.id === id)!
+type NodeRuntimeState = {
+  _waitingRun?: boolean
+  _runningStatus?: NodeRunningStatus
+  _iterationLength?: number
+  _loopLength?: number
 }
 
+type EdgeRuntimeState = {
+  _sourceRunningStatus?: NodeRunningStatus
+  _targetRunningStatus?: NodeRunningStatus
+  _waitingRun?: boolean
+}
+
+const getNodeRuntimeState = (node?: { data?: unknown }): NodeRuntimeState =>
+  (node?.data ?? {}) as NodeRuntimeState
+
+const getEdgeRuntimeState = (edge?: { data?: unknown }): EdgeRuntimeState =>
+  (edge?.data ?? {}) as EdgeRuntimeState
+
 const containerParams = { clientWidth: 1200, clientHeight: 800 }
 
-describe('useWorkflowNodeStarted', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n0', position: { x: 0, y: 0 }, width: 200, height: 80, data: { _runningStatus: NodeRunningStatus.Succeeded } },
-      { id: 'n1', position: { x: 100, y: 50 }, width: 200, height: 80, data: { _waitingRun: true } },
-      { id: 'n2', position: { x: 400, y: 50 }, width: 200, height: 80, parentId: 'n1', data: { _waitingRun: true } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
+function createViewportNodes() {
+  return [
+    createNode({
+      id: 'n0',
+      width: 200,
+      height: 80,
+      data: { _runningStatus: NodeRunningStatus.Succeeded },
+    }),
+    createNode({
+      id: 'n1',
+      position: { x: 100, y: 50 },
+      width: 200,
+      height: 80,
+      data: { _waitingRun: true },
+    }),
+    createNode({
+      id: 'n2',
+      position: { x: 400, y: 50 },
+      width: 200,
+      height: 80,
+      parentId: 'n1',
+      data: { _waitingRun: true },
+    }),
+  ]
+}
 
-  it('should push to tracing, set node running, and adjust viewport for root node', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeStarted(), {
+function createViewportEdges() {
+  return [
+    createEdge({
+      id: 'e1',
+      source: 'n0',
+      target: 'n1',
+      sourceHandle: 'source',
+      data: {},
+    }),
+  ]
+}
+
+function renderViewportHook<T extends Record<string, unknown>>(
+  useHook: () => T,
+  options?: {
+    nodes?: ReturnType<typeof createViewportNodes>
+    edges?: ReturnType<typeof createViewportEdges>
+    initialStoreState?: Record<string, unknown>
+  },
+) {
+  const {
+    nodes = createViewportNodes(),
+    edges = createViewportEdges(),
+    initialStoreState,
+  } = options ?? {}
+
+  return renderWorkflowFlowHook(() => ({
+    ...useHook(),
+    nodes: useNodes(),
+    edges: useEdges(),
+    reactFlowStore: useStoreApi(),
+  }), {
+    nodes,
+    edges,
+    reactFlowProps: { fitView: false },
+    initialStoreState,
+  })
+}
+
+describe('useWorkflowNodeStarted', () => {
+  it('should push to tracing, set node running, and adjust viewport for root node', async () => {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeStarted(), {
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowNodeStarted(
-      { data: { node_id: 'n1' } } as NodeStartedResponse,
-      containerParams,
-    )
+    act(() => {
+      result.current.handleWorkflowNodeStarted(
+        { data: { node_id: 'n1' } } as NodeStartedResponse,
+        containerParams,
+      )
+    })
 
     const tracing = store.getState().workflowRunningData!.tracing!
     expect(tracing).toHaveLength(1)
     expect(tracing[0].status).toBe(NodeRunningStatus.Running)
 
-    expect(rfState.setViewport).toHaveBeenCalledOnce()
+    await waitFor(() => {
+      const transform = result.current.reactFlowStore.getState().transform
+      expect(transform[0]).toBe(200)
+      expect(transform[1]).toBe(310)
+      expect(transform[2]).toBe(1)
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    const n1 = findNodeById(updatedNodes, 'n1')
-    expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
-    expect(n1.data._waitingRun).toBe(false)
-
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+      const node = result.current.nodes.find(item => item.id === 'n1')
+      expect(getNodeRuntimeState(node)._runningStatus).toBe(NodeRunningStatus.Running)
+      expect(getNodeRuntimeState(node)._waitingRun).toBe(false)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Running)
+    })
   })
 
-  it('should not adjust viewport for child node (has parentId)', () => {
-    const { result } = renderWorkflowHook(() => useWorkflowNodeStarted(), {
+  it('should not adjust viewport for child node (has parentId)', async () => {
+    const { result } = renderViewportHook(() => useWorkflowNodeStarted(), {
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowNodeStarted(
-      { data: { node_id: 'n2' } } as NodeStartedResponse,
-      containerParams,
-    )
+    act(() => {
+      result.current.handleWorkflowNodeStarted(
+        { data: { node_id: 'n2' } } as NodeStartedResponse,
+        containerParams,
+      )
+    })
 
-    expect(rfState.setViewport).not.toHaveBeenCalled()
+    await waitFor(() => {
+      const transform = result.current.reactFlowStore.getState().transform
+      expect(transform[0]).toBe(0)
+      expect(transform[1]).toBe(0)
+      expect(transform[2]).toBe(1)
+      expect(getNodeRuntimeState(result.current.nodes.find(item => item.id === 'n2'))._runningStatus).toBe(NodeRunningStatus.Running)
+    })
   })
 
   it('should update existing tracing entry if node_id exists at non-zero index', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeStarted(), {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeStarted(), {
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [
@@ -84,10 +164,12 @@ describe('useWorkflowNodeStarted', () => {
       },
     })
 
-    result.current.handleWorkflowNodeStarted(
-      { data: { node_id: 'n1' } } as NodeStartedResponse,
-      containerParams,
-    )
+    act(() => {
+      result.current.handleWorkflowNodeStarted(
+        { data: { node_id: 'n1' } } as NodeStartedResponse,
+        containerParams,
+      )
+    })
 
     const tracing = store.getState().workflowRunningData!.tracing!
     expect(tracing).toHaveLength(2)
@@ -96,92 +178,80 @@ describe('useWorkflowNodeStarted', () => {
 })
 
 describe('useWorkflowNodeIterationStarted', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n0', position: { x: 0, y: 0 }, width: 200, height: 80, data: { _runningStatus: NodeRunningStatus.Succeeded } },
-      { id: 'n1', position: { x: 100, y: 50 }, width: 200, height: 80, data: { _waitingRun: true } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should push to tracing, reset iterTimes, set viewport, and update node with _iterationLength', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeIterationStarted(), {
+  it('should push to tracing, reset iterTimes, set viewport, and update node with _iterationLength', async () => {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeIterationStarted(), {
+      nodes: createViewportNodes().slice(0, 2),
       initialStoreState: {
         workflowRunningData: baseRunningData(),
         iterTimes: 99,
       },
     })
 
-    result.current.handleWorkflowNodeIterationStarted(
-      { data: { node_id: 'n1', metadata: { iterator_length: 10 } } } as IterationStartedResponse,
-      containerParams,
-    )
+    act(() => {
+      result.current.handleWorkflowNodeIterationStarted(
+        { data: { node_id: 'n1', metadata: { iterator_length: 10 } } } as IterationStartedResponse,
+        containerParams,
+      )
+    })
 
     const tracing = store.getState().workflowRunningData!.tracing!
     expect(tracing[0].status).toBe(NodeRunningStatus.Running)
-
     expect(store.getState().iterTimes).toBe(DEFAULT_ITER_TIMES)
-    expect(rfState.setViewport).toHaveBeenCalledOnce()
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    const n1 = findNodeById(updatedNodes, 'n1')
-    expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
-    expect(n1.data._iterationLength).toBe(10)
-    expect(n1.data._waitingRun).toBe(false)
+    await waitFor(() => {
+      const transform = result.current.reactFlowStore.getState().transform
+      expect(transform[0]).toBe(200)
+      expect(transform[1]).toBe(310)
+      expect(transform[2]).toBe(1)
 
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+      const node = result.current.nodes.find(item => item.id === 'n1')
+      expect(getNodeRuntimeState(node)._runningStatus).toBe(NodeRunningStatus.Running)
+      expect(getNodeRuntimeState(node)._iterationLength).toBe(10)
+      expect(getNodeRuntimeState(node)._waitingRun).toBe(false)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Running)
+    })
   })
 })
 
 describe('useWorkflowNodeLoopStarted', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n0', position: { x: 0, y: 0 }, width: 200, height: 80, data: { _runningStatus: NodeRunningStatus.Succeeded } },
-      { id: 'n1', position: { x: 100, y: 50 }, width: 200, height: 80, data: { _waitingRun: true } },
-    ]
-    rfState.edges = [
-      { id: 'e1', source: 'n0', target: 'n1', data: {} },
-    ]
-  })
-
-  it('should push to tracing, set viewport, and update node with _loopLength', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeLoopStarted(), {
+  it('should push to tracing, set viewport, and update node with _loopLength', async () => {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeLoopStarted(), {
+      nodes: createViewportNodes().slice(0, 2),
       initialStoreState: { workflowRunningData: baseRunningData() },
     })
 
-    result.current.handleWorkflowNodeLoopStarted(
-      { data: { node_id: 'n1', metadata: { loop_length: 5 } } } as LoopStartedResponse,
-      containerParams,
-    )
+    act(() => {
+      result.current.handleWorkflowNodeLoopStarted(
+        { data: { node_id: 'n1', metadata: { loop_length: 5 } } } as LoopStartedResponse,
+        containerParams,
+      )
+    })
 
     expect(store.getState().workflowRunningData!.tracing![0].status).toBe(NodeRunningStatus.Running)
-    expect(rfState.setViewport).toHaveBeenCalledOnce()
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    const n1 = findNodeById(updatedNodes, 'n1')
-    expect(n1.data._runningStatus).toBe(NodeRunningStatus.Running)
-    expect(n1.data._loopLength).toBe(5)
-    expect(n1.data._waitingRun).toBe(false)
+    await waitFor(() => {
+      const transform = result.current.reactFlowStore.getState().transform
+      expect(transform[0]).toBe(200)
+      expect(transform[1]).toBe(310)
+      expect(transform[2]).toBe(1)
 
-    expect(rfState.setEdges).toHaveBeenCalledOnce()
+      const node = result.current.nodes.find(item => item.id === 'n1')
+      expect(getNodeRuntimeState(node)._runningStatus).toBe(NodeRunningStatus.Running)
+      expect(getNodeRuntimeState(node)._loopLength).toBe(5)
+      expect(getNodeRuntimeState(node)._waitingRun).toBe(false)
+      expect(getEdgeRuntimeState(result.current.edges[0])._targetRunningStatus).toBe(NodeRunningStatus.Running)
+    })
   })
 })
 
 describe('useWorkflowNodeHumanInputRequired', () => {
-  beforeEach(() => {
-    resetReactFlowMockState()
-    rfState.nodes = [
-      { id: 'n1', position: { x: 0, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } },
-      { id: 'n2', position: { x: 300, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } },
-    ]
-  })
-
-  it('should create humanInputFormDataList and set tracing/node to Paused', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeHumanInputRequired(), {
+  it('should create humanInputFormDataList and set tracing/node to Paused', async () => {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeHumanInputRequired(), {
+      nodes: [
+        createNode({ id: 'n1', data: { _runningStatus: NodeRunningStatus.Running } }),
+        createNode({ id: 'n2', position: { x: 300, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } }),
+      ],
+      edges: [],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -189,21 +259,29 @@ describe('useWorkflowNodeHumanInputRequired', () => {
       },
     })
 
-    result.current.handleWorkflowNodeHumanInputRequired({
-      data: { node_id: 'n1', form_id: 'f1', node_title: 'Node 1', form_content: 'content' },
-    } as HumanInputRequiredResponse)
+    act(() => {
+      result.current.handleWorkflowNodeHumanInputRequired({
+        data: { node_id: 'n1', form_id: 'f1', node_title: 'Node 1', form_content: 'content' },
+      } as HumanInputRequiredResponse)
+    })
 
     const state = store.getState().workflowRunningData!
     expect(state.humanInputFormDataList).toHaveLength(1)
     expect(state.humanInputFormDataList![0].form_id).toBe('f1')
     expect(state.tracing![0].status).toBe(NodeRunningStatus.Paused)
 
-    const updatedNodes = rfState.setNodes.mock.calls[0][0]
-    expect(findNodeById(updatedNodes, 'n1').data._runningStatus).toBe(NodeRunningStatus.Paused)
+    await waitFor(() => {
+      expect(getNodeRuntimeState(result.current.nodes.find(item => item.id === 'n1'))._runningStatus).toBe(NodeRunningStatus.Paused)
+    })
   })
 
   it('should update existing form entry for same node_id', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeHumanInputRequired(), {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeHumanInputRequired(), {
+      nodes: [
+        createNode({ id: 'n1', data: { _runningStatus: NodeRunningStatus.Running } }),
+        createNode({ id: 'n2', position: { x: 300, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } }),
+      ],
+      edges: [],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ node_id: 'n1', status: NodeRunningStatus.Running }],
@@ -214,9 +292,11 @@ describe('useWorkflowNodeHumanInputRequired', () => {
       },
     })
 
-    result.current.handleWorkflowNodeHumanInputRequired({
-      data: { node_id: 'n1', form_id: 'new', node_title: 'Node 1', form_content: 'new' },
-    } as HumanInputRequiredResponse)
+    act(() => {
+      result.current.handleWorkflowNodeHumanInputRequired({
+        data: { node_id: 'n1', form_id: 'new', node_title: 'Node 1', form_content: 'new' },
+      } as HumanInputRequiredResponse)
+    })
 
     const formList = store.getState().workflowRunningData!.humanInputFormDataList!
     expect(formList).toHaveLength(1)
@@ -224,7 +304,12 @@ describe('useWorkflowNodeHumanInputRequired', () => {
   })
 
   it('should append new form entry for different node_id', () => {
-    const { result, store } = renderWorkflowHook(() => useWorkflowNodeHumanInputRequired(), {
+    const { result, store } = renderViewportHook(() => useWorkflowNodeHumanInputRequired(), {
+      nodes: [
+        createNode({ id: 'n1', data: { _runningStatus: NodeRunningStatus.Running } }),
+        createNode({ id: 'n2', position: { x: 300, y: 0 }, data: { _runningStatus: NodeRunningStatus.Running } }),
+      ],
+      edges: [],
       initialStoreState: {
         workflowRunningData: baseRunningData({
           tracing: [{ node_id: 'n2', status: NodeRunningStatus.Running }],
@@ -235,9 +320,11 @@ describe('useWorkflowNodeHumanInputRequired', () => {
       },
     })
 
-    result.current.handleWorkflowNodeHumanInputRequired({
-      data: { node_id: 'n2', form_id: 'f2', node_title: 'Node 2', form_content: 'content2' },
-    } as HumanInputRequiredResponse)
+    act(() => {
+      result.current.handleWorkflowNodeHumanInputRequired({
+        data: { node_id: 'n2', form_id: 'f2', node_title: 'Node 2', form_content: 'content2' },
+      } as HumanInputRequiredResponse)
+    })
 
     expect(store.getState().workflowRunningData!.humanInputFormDataList).toHaveLength(2)
   })
diff --git a/web/app/components/workflow/hooks/__tests__/use-workflow.spec.ts b/web/app/components/workflow/hooks/__tests__/use-workflow.spec.ts
index 24cc9455cb..7b1d328dcf 100644
--- a/web/app/components/workflow/hooks/__tests__/use-workflow.spec.ts
+++ b/web/app/components/workflow/hooks/__tests__/use-workflow.spec.ts
@@ -1,6 +1,6 @@
 import { act, renderHook } from '@testing-library/react'
-import { resetReactFlowMockState, rfState } from '../../__tests__/reactflow-mock-state'
-import { baseRunningData, renderWorkflowHook } from '../../__tests__/workflow-test-env'
+import { createNode } from '../../__tests__/fixtures'
+import { baseRunningData, renderWorkflowFlowHook, renderWorkflowHook } from '../../__tests__/workflow-test-env'
 import { WorkflowRunningStatus } from '../../types'
 import {
   useIsChatMode,
@@ -10,9 +10,6 @@ import {
   useWorkflowReadOnly,
 } from '../use-workflow'
 
-vi.mock('reactflow', async () =>
-  (await import('../../__tests__/reactflow-mock-state')).createReactFlowModuleMock())
-
 let mockAppMode = 'workflow'
 vi.mock('@/app/components/app/store', () => ({
   useStore: (selector: (state: { appDetail: { mode: string } }) => unknown) => selector({ appDetail: { mode: mockAppMode } }),
@@ -20,7 +17,6 @@ vi.mock('@/app/components/app/store', () => ({
 
 beforeEach(() => {
   vi.clearAllMocks()
-  resetReactFlowMockState()
   mockAppMode = 'workflow'
 })
 
@@ -158,37 +154,50 @@ describe('useNodesReadOnly', () => {
 // ---------------------------------------------------------------------------
 
 describe('useIsNodeInIteration', () => {
-  beforeEach(() => {
-    rfState.nodes = [
-      { id: 'iter-1', position: { x: 0, y: 0 }, data: { type: 'iteration' } },
-      { id: 'child-1', position: { x: 10, y: 0 }, parentId: 'iter-1', data: {} },
-      { id: 'grandchild-1', position: { x: 20, y: 0 }, parentId: 'child-1', data: {} },
-      { id: 'outside-1', position: { x: 100, y: 0 }, data: {} },
-    ]
-  })
+  const createIterationNodes = () => [
+    createNode({ id: 'iter-1' }),
+    createNode({ id: 'child-1', parentId: 'iter-1' }),
+    createNode({ id: 'grandchild-1', parentId: 'child-1' }),
+    createNode({ id: 'outside-1' }),
+  ]
 
   it('should return true when node is a direct child of the iteration', () => {
-    const { result } = renderHook(() => useIsNodeInIteration('iter-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInIteration('iter-1'), {
+      nodes: createIterationNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInIteration('child-1')).toBe(true)
   })
 
   it('should return false for a grandchild (only checks direct parentId)', () => {
-    const { result } = renderHook(() => useIsNodeInIteration('iter-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInIteration('iter-1'), {
+      nodes: createIterationNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInIteration('grandchild-1')).toBe(false)
   })
 
   it('should return false when node is outside the iteration', () => {
-    const { result } = renderHook(() => useIsNodeInIteration('iter-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInIteration('iter-1'), {
+      nodes: createIterationNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInIteration('outside-1')).toBe(false)
   })
 
   it('should return false when node does not exist', () => {
-    const { result } = renderHook(() => useIsNodeInIteration('iter-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInIteration('iter-1'), {
+      nodes: createIterationNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInIteration('nonexistent')).toBe(false)
   })
 
   it('should return false when iteration id has no children', () => {
-    const { result } = renderHook(() => useIsNodeInIteration('no-such-iter'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInIteration('no-such-iter'), {
+      nodes: createIterationNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInIteration('child-1')).toBe(false)
   })
 })
@@ -198,37 +207,50 @@ describe('useIsNodeInIteration', () => {
 // ---------------------------------------------------------------------------
 
 describe('useIsNodeInLoop', () => {
-  beforeEach(() => {
-    rfState.nodes = [
-      { id: 'loop-1', position: { x: 0, y: 0 }, data: { type: 'loop' } },
-      { id: 'child-1', position: { x: 10, y: 0 }, parentId: 'loop-1', data: {} },
-      { id: 'grandchild-1', position: { x: 20, y: 0 }, parentId: 'child-1', data: {} },
-      { id: 'outside-1', position: { x: 100, y: 0 }, data: {} },
-    ]
-  })
+  const createLoopNodes = () => [
+    createNode({ id: 'loop-1' }),
+    createNode({ id: 'child-1', parentId: 'loop-1' }),
+    createNode({ id: 'grandchild-1', parentId: 'child-1' }),
+    createNode({ id: 'outside-1' }),
+  ]
 
   it('should return true when node is a direct child of the loop', () => {
-    const { result } = renderHook(() => useIsNodeInLoop('loop-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInLoop('loop-1'), {
+      nodes: createLoopNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInLoop('child-1')).toBe(true)
   })
 
   it('should return false for a grandchild (only checks direct parentId)', () => {
-    const { result } = renderHook(() => useIsNodeInLoop('loop-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInLoop('loop-1'), {
+      nodes: createLoopNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInLoop('grandchild-1')).toBe(false)
   })
 
   it('should return false when node is outside the loop', () => {
-    const { result } = renderHook(() => useIsNodeInLoop('loop-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInLoop('loop-1'), {
+      nodes: createLoopNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInLoop('outside-1')).toBe(false)
   })
 
   it('should return false when node does not exist', () => {
-    const { result } = renderHook(() => useIsNodeInLoop('loop-1'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInLoop('loop-1'), {
+      nodes: createLoopNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInLoop('nonexistent')).toBe(false)
   })
 
   it('should return false when loop id has no children', () => {
-    const { result } = renderHook(() => useIsNodeInLoop('no-such-loop'))
+    const { result } = renderWorkflowFlowHook(() => useIsNodeInLoop('no-such-loop'), {
+      nodes: createLoopNodes(),
+      edges: [],
+    })
     expect(result.current.isNodeInLoop('child-1')).toBe(false)
   })
 })
diff --git a/web/app/components/workflow/nodes/_base/components/__tests__/agent-strategy.spec.tsx b/web/app/components/workflow/nodes/_base/components/__tests__/agent-strategy.spec.tsx
index 72e2032d75..c3738ca260 100644
--- a/web/app/components/workflow/nodes/_base/components/__tests__/agent-strategy.spec.tsx
+++ b/web/app/components/workflow/nodes/_base/components/__tests__/agent-strategy.spec.tsx
@@ -6,16 +6,18 @@ import type {
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import { render, screen } from '@testing-library/react'
 import { FormTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import { createDocLinkMock } from '../../../../__tests__/i18n'
 import { AgentStrategy } from '../agent-strategy'
 
 const createI18nLabel = (text: string) => ({ en_US: text, zh_Hans: text })
+const mockDocLink = createDocLinkMock('/docs')
 
 vi.mock('@/app/components/header/account-setting/model-provider-page/hooks', () => ({
   useDefaultModel: () => ({ data: null }),
 }))
 
 vi.mock('@/context/i18n', () => ({
-  useDocLink: () => () => '/docs',
+  useDocLink: () => mockDocLink,
 }))
 
 vi.mock('@/hooks/use-i18n', () => ({
diff --git a/web/app/components/workflow/nodes/_base/components/field.spec.tsx b/web/app/components/workflow/nodes/_base/components/__tests__/field.spec.tsx
similarity index 98%
rename from web/app/components/workflow/nodes/_base/components/field.spec.tsx
rename to web/app/components/workflow/nodes/_base/components/__tests__/field.spec.tsx
index a34a862118..e16ed108f7 100644
--- a/web/app/components/workflow/nodes/_base/components/field.spec.tsx
+++ b/web/app/components/workflow/nodes/_base/components/__tests__/field.spec.tsx
@@ -1,5 +1,5 @@
 import { fireEvent, render, screen } from '@testing-library/react'
-import Field from './field'
+import Field from '../field'
 
 vi.mock('@/app/components/base/tooltip', () => ({
   default: ({ popupContent }: { popupContent: React.ReactNode }) => <div>{popupContent}</div>,
diff --git a/web/app/components/workflow/nodes/_base/components/node-control.spec.tsx b/web/app/components/workflow/nodes/_base/components/__tests__/node-control.spec.tsx
similarity index 86%
rename from web/app/components/workflow/nodes/_base/components/node-control.spec.tsx
rename to web/app/components/workflow/nodes/_base/components/__tests__/node-control.spec.tsx
index 1843f77a52..82650a61f4 100644
--- a/web/app/components/workflow/nodes/_base/components/node-control.spec.tsx
+++ b/web/app/components/workflow/nodes/_base/components/__tests__/node-control.spec.tsx
@@ -1,8 +1,8 @@
-import type { CommonNodeType } from '../../../types'
+import type { CommonNodeType } from '../../../../types'
 import { fireEvent, screen } from '@testing-library/react'
-import { renderWorkflowComponent } from '../../../__tests__/workflow-test-env'
-import { BlockEnum, NodeRunningStatus } from '../../../types'
-import NodeControl from './node-control'
+import { renderWorkflowComponent } from '../../../../__tests__/workflow-test-env'
+import { BlockEnum, NodeRunningStatus } from '../../../../types'
+import NodeControl from '../node-control'
 
 const {
   mockHandleNodeSelect,
@@ -14,8 +14,8 @@ const {
 
 let mockPluginInstallLocked = false
 
-vi.mock('../../../hooks', async () => {
-  const actual = await vi.importActual<typeof import('../../../hooks')>('../../../hooks')
+vi.mock('../../../../hooks', async () => {
+  const actual = await vi.importActual<typeof import('../../../../hooks')>('../../../../hooks')
   return {
     ...actual,
     useNodesInteractions: () => ({
@@ -24,15 +24,15 @@ vi.mock('../../../hooks', async () => {
   }
 })
 
-vi.mock('../../../utils', async () => {
-  const actual = await vi.importActual<typeof import('../../../utils')>('../../../utils')
+vi.mock('../../../../utils', async () => {
+  const actual = await vi.importActual<typeof import('../../../../utils')>('../../../../utils')
   return {
     ...actual,
     canRunBySingle: mockCanRunBySingle,
   }
 })
 
-vi.mock('./panel-operator', () => ({
+vi.mock('../panel-operator', () => ({
   default: ({ onOpenChange }: { onOpenChange: (open: boolean) => void }) => (
     <>
       <button type="button" onClick={() => onOpenChange(true)}>open panel</button>
diff --git a/web/app/components/workflow/nodes/_base/components/collapse/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/collapse/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..f66c5f0473
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/collapse/__tests__/index.spec.tsx
@@ -0,0 +1,83 @@
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import Collapse from '../index'
+
+describe('Collapse', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Collapse should toggle local state when interactive and stay fixed when disabled.
+  describe('Interaction', () => {
+    it('should expand collapsed content and notify onCollapse when clicked', async () => {
+      const user = userEvent.setup()
+      const onCollapse = vi.fn()
+
+      render(
+        <Collapse
+          trigger={<div>Advanced</div>}
+          onCollapse={onCollapse}
+        >
+          <div>Collapse content</div>
+        </Collapse>,
+      )
+
+      expect(screen.queryByText('Collapse content')).not.toBeInTheDocument()
+
+      await user.click(screen.getByText('Advanced'))
+
+      expect(screen.getByText('Collapse content')).toBeInTheDocument()
+      expect(onCollapse).toHaveBeenCalledWith(false)
+    })
+
+    it('should keep content collapsed when disabled', async () => {
+      const user = userEvent.setup()
+      const onCollapse = vi.fn()
+
+      render(
+        <Collapse
+          disabled
+          trigger={<div>Disabled section</div>}
+          onCollapse={onCollapse}
+        >
+          <div>Hidden content</div>
+        </Collapse>,
+      )
+
+      await user.click(screen.getByText('Disabled section'))
+
+      expect(screen.queryByText('Hidden content')).not.toBeInTheDocument()
+      expect(onCollapse).not.toHaveBeenCalled()
+    })
+
+    it('should respect controlled collapse state and render function triggers', async () => {
+      const user = userEvent.setup()
+      const onCollapse = vi.fn()
+
+      render(
+        <Collapse
+          collapsed={false}
+          hideCollapseIcon
+          operations={<button type="button">Operation</button>}
+          trigger={collapseIcon => (
+            <div>
+              <span>Controlled section</span>
+              {collapseIcon}
+            </div>
+          )}
+          onCollapse={onCollapse}
+        >
+          <div>Visible content</div>
+        </Collapse>,
+      )
+
+      expect(screen.getByText('Visible content')).toBeInTheDocument()
+      expect(screen.getByRole('button', { name: 'Operation' })).toBeInTheDocument()
+
+      await user.click(screen.getByText('Controlled section'))
+
+      expect(onCollapse).toHaveBeenCalledWith(true)
+      expect(screen.getByText('Visible content')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/input-field/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/input-field/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..a6d6d0bf6c
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/input-field/__tests__/index.spec.tsx
@@ -0,0 +1,18 @@
+import { render, screen } from '@testing-library/react'
+import InputField from '../index'
+
+describe('InputField', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The placeholder field should render its title, body, and add action.
+  describe('Rendering', () => {
+    it('should render the default field title and content', () => {
+      render(<InputField />)
+
+      expect(screen.getAllByText('input field')).toHaveLength(2)
+      expect(screen.getByRole('button')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/layout/field-title.spec.tsx b/web/app/components/workflow/nodes/_base/components/layout/__tests__/field-title.spec.tsx
similarity index 98%
rename from web/app/components/workflow/nodes/_base/components/layout/field-title.spec.tsx
rename to web/app/components/workflow/nodes/_base/components/layout/__tests__/field-title.spec.tsx
index 3b1be0040e..8eec97111a 100644
--- a/web/app/components/workflow/nodes/_base/components/layout/field-title.spec.tsx
+++ b/web/app/components/workflow/nodes/_base/components/layout/__tests__/field-title.spec.tsx
@@ -1,5 +1,5 @@
 import { fireEvent, render, screen } from '@testing-library/react'
-import { FieldTitle } from './field-title'
+import { FieldTitle } from '../field-title'
 
 vi.mock('@/app/components/base/ui/tooltip', () => ({
   Tooltip: ({ children }: { children: React.ReactNode }) => <div>{children}</div>,
diff --git a/web/app/components/workflow/nodes/_base/components/layout/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/layout/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..680965eb06
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/layout/__tests__/index.spec.tsx
@@ -0,0 +1,35 @@
+import { render, screen } from '@testing-library/react'
+import { BoxGroupField, FieldTitle } from '../index'
+
+describe('layout index', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The barrel exports should compose the public layout primitives without extra wrappers.
+  describe('Rendering', () => {
+    it('should render BoxGroupField from the barrel export', () => {
+      render(
+        <BoxGroupField
+          fieldProps={{
+            fieldTitleProps: {
+              title: 'Input',
+            },
+          }}
+        >
+          Body content
+        </BoxGroupField>,
+      )
+
+      expect(screen.getByText('Input')).toBeInTheDocument()
+      expect(screen.getByText('Body content')).toBeInTheDocument()
+    })
+
+    it('should render FieldTitle from the barrel export', () => {
+      render(<FieldTitle title="Advanced" subTitle="Extra details" />)
+
+      expect(screen.getByText('Advanced')).toBeInTheDocument()
+      expect(screen.getByText('Extra details')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/next-step/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/next-step/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..82b2ee9603
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/next-step/__tests__/index.spec.tsx
@@ -0,0 +1,195 @@
+import type { ReactNode } from 'react'
+import type { Edge, Node } from '@/app/components/workflow/types'
+import { screen } from '@testing-library/react'
+import {
+  createEdge,
+  createNode,
+} from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  useAvailableBlocks,
+  useNodesInteractions,
+  useNodesReadOnly,
+  useToolIcon,
+} from '@/app/components/workflow/hooks'
+import { ErrorHandleTypeEnum } from '@/app/components/workflow/nodes/_base/components/error-handle/types'
+import { BlockEnum } from '@/app/components/workflow/types'
+import NextStep from '../index'
+
+vi.mock('@/app/components/workflow/block-selector', () => ({
+  default: ({ trigger }: { trigger: ((open: boolean) => ReactNode) | ReactNode }) => {
+    return (
+      <div data-testid="next-step-block-selector">
+        {typeof trigger === 'function' ? trigger(false) : trigger}
+      </div>
+    )
+  },
+}))
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useAvailableBlocks: vi.fn(),
+    useNodesInteractions: vi.fn(),
+    useNodesReadOnly: vi.fn(),
+    useToolIcon: vi.fn(),
+  }
+})
+
+const mockUseAvailableBlocks = vi.mocked(useAvailableBlocks)
+const mockUseNodesInteractions = vi.mocked(useNodesInteractions)
+const mockUseNodesReadOnly = vi.mocked(useNodesReadOnly)
+const mockUseToolIcon = vi.mocked(useToolIcon)
+
+const createAvailableBlocksResult = (): ReturnType<typeof useAvailableBlocks> => ({
+  getAvailableBlocks: vi.fn(() => ({
+    availablePrevBlocks: [],
+    availableNextBlocks: [],
+  })),
+  availablePrevBlocks: [],
+  availableNextBlocks: [],
+})
+
+const renderComponent = (selectedNode: Node, nodes: Node[], edges: Edge[] = []) =>
+  renderWorkflowFlowComponent(
+    <NextStep selectedNode={selectedNode} />,
+    {
+      nodes,
+      edges,
+      canvasStyle: {
+        width: 600,
+        height: 400,
+      },
+    },
+  )
+
+describe('NextStep', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseAvailableBlocks.mockReturnValue(createAvailableBlocksResult())
+    mockUseNodesInteractions.mockReturnValue({
+      handleNodeSelect: vi.fn(),
+      handleNodeAdd: vi.fn(),
+    } as unknown as ReturnType<typeof useNodesInteractions>)
+    mockUseNodesReadOnly.mockReturnValue({
+      nodesReadOnly: true,
+    } as ReturnType<typeof useNodesReadOnly>)
+    mockUseToolIcon.mockReturnValue('')
+  })
+
+  // NextStep should summarize linear next nodes and failure branches from the real ReactFlow graph.
+  describe('Rendering', () => {
+    it('should render connected next nodes and the parallel add action for the default source handle', () => {
+      const selectedNode = createNode({
+        id: 'selected-node',
+        data: {
+          type: BlockEnum.Code,
+          title: 'Selected Node',
+        },
+      })
+      const nextNode = createNode({
+        id: 'next-node',
+        data: {
+          type: BlockEnum.Answer,
+          title: 'Next Node',
+        },
+      })
+      const edge = createEdge({
+        source: 'selected-node',
+        target: 'next-node',
+        sourceHandle: 'source',
+      })
+
+      renderComponent(selectedNode, [selectedNode, nextNode], [edge])
+
+      expect(screen.getByText('Next Node')).toBeInTheDocument()
+      expect(screen.getByText('workflow.common.addParallelNode')).toBeInTheDocument()
+    })
+
+    it('should render configured branch names when target branches are present', () => {
+      const selectedNode = createNode({
+        id: 'selected-node',
+        data: {
+          type: BlockEnum.Code,
+          title: 'Selected Node',
+          _targetBranches: [{
+            id: 'branch-a',
+            name: 'Approved',
+          }],
+        },
+      })
+      const nextNode = createNode({
+        id: 'next-node',
+        data: {
+          type: BlockEnum.Answer,
+          title: 'Branch Node',
+        },
+      })
+      const edge = createEdge({
+        source: 'selected-node',
+        target: 'next-node',
+        sourceHandle: 'branch-a',
+      })
+
+      renderComponent(selectedNode, [selectedNode, nextNode], [edge])
+
+      expect(screen.getByText('Approved')).toBeInTheDocument()
+      expect(screen.getByText('Branch Node')).toBeInTheDocument()
+      expect(screen.getByText('workflow.common.addParallelNode')).toBeInTheDocument()
+    })
+
+    it('should number question-classifier branches even when no target node is connected', () => {
+      const selectedNode = createNode({
+        id: 'selected-node',
+        data: {
+          type: BlockEnum.QuestionClassifier,
+          title: 'Classifier',
+          _targetBranches: [{
+            id: 'branch-b',
+            name: 'Original branch name',
+          }],
+        },
+      })
+      const danglingEdge = createEdge({
+        source: 'selected-node',
+        target: 'missing-node',
+        sourceHandle: 'branch-b',
+      })
+
+      renderComponent(selectedNode, [selectedNode], [danglingEdge])
+
+      expect(screen.getByText('workflow.nodes.questionClassifiers.class 1')).toBeInTheDocument()
+      expect(screen.getByText('workflow.panel.selectNextStep')).toBeInTheDocument()
+    })
+
+    it('should render the failure branch when the node has error handling enabled', () => {
+      const selectedNode = createNode({
+        id: 'selected-node',
+        data: {
+          type: BlockEnum.Code,
+          title: 'Selected Node',
+          error_strategy: ErrorHandleTypeEnum.failBranch,
+        },
+      })
+      const failNode = createNode({
+        id: 'fail-node',
+        data: {
+          type: BlockEnum.Answer,
+          title: 'Failure Node',
+        },
+      })
+      const failEdge = createEdge({
+        source: 'selected-node',
+        target: 'fail-node',
+        sourceHandle: ErrorHandleTypeEnum.failBranch,
+      })
+
+      renderComponent(selectedNode, [selectedNode, failNode], [failEdge])
+
+      expect(screen.getByText('workflow.common.onFailure')).toBeInTheDocument()
+      expect(screen.getByText('Failure Node')).toBeInTheDocument()
+      expect(screen.getByText('workflow.common.addFailureBranch')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/panel-operator/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/panel-operator/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..183e28c5f0
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/panel-operator/__tests__/index.spec.tsx
@@ -0,0 +1,162 @@
+import type { UseQueryResult } from '@tanstack/react-query'
+import type { ToolWithProvider } from '@/app/components/workflow/types'
+import { screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  useNodeDataUpdate,
+  useNodeMetaData,
+  useNodesInteractions,
+  useNodesReadOnly,
+  useNodesSyncDraft,
+} from '@/app/components/workflow/hooks'
+import { BlockEnum } from '@/app/components/workflow/types'
+import { useAllWorkflowTools } from '@/service/use-tools'
+import PanelOperator from '../index'
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useNodeDataUpdate: vi.fn(),
+    useNodeMetaData: vi.fn(),
+    useNodesInteractions: vi.fn(),
+    useNodesReadOnly: vi.fn(),
+    useNodesSyncDraft: vi.fn(),
+  }
+})
+
+vi.mock('@/service/use-tools', () => ({
+  useAllWorkflowTools: vi.fn(),
+}))
+
+vi.mock('../change-block', () => ({
+  default: () => <div data-testid="panel-operator-change-block" />,
+}))
+
+const mockUseNodeDataUpdate = vi.mocked(useNodeDataUpdate)
+const mockUseNodeMetaData = vi.mocked(useNodeMetaData)
+const mockUseNodesInteractions = vi.mocked(useNodesInteractions)
+const mockUseNodesReadOnly = vi.mocked(useNodesReadOnly)
+const mockUseNodesSyncDraft = vi.mocked(useNodesSyncDraft)
+const mockUseAllWorkflowTools = vi.mocked(useAllWorkflowTools)
+
+const createQueryResult = <T,>(data: T): UseQueryResult<T, Error> => ({
+  data,
+  error: null,
+  refetch: vi.fn(),
+  isError: false,
+  isPending: false,
+  isLoading: false,
+  isSuccess: true,
+  isFetching: false,
+  isRefetching: false,
+  isLoadingError: false,
+  isRefetchError: false,
+  isInitialLoading: false,
+  isPaused: false,
+  isEnabled: true,
+  status: 'success',
+  fetchStatus: 'idle',
+  dataUpdatedAt: Date.now(),
+  errorUpdatedAt: 0,
+  failureCount: 0,
+  failureReason: null,
+  errorUpdateCount: 0,
+  isFetched: true,
+  isFetchedAfterMount: true,
+  isPlaceholderData: false,
+  isStale: false,
+  promise: Promise.resolve(data),
+} as UseQueryResult<T, Error>)
+
+const renderComponent = (showHelpLink: boolean = true, onOpenChange?: (open: boolean) => void) =>
+  renderWorkflowFlowComponent(
+    <PanelOperator
+      id="node-1"
+      data={{
+        title: 'Code Node',
+        desc: '',
+        type: BlockEnum.Code,
+      }}
+      triggerClassName="panel-operator-trigger"
+      onOpenChange={onOpenChange}
+      showHelpLink={showHelpLink}
+    />,
+    {
+      nodes: [],
+      edges: [],
+    },
+  )
+
+describe('PanelOperator', () => {
+  const handleNodeSelect = vi.fn()
+  const handleNodeDataUpdate = vi.fn()
+  const handleSyncWorkflowDraft = vi.fn()
+  const handleNodeDelete = vi.fn()
+
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseNodeDataUpdate.mockReturnValue({
+      handleNodeDataUpdate,
+      handleNodeDataUpdateWithSyncDraft: vi.fn(),
+    })
+    mockUseNodeMetaData.mockReturnValue({
+      isTypeFixed: false,
+      isSingleton: false,
+      isUndeletable: false,
+      description: 'Node description',
+      author: 'Dify',
+      helpLinkUri: 'https://docs.example.com/node',
+    } as ReturnType<typeof useNodeMetaData>)
+    mockUseNodesInteractions.mockReturnValue({
+      handleNodeDelete,
+      handleNodesDuplicate: vi.fn(),
+      handleNodeSelect,
+      handleNodesCopy: vi.fn(),
+    } as unknown as ReturnType<typeof useNodesInteractions>)
+    mockUseNodesReadOnly.mockReturnValue({
+      nodesReadOnly: false,
+    } as ReturnType<typeof useNodesReadOnly>)
+    mockUseNodesSyncDraft.mockReturnValue({
+      doSyncWorkflowDraft: vi.fn().mockResolvedValue(undefined),
+      handleSyncWorkflowDraft,
+      syncWorkflowDraftWhenPageClose: vi.fn(),
+    })
+    mockUseAllWorkflowTools.mockReturnValue(createQueryResult<ToolWithProvider[]>([]))
+  })
+
+  // The operator should open the real popup, expose actionable items, and respect help-link visibility.
+  describe('Popup Interaction', () => {
+    it('should open the popup and trigger single-run actions', async () => {
+      const user = userEvent.setup()
+      const onOpenChange = vi.fn()
+      const { container } = renderComponent(true, onOpenChange)
+
+      await user.click(container.querySelector('.panel-operator-trigger') as HTMLElement)
+
+      expect(onOpenChange).toHaveBeenCalledWith(true)
+      expect(screen.getByText('workflow.panel.runThisStep')).toBeInTheDocument()
+      expect(screen.getByText('Node description')).toBeInTheDocument()
+
+      await user.click(screen.getByText('workflow.panel.runThisStep'))
+
+      expect(handleNodeSelect).toHaveBeenCalledWith('node-1')
+      expect(handleNodeDataUpdate).toHaveBeenCalledWith({
+        id: 'node-1',
+        data: { _isSingleRun: true },
+      })
+      expect(handleSyncWorkflowDraft).toHaveBeenCalledWith(true)
+    })
+
+    it('should hide the help link when showHelpLink is false', async () => {
+      const user = userEvent.setup()
+      const { container } = renderComponent(false)
+
+      await user.click(container.querySelector('.panel-operator-trigger') as HTMLElement)
+
+      expect(screen.queryByText('workflow.panel.helpLink')).not.toBeInTheDocument()
+      expect(screen.getByText('Node description')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/variable/match-schema-type.spec.ts b/web/app/components/workflow/nodes/_base/components/variable/__tests__/match-schema-type.spec.ts
similarity index 98%
rename from web/app/components/workflow/nodes/_base/components/variable/match-schema-type.spec.ts
rename to web/app/components/workflow/nodes/_base/components/variable/__tests__/match-schema-type.spec.ts
index ef7a24faf5..0330ae47fc 100644
--- a/web/app/components/workflow/nodes/_base/components/variable/match-schema-type.spec.ts
+++ b/web/app/components/workflow/nodes/_base/components/variable/__tests__/match-schema-type.spec.ts
@@ -1,4 +1,4 @@
-import matchTheSchemaType from './match-schema-type'
+import matchTheSchemaType from '../match-schema-type'
 
 describe('match the schema type', () => {
   it('should return true for identical primitive types', () => {
diff --git a/web/app/components/workflow/nodes/_base/components/variable/variable-label/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/variable/variable-label/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..cb44e93427
--- /dev/null
+++ b/web/app/components/workflow/nodes/_base/components/variable/variable-label/__tests__/index.spec.tsx
@@ -0,0 +1,43 @@
+import { render, screen } from '@testing-library/react'
+import { BlockEnum, VarType } from '@/app/components/workflow/types'
+import { VariableLabelInNode, VariableLabelInText } from '../index'
+
+describe('variable-label index', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The barrel exports should render the node and text variants with the expected variable metadata.
+  describe('Rendering', () => {
+    it('should render the node variant with node label and variable type', () => {
+      render(
+        <VariableLabelInNode
+          nodeType={BlockEnum.Code}
+          nodeTitle="Source Node"
+          variables={['source-node', 'answer']}
+          variableType={VarType.string}
+        />,
+      )
+
+      expect(screen.getByText('Source Node')).toBeInTheDocument()
+      expect(screen.getByText('answer')).toBeInTheDocument()
+      expect(screen.getByText('String')).toBeInTheDocument()
+    })
+
+    it('should render the text variant with the shortened variable path', () => {
+      render(
+        <VariableLabelInText
+          nodeType={BlockEnum.Code}
+          nodeTitle="Source Node"
+          variables={['source-node', 'payload', 'answer']}
+          notShowFullPath
+          isExceptionVariable
+        />,
+      )
+
+      expect(screen.getByTestId('exception-variable')).toBeInTheDocument()
+      expect(screen.getByText('Source Node')).toBeInTheDocument()
+      expect(screen.getByText('answer')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/_base/components/workflow-panel/index.spec.tsx b/web/app/components/workflow/nodes/_base/components/workflow-panel/__tests__/index.spec.tsx
similarity index 100%
rename from web/app/components/workflow/nodes/_base/components/workflow-panel/index.spec.tsx
rename to web/app/components/workflow/nodes/_base/components/workflow-panel/__tests__/index.spec.tsx
diff --git a/web/app/components/workflow/nodes/answer/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/answer/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..38a8b88c81
--- /dev/null
+++ b/web/app/components/workflow/nodes/answer/__tests__/node.spec.tsx
@@ -0,0 +1,67 @@
+import type { AnswerNodeType } from '../types'
+import { screen } from '@testing-library/react'
+import { createNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderNodeComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { useWorkflow } from '@/app/components/workflow/hooks'
+import { BlockEnum } from '@/app/components/workflow/types'
+import Node from '../node'
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useWorkflow: vi.fn(),
+  }
+})
+
+const mockUseWorkflow = vi.mocked(useWorkflow)
+
+const createNodeData = (overrides: Partial<AnswerNodeType> = {}): AnswerNodeType => ({
+  title: 'Answer',
+  desc: '',
+  type: BlockEnum.Answer,
+  variables: [],
+  answer: 'Plain answer',
+  ...overrides,
+})
+
+describe('AnswerNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseWorkflow.mockReturnValue({
+      getBeforeNodesInSameBranchIncludeParent: () => [],
+    } as unknown as ReturnType<typeof useWorkflow>)
+  })
+
+  // The node should render the localized panel title and plain answer text.
+  describe('Rendering', () => {
+    it('should render the answer title and text content', () => {
+      renderNodeComponent(Node, createNodeData())
+
+      expect(screen.getByText('workflow.nodes.answer.answer')).toBeInTheDocument()
+      expect(screen.getByText('Plain answer')).toBeInTheDocument()
+    })
+
+    it('should render referenced variables inside the readonly content', () => {
+      mockUseWorkflow.mockReturnValue({
+        getBeforeNodesInSameBranchIncludeParent: () => [
+          createNode({
+            id: 'source-node',
+            data: {
+              type: BlockEnum.Code,
+              title: 'Source Node',
+            },
+          }),
+        ],
+      } as unknown as ReturnType<typeof useWorkflow>)
+
+      renderNodeComponent(Node, createNodeData({
+        answer: 'Hello {{#source-node.name#}}',
+      }))
+
+      expect(screen.getByText('Hello')).toBeInTheDocument()
+      expect(screen.getByText('Source Node')).toBeInTheDocument()
+      expect(screen.getByText('name')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/code/code-parser.spec.ts b/web/app/components/workflow/nodes/code/__tests__/code-parser.spec.ts
similarity index 98%
rename from web/app/components/workflow/nodes/code/code-parser.spec.ts
rename to web/app/components/workflow/nodes/code/__tests__/code-parser.spec.ts
index d7fd590f28..ea2d7f49ef 100644
--- a/web/app/components/workflow/nodes/code/code-parser.spec.ts
+++ b/web/app/components/workflow/nodes/code/__tests__/code-parser.spec.ts
@@ -1,6 +1,6 @@
-import { VarType } from '../../types'
-import { extractFunctionParams, extractReturnType } from './code-parser'
-import { CodeLanguage } from './types'
+import { VarType } from '../../../types'
+import { extractFunctionParams, extractReturnType } from '../code-parser'
+import { CodeLanguage } from '../types'
 
 const SAMPLE_CODES = {
   python3: {
diff --git a/web/app/components/workflow/nodes/data-source-empty/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/data-source-empty/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..48e679813d
--- /dev/null
+++ b/web/app/components/workflow/nodes/data-source-empty/__tests__/index.spec.tsx
@@ -0,0 +1,101 @@
+import type { ComponentProps, ReactNode } from 'react'
+import type { OnSelectBlock } from '@/app/components/workflow/types'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { BlockEnum } from '@/app/components/workflow/types'
+import DataSourceEmptyNode from '../index'
+
+const mockUseReplaceDataSourceNode = vi.hoisted(() => vi.fn())
+
+vi.mock('../hooks', () => ({
+  useReplaceDataSourceNode: mockUseReplaceDataSourceNode,
+}))
+
+vi.mock('@/app/components/workflow/block-selector', () => ({
+  default: ({
+    onSelect,
+    trigger,
+  }: {
+    onSelect: OnSelectBlock
+    trigger: ((open?: boolean) => ReactNode) | ReactNode
+  }) => (
+    <div>
+      {typeof trigger === 'function' ? trigger(false) : trigger}
+      <button
+        type="button"
+        onClick={() => onSelect(BlockEnum.DataSource, {
+          plugin_id: 'plugin-id',
+          provider_type: 'datasource',
+          provider_name: 'file',
+          datasource_name: 'local-file',
+          datasource_label: 'Local File',
+          title: 'Local File',
+        })}
+      >
+        select data source
+      </button>
+    </div>
+  ),
+}))
+
+type DataSourceEmptyNodeProps = ComponentProps<typeof DataSourceEmptyNode>
+
+const createNodeProps = (): DataSourceEmptyNodeProps => ({
+  id: 'data-source-empty-node',
+  data: {
+    width: 240,
+    height: 88,
+  },
+  type: 'default',
+  selected: false,
+  zIndex: 0,
+  isConnectable: true,
+  xPos: 0,
+  yPos: 0,
+  dragging: false,
+  dragHandle: undefined,
+} as unknown as DataSourceEmptyNodeProps)
+
+describe('DataSourceEmptyNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseReplaceDataSourceNode.mockReturnValue({
+      handleReplaceNode: vi.fn(),
+    })
+  })
+
+  // The empty datasource node should render the add trigger and forward selector choices.
+  describe('Rendering and Selection', () => {
+    it('should render the datasource add trigger', () => {
+      render(
+        <DataSourceEmptyNode {...createNodeProps()} />,
+      )
+
+      expect(screen.getByText('workflow.nodes.dataSource.add')).toBeInTheDocument()
+      expect(screen.getByText('workflow.blocks.datasource')).toBeInTheDocument()
+    })
+
+    it('should forward block selections to the replace hook', async () => {
+      const user = userEvent.setup()
+      const handleReplaceNode = vi.fn()
+      mockUseReplaceDataSourceNode.mockReturnValue({
+        handleReplaceNode,
+      })
+
+      render(
+        <DataSourceEmptyNode {...createNodeProps()} />,
+      )
+
+      await user.click(screen.getByRole('button', { name: 'select data source' }))
+
+      expect(handleReplaceNode).toHaveBeenCalledWith(BlockEnum.DataSource, {
+        plugin_id: 'plugin-id',
+        provider_type: 'datasource',
+        provider_name: 'file',
+        datasource_name: 'local-file',
+        datasource_label: 'Local File',
+        title: 'Local File',
+      })
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/data-source/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/data-source/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..686e145ef3
--- /dev/null
+++ b/web/app/components/workflow/nodes/data-source/__tests__/node.spec.tsx
@@ -0,0 +1,76 @@
+import type { DataSourceNodeType } from '../types'
+import { render, screen } from '@testing-library/react'
+import { useNodePluginInstallation } from '@/app/components/workflow/hooks/use-node-plugin-installation'
+import { BlockEnum } from '@/app/components/workflow/types'
+import Node from '../node'
+
+const mockInstallPluginButton = vi.hoisted(() => vi.fn(({ uniqueIdentifier }: { uniqueIdentifier: string }) => (
+  <button type="button">{uniqueIdentifier}</button>
+)))
+
+vi.mock('@/app/components/workflow/hooks/use-node-plugin-installation', () => ({
+  useNodePluginInstallation: vi.fn(),
+}))
+
+vi.mock('@/app/components/workflow/nodes/_base/components/install-plugin-button', () => ({
+  InstallPluginButton: mockInstallPluginButton,
+}))
+
+const mockUseNodePluginInstallation = vi.mocked(useNodePluginInstallation)
+
+const createNodeData = (overrides: Partial<DataSourceNodeType> = {}): DataSourceNodeType => ({
+  title: 'Datasource',
+  desc: '',
+  type: BlockEnum.DataSource,
+  plugin_id: 'plugin-id',
+  provider_type: 'datasource',
+  provider_name: 'file',
+  datasource_name: 'local-file',
+  datasource_label: 'Local File',
+  datasource_parameters: {},
+  datasource_configurations: {},
+  plugin_unique_identifier: 'plugin-id@1.0.0',
+  ...overrides,
+})
+
+describe('DataSourceNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseNodePluginInstallation.mockReturnValue({
+      isChecking: false,
+      isMissing: false,
+      uniqueIdentifier: undefined,
+      canInstall: false,
+      onInstallSuccess: vi.fn(),
+      shouldDim: false,
+    })
+  })
+
+  // The node should only expose install affordances when the backing plugin is missing and installable.
+  describe('Plugin Installation', () => {
+    it('should render the install button when the datasource plugin is missing', () => {
+      mockUseNodePluginInstallation.mockReturnValue({
+        isChecking: false,
+        isMissing: true,
+        uniqueIdentifier: 'plugin-id@1.0.0',
+        canInstall: true,
+        onInstallSuccess: vi.fn(),
+        shouldDim: true,
+      })
+
+      render(<Node id="data-source-node" data={createNodeData()} />)
+
+      expect(screen.getByRole('button', { name: 'plugin-id@1.0.0' })).toBeInTheDocument()
+      expect(mockInstallPluginButton).toHaveBeenCalledWith(expect.objectContaining({
+        uniqueIdentifier: 'plugin-id@1.0.0',
+        extraIdentifiers: ['plugin-id', 'file'],
+      }), undefined)
+    })
+
+    it('should render nothing when installation is unavailable', () => {
+      const { container } = render(<Node id="data-source-node" data={createNodeData()} />)
+
+      expect(container).toBeEmptyDOMElement()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/end/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/end/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..de5e819267
--- /dev/null
+++ b/web/app/components/workflow/nodes/end/__tests__/node.spec.tsx
@@ -0,0 +1,93 @@
+import type { EndNodeType } from '../types'
+import { screen } from '@testing-library/react'
+import { createNode, createStartNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderNodeComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  useIsChatMode,
+  useWorkflow,
+  useWorkflowVariables,
+} from '@/app/components/workflow/hooks'
+import { BlockEnum } from '@/app/components/workflow/types'
+import Node from '../node'
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useWorkflow: vi.fn(),
+    useWorkflowVariables: vi.fn(),
+    useIsChatMode: vi.fn(),
+  }
+})
+
+const mockUseWorkflow = vi.mocked(useWorkflow)
+const mockUseWorkflowVariables = vi.mocked(useWorkflowVariables)
+const mockUseIsChatMode = vi.mocked(useIsChatMode)
+
+const createNodeData = (overrides: Partial<EndNodeType> = {}): EndNodeType => ({
+  title: 'End',
+  desc: '',
+  type: BlockEnum.End,
+  outputs: [{
+    variable: 'answer',
+    value_selector: ['source-node', 'answer'],
+  }],
+  ...overrides,
+})
+
+describe('EndNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseWorkflow.mockReturnValue({
+      getBeforeNodesInSameBranch: () => [
+        createStartNode(),
+        createNode({
+          id: 'source-node',
+          data: {
+            type: BlockEnum.Code,
+            title: 'Source Node',
+          },
+        }),
+      ],
+    } as unknown as ReturnType<typeof useWorkflow>)
+    mockUseWorkflowVariables.mockReturnValue({
+      getNodeAvailableVars: () => [],
+      getCurrentVariableType: () => 'string',
+    } as unknown as ReturnType<typeof useWorkflowVariables>)
+    mockUseIsChatMode.mockReturnValue(false)
+  })
+
+  // The node should surface only resolved outputs and ignore empty selectors.
+  describe('Rendering', () => {
+    it('should render resolved output labels for referenced nodes', () => {
+      renderNodeComponent(Node, createNodeData())
+
+      expect(screen.getByText('Source Node')).toBeInTheDocument()
+      expect(screen.getByText('answer')).toBeInTheDocument()
+      expect(screen.getByText('String')).toBeInTheDocument()
+    })
+
+    it('should fall back to the start node when the selector node cannot be found', () => {
+      renderNodeComponent(Node, createNodeData({
+        outputs: [{
+          variable: 'answer',
+          value_selector: ['missing-node', 'answer'],
+        }],
+      }))
+
+      expect(screen.getByText('Start')).toBeInTheDocument()
+      expect(screen.getByText('answer')).toBeInTheDocument()
+    })
+
+    it('should render nothing when every output selector is empty', () => {
+      const { container } = renderNodeComponent(Node, createNodeData({
+        outputs: [{
+          variable: 'answer',
+          value_selector: [],
+        }],
+      }))
+
+      expect(container).toBeEmptyDOMElement()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/iteration-start/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/iteration-start/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..61d37cbec1
--- /dev/null
+++ b/web/app/components/workflow/nodes/iteration-start/__tests__/index.spec.tsx
@@ -0,0 +1,94 @@
+import type { NodeProps } from 'reactflow'
+import type { CommonNodeType } from '@/app/components/workflow/types'
+import { render, waitFor } from '@testing-library/react'
+import { createNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  useAvailableBlocks,
+  useIsChatMode,
+  useNodesInteractions,
+  useNodesReadOnly,
+} from '@/app/components/workflow/hooks'
+import { BlockEnum } from '@/app/components/workflow/types'
+import IterationStartNode, { IterationStartNodeDumb } from '../index'
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useAvailableBlocks: vi.fn(),
+    useNodesInteractions: vi.fn(),
+    useNodesReadOnly: vi.fn(),
+    useIsChatMode: vi.fn(),
+  }
+})
+
+const mockUseAvailableBlocks = vi.mocked(useAvailableBlocks)
+const mockUseNodesInteractions = vi.mocked(useNodesInteractions)
+const mockUseNodesReadOnly = vi.mocked(useNodesReadOnly)
+const mockUseIsChatMode = vi.mocked(useIsChatMode)
+
+const createAvailableBlocksResult = (): ReturnType<typeof useAvailableBlocks> => ({
+  getAvailableBlocks: vi.fn(() => ({
+    availablePrevBlocks: [],
+    availableNextBlocks: [],
+  })),
+  availablePrevBlocks: [],
+  availableNextBlocks: [],
+})
+
+const FlowNode = (props: NodeProps<CommonNodeType>) => (
+  <IterationStartNode {...props} />
+)
+
+const renderFlowNode = () =>
+  renderWorkflowFlowComponent(<div />, {
+    nodes: [createNode({
+      id: 'iteration-start-node',
+      type: 'iterationStartNode',
+      data: {
+        title: 'Iteration Start',
+        desc: '',
+        type: BlockEnum.IterationStart,
+      },
+    })],
+    edges: [],
+    reactFlowProps: {
+      nodeTypes: { iterationStartNode: FlowNode },
+    },
+    canvasStyle: {
+      width: 400,
+      height: 300,
+    },
+  })
+
+describe('IterationStartNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseAvailableBlocks.mockReturnValue(createAvailableBlocksResult())
+    mockUseNodesInteractions.mockReturnValue({
+      handleNodeAdd: vi.fn(),
+    } as unknown as ReturnType<typeof useNodesInteractions>)
+    mockUseNodesReadOnly.mockReturnValue({
+      getNodesReadOnly: () => false,
+    } as unknown as ReturnType<typeof useNodesReadOnly>)
+    mockUseIsChatMode.mockReturnValue(false)
+  })
+
+  // The start marker should provide the source handle in flow mode and omit it in dumb mode.
+  describe('Rendering', () => {
+    it('should render the source handle in the ReactFlow context', async () => {
+      const { container } = renderFlowNode()
+
+      await waitFor(() => {
+        expect(container.querySelector('[data-handleid="source"]')).toBeInTheDocument()
+      })
+    })
+
+    it('should render the dumb variant without any source handle', () => {
+      const { container } = render(<IterationStartNodeDumb />)
+
+      expect(container.querySelector('[data-handleid="source"]')).not.toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/default.spec.ts b/web/app/components/workflow/nodes/knowledge-base/__tests__/default.spec.ts
similarity index 95%
rename from web/app/components/workflow/nodes/knowledge-base/default.spec.ts
rename to web/app/components/workflow/nodes/knowledge-base/__tests__/default.spec.ts
index becc6cb9d8..7b2ad9268e 100644
--- a/web/app/components/workflow/nodes/knowledge-base/default.spec.ts
+++ b/web/app/components/workflow/nodes/knowledge-base/__tests__/default.spec.ts
@@ -1,12 +1,12 @@
-import type { KnowledgeBaseNodeType } from './types'
+import type { KnowledgeBaseNodeType } from '../types'
 import type { Model, ModelItem } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import {
   ConfigurationMethodEnum,
   ModelStatusEnum,
   ModelTypeEnum,
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
-import nodeDefault from './default'
-import { ChunkStructureEnum, IndexMethodEnum, RetrievalSearchMethodEnum } from './types'
+import nodeDefault from '../default'
+import { ChunkStructureEnum, IndexMethodEnum, RetrievalSearchMethodEnum } from '../types'
 
 const t = (key: string) => key
 
diff --git a/web/app/components/workflow/nodes/knowledge-base/node.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/__tests__/node.spec.tsx
similarity index 97%
rename from web/app/components/workflow/nodes/knowledge-base/node.spec.tsx
rename to web/app/components/workflow/nodes/knowledge-base/__tests__/node.spec.tsx
index 19cf6a0626..5ce60ca959 100644
--- a/web/app/components/workflow/nodes/knowledge-base/node.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/__tests__/node.spec.tsx
@@ -1,4 +1,4 @@
-import type { KnowledgeBaseNodeType } from './types'
+import type { KnowledgeBaseNodeType } from '../types'
 import type { ModelItem } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import type { CommonNodeType } from '@/app/components/workflow/types'
 import { render, screen } from '@testing-library/react'
@@ -8,12 +8,12 @@ import {
   ModelTypeEnum,
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import { BlockEnum } from '@/app/components/workflow/types'
-import Node from './node'
+import Node from '../node'
 import {
   ChunkStructureEnum,
   IndexMethodEnum,
   RetrievalSearchMethodEnum,
-} from './types'
+} from '../types'
 
 const mockUseModelList = vi.hoisted(() => vi.fn())
 const mockUseSettingsDisplay = vi.hoisted(() => vi.fn())
@@ -36,11 +36,11 @@ vi.mock('@/app/components/header/account-setting/model-provider-page/hooks', asy
   }
 })
 
-vi.mock('./hooks/use-settings-display', () => ({
+vi.mock('../hooks/use-settings-display', () => ({
   useSettingsDisplay: mockUseSettingsDisplay,
 }))
 
-vi.mock('./hooks/use-embedding-model-status', () => ({
+vi.mock('../hooks/use-embedding-model-status', () => ({
   useEmbeddingModelStatus: mockUseEmbeddingModelStatus,
 }))
 
diff --git a/web/app/components/workflow/nodes/knowledge-base/panel.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/__tests__/panel.spec.tsx
similarity index 94%
rename from web/app/components/workflow/nodes/knowledge-base/panel.spec.tsx
rename to web/app/components/workflow/nodes/knowledge-base/__tests__/panel.spec.tsx
index 2f76449b6c..0a15845445 100644
--- a/web/app/components/workflow/nodes/knowledge-base/panel.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/__tests__/panel.spec.tsx
@@ -2,8 +2,8 @@ import type { ReactNode } from 'react'
 import type { PanelProps } from '@/types/workflow'
 import { render, screen } from '@testing-library/react'
 import { ModelTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
-import Panel from './panel'
-import { ChunkStructureEnum, IndexMethodEnum, RetrievalSearchMethodEnum } from './types'
+import Panel from '../panel'
+import { ChunkStructureEnum, IndexMethodEnum, RetrievalSearchMethodEnum } from '../types'
 
 const mockUseModelList = vi.hoisted(() => vi.fn())
 const mockUseQuery = vi.hoisted(() => vi.fn())
@@ -35,7 +35,7 @@ vi.mock('@/app/components/workflow/hooks', () => ({
   useNodesReadOnly: () => ({ nodesReadOnly: false }),
 }))
 
-vi.mock('./hooks/use-config', () => ({
+vi.mock('../hooks/use-config', () => ({
   useConfig: () => ({
     handleChunkStructureChange: vi.fn(),
     handleIndexMethodChange: vi.fn(),
@@ -54,7 +54,7 @@ vi.mock('./hooks/use-config', () => ({
   }),
 }))
 
-vi.mock('./hooks/use-embedding-model-status', () => ({
+vi.mock('../hooks/use-embedding-model-status', () => ({
   useEmbeddingModelStatus: mockUseEmbeddingModelStatus,
 }))
 
@@ -92,19 +92,19 @@ vi.mock('@/app/components/datasets/settings/summary-index-setting', () => ({
   default: mockSummaryIndexSetting,
 }))
 
-vi.mock('./components/chunk-structure', () => ({
+vi.mock('../components/chunk-structure', () => ({
   default: mockChunkStructure,
 }))
 
-vi.mock('./components/index-method', () => ({
+vi.mock('../components/index-method', () => ({
   default: () => <div data-testid="index-method" />,
 }))
 
-vi.mock('./components/embedding-model', () => ({
+vi.mock('../components/embedding-model', () => ({
   default: mockEmbeddingModel,
 }))
 
-vi.mock('./components/retrieval-setting', () => ({
+vi.mock('../components/retrieval-setting', () => ({
   default: () => <div data-testid="retrieval-setting" />,
 }))
 
diff --git a/web/app/components/workflow/nodes/knowledge-base/__tests__/use-single-run-form-params.spec.ts b/web/app/components/workflow/nodes/knowledge-base/__tests__/use-single-run-form-params.spec.ts
new file mode 100644
index 0000000000..ce0216b275
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/__tests__/use-single-run-form-params.spec.ts
@@ -0,0 +1,93 @@
+import type { KnowledgeBaseNodeType } from '../types'
+import { act, renderHook } from '@testing-library/react'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import { ChunkStructureEnum, IndexMethodEnum, RetrievalSearchMethodEnum } from '../types'
+import useSingleRunFormParams from '../use-single-run-form-params'
+
+const createPayload = (overrides: Partial<KnowledgeBaseNodeType> = {}): KnowledgeBaseNodeType => ({
+  title: 'Knowledge Base',
+  desc: '',
+  type: BlockEnum.KnowledgeBase,
+  index_chunk_variable_selector: ['chunks', 'results'],
+  chunk_structure: ChunkStructureEnum.general,
+  indexing_technique: IndexMethodEnum.QUALIFIED,
+  embedding_model: 'text-embedding-3-large',
+  embedding_model_provider: 'openai',
+  keyword_number: 10,
+  retrieval_model: {
+    search_method: RetrievalSearchMethodEnum.semantic,
+    reranking_enable: false,
+    top_k: 3,
+    score_threshold_enabled: false,
+    score_threshold: 0.5,
+  },
+  ...overrides,
+})
+
+describe('useSingleRunFormParams', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The hook should expose the single query form and map chunk dependencies for single-run execution.
+  describe('Forms', () => {
+    it('should build the query form with the current run input value', () => {
+      const { result } = renderHook(() => useSingleRunFormParams({
+        id: 'knowledge-base-1',
+        payload: createPayload(),
+        runInputData: { query: 'what is dify' },
+        getInputVars: vi.fn(),
+        setRunInputData: vi.fn(),
+        toVarInputs: vi.fn(),
+      }))
+
+      expect(result.current.forms).toHaveLength(1)
+      expect(result.current.forms[0].inputs).toEqual([{
+        label: 'workflow.nodes.common.inputVars',
+        variable: 'query',
+        type: InputVarType.paragraph,
+        required: true,
+      }])
+      expect(result.current.forms[0].values).toEqual({ query: 'what is dify' })
+    })
+
+    it('should update run input data when the query changes', () => {
+      const setRunInputData = vi.fn()
+      const { result } = renderHook(() => useSingleRunFormParams({
+        id: 'knowledge-base-1',
+        payload: createPayload(),
+        runInputData: { query: 'old query' },
+        getInputVars: vi.fn(),
+        setRunInputData,
+        toVarInputs: vi.fn(),
+      }))
+
+      act(() => {
+        result.current.forms[0].onChange({ query: 'new query' })
+      })
+
+      expect(setRunInputData).toHaveBeenCalledWith({ query: 'new query' })
+    })
+  })
+
+  describe('Dependencies', () => {
+    it('should expose the chunk selector as the only dependent variable', () => {
+      const payload = createPayload({
+        index_chunk_variable_selector: ['node-1', 'chunks'],
+      })
+
+      const { result } = renderHook(() => useSingleRunFormParams({
+        id: 'knowledge-base-1',
+        payload,
+        runInputData: {},
+        getInputVars: vi.fn(),
+        setRunInputData: vi.fn(),
+        toVarInputs: vi.fn(),
+      }))
+
+      expect(result.current.getDependentVars()).toEqual([['node-1', 'chunks']])
+      expect(result.current.getDependentVar('query')).toEqual(['node-1', 'chunks'])
+      expect(result.current.getDependentVar('other')).toBeUndefined()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/utils.spec.ts b/web/app/components/workflow/nodes/knowledge-base/__tests__/utils.spec.ts
similarity index 99%
rename from web/app/components/workflow/nodes/knowledge-base/utils.spec.ts
rename to web/app/components/workflow/nodes/knowledge-base/__tests__/utils.spec.ts
index fc911e0133..394690c963 100644
--- a/web/app/components/workflow/nodes/knowledge-base/utils.spec.ts
+++ b/web/app/components/workflow/nodes/knowledge-base/__tests__/utils.spec.ts
@@ -1,4 +1,4 @@
-import type { KnowledgeBaseNodeType } from './types'
+import type { KnowledgeBaseNodeType } from '../types'
 import type { Model, ModelItem } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import {
   ConfigurationMethodEnum,
@@ -9,14 +9,14 @@ import {
   ChunkStructureEnum,
   IndexMethodEnum,
   RetrievalSearchMethodEnum,
-} from './types'
+} from '../types'
 import {
   getKnowledgeBaseValidationIssue,
   getKnowledgeBaseValidationMessage,
   isHighQualitySearchMethod,
   isKnowledgeBaseEmbeddingIssue,
   KnowledgeBaseValidationIssueCode,
-} from './utils'
+} from '../utils'
 
 const makeEmbeddingModelList = (status: ModelStatusEnum): Model[] => {
   return [
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/embedding-model.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/embedding-model.spec.tsx
similarity index 97%
rename from web/app/components/workflow/nodes/knowledge-base/components/embedding-model.spec.tsx
rename to web/app/components/workflow/nodes/knowledge-base/components/__tests__/embedding-model.spec.tsx
index fe8cacd76e..db8bdeb0e1 100644
--- a/web/app/components/workflow/nodes/knowledge-base/components/embedding-model.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/embedding-model.spec.tsx
@@ -1,7 +1,7 @@
 import type { ReactNode } from 'react'
 import { render } from '@testing-library/react'
 import { ModelTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
-import EmbeddingModel from './embedding-model'
+import EmbeddingModel from '../embedding-model'
 
 const mockUseModelList = vi.hoisted(() => vi.fn())
 const mockModelSelector = vi.hoisted(() => vi.fn(() => <div data-testid="model-selector">selector</div>))
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/__tests__/index-method.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/index-method.spec.tsx
new file mode 100644
index 0000000000..a11f93e0b0
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/index-method.spec.tsx
@@ -0,0 +1,74 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import { ChunkStructureEnum, IndexMethodEnum } from '../../types'
+import IndexMethod from '../index-method'
+
+describe('IndexMethod', () => {
+  it('should render both index method options for general chunks and notify option changes', () => {
+    const onIndexMethodChange = vi.fn()
+
+    render(
+      <IndexMethod
+        chunkStructure={ChunkStructureEnum.general}
+        indexMethod={IndexMethodEnum.QUALIFIED}
+        keywordNumber={5}
+        onIndexMethodChange={onIndexMethodChange}
+        onKeywordNumberChange={vi.fn()}
+      />,
+    )
+
+    expect(screen.getByText('datasetCreation.stepTwo.qualified')).toBeInTheDocument()
+    expect(screen.getByText('datasetSettings.form.indexMethodEconomy')).toBeInTheDocument()
+    expect(screen.getByText('datasetCreation.stepTwo.recommend')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('datasetSettings.form.indexMethodEconomy'))
+
+    expect(onIndexMethodChange).toHaveBeenCalledWith(IndexMethodEnum.ECONOMICAL)
+  })
+
+  it('should update the keyword number when the economical option is active', () => {
+    const onKeywordNumberChange = vi.fn()
+    const { container } = render(
+      <IndexMethod
+        chunkStructure={ChunkStructureEnum.general}
+        indexMethod={IndexMethodEnum.ECONOMICAL}
+        keywordNumber={5}
+        onIndexMethodChange={vi.fn()}
+        onKeywordNumberChange={onKeywordNumberChange}
+      />,
+    )
+
+    fireEvent.change(container.querySelector('input') as HTMLInputElement, { target: { value: '7' } })
+
+    expect(onKeywordNumberChange).toHaveBeenCalledWith(7)
+  })
+
+  it('should disable keyword controls when readonly is enabled', () => {
+    const { container } = render(
+      <IndexMethod
+        chunkStructure={ChunkStructureEnum.general}
+        indexMethod={IndexMethodEnum.ECONOMICAL}
+        keywordNumber={5}
+        onIndexMethodChange={vi.fn()}
+        onKeywordNumberChange={vi.fn()}
+        readonly
+      />,
+    )
+
+    expect(container.querySelector('input')).toBeDisabled()
+  })
+
+  it('should hide the economical option for non-general chunk structures', () => {
+    render(
+      <IndexMethod
+        chunkStructure={ChunkStructureEnum.parent_child}
+        indexMethod={IndexMethodEnum.QUALIFIED}
+        keywordNumber={5}
+        onIndexMethodChange={vi.fn()}
+        onKeywordNumberChange={vi.fn()}
+      />,
+    )
+
+    expect(screen.getByText('datasetCreation.stepTwo.qualified')).toBeInTheDocument()
+    expect(screen.queryByText('datasetSettings.form.indexMethodEconomy')).not.toBeInTheDocument()
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/__tests__/option-card.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/option-card.spec.tsx
new file mode 100644
index 0000000000..0c4e53b8fd
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/__tests__/option-card.spec.tsx
@@ -0,0 +1,74 @@
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import OptionCard from '../option-card'
+
+describe('OptionCard', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The card should expose selection, child expansion, and readonly click behavior.
+  describe('Interaction', () => {
+    it('should call onClick with the card id and render active children', async () => {
+      const user = userEvent.setup()
+      const onClick = vi.fn()
+
+      render(
+        <OptionCard
+          id="qualified"
+          selectedId="qualified"
+          title="High Quality"
+          description="Use embedding retrieval."
+          isRecommended
+          enableRadio
+          onClick={onClick}
+        >
+          <div>Advanced controls</div>
+        </OptionCard>,
+      )
+
+      expect(screen.getByText('datasetCreation.stepTwo.recommend')).toBeInTheDocument()
+      expect(screen.getByText('Advanced controls')).toBeInTheDocument()
+
+      await user.click(screen.getByText('High Quality'))
+
+      expect(onClick).toHaveBeenCalledWith('qualified')
+    })
+
+    it('should not trigger selection when the card is readonly', async () => {
+      const user = userEvent.setup()
+      const onClick = vi.fn()
+
+      render(
+        <OptionCard
+          id="economical"
+          title="Economical"
+          readonly
+          onClick={onClick}
+        />,
+      )
+
+      await user.click(screen.getByText('Economical'))
+
+      expect(onClick).not.toHaveBeenCalled()
+    })
+
+    it('should support function-based wrapper, class, and icon props without enabling selection', () => {
+      render(
+        <OptionCard
+          id="inactive"
+          selectedId="qualified"
+          title="Inactive card"
+          enableSelect={false}
+          wrapperClassName={isActive => (isActive ? 'wrapper-active' : 'wrapper-inactive')}
+          className={isActive => (isActive ? 'body-active' : 'body-inactive')}
+          icon={isActive => <span data-testid="option-icon">{isActive ? 'active' : 'inactive'}</span>}
+        />,
+      )
+
+      expect(screen.getByText('Inactive card').closest('.wrapper-inactive')).toBeInTheDocument()
+      expect(screen.getByTestId('option-icon')).toHaveTextContent('inactive')
+      expect(screen.getByText('Inactive card').closest('.body-inactive')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/hooks.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/hooks.spec.tsx
new file mode 100644
index 0000000000..a7620d4317
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/hooks.spec.tsx
@@ -0,0 +1,47 @@
+import { render, renderHook } from '@testing-library/react'
+import { ChunkStructureEnum } from '../../../types'
+import { useChunkStructure } from '../hooks'
+
+const renderIcon = (icon: ReturnType<typeof useChunkStructure>['options'][number]['icon'], isActive: boolean) => {
+  if (typeof icon !== 'function')
+    throw new Error('expected icon renderer')
+
+  return icon(isActive)
+}
+
+describe('useChunkStructure', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The hook should expose ordered options and a lookup map for every chunk structure variant.
+  describe('Options', () => {
+    it('should return all chunk structure options and map them by id', () => {
+      const { result } = renderHook(() => useChunkStructure())
+
+      expect(result.current.options).toHaveLength(3)
+      expect(result.current.options.map(option => option.id)).toEqual([
+        ChunkStructureEnum.general,
+        ChunkStructureEnum.parent_child,
+        ChunkStructureEnum.question_answer,
+      ])
+      expect(result.current.optionMap[ChunkStructureEnum.general].title).toBe('datasetCreation.stepTwo.general')
+      expect(result.current.optionMap[ChunkStructureEnum.parent_child].title).toBe('datasetCreation.stepTwo.parentChild')
+      expect(result.current.optionMap[ChunkStructureEnum.question_answer].title).toBe('Q&A')
+    })
+
+    it('should expose active and inactive icon renderers for every option', () => {
+      const { result } = renderHook(() => useChunkStructure())
+
+      const generalInactive = render(<>{renderIcon(result.current.optionMap[ChunkStructureEnum.general].icon, false)}</>).container.firstChild as HTMLElement
+      const generalActive = render(<>{renderIcon(result.current.optionMap[ChunkStructureEnum.general].icon, true)}</>).container.firstChild as HTMLElement
+      const parentChildActive = render(<>{renderIcon(result.current.optionMap[ChunkStructureEnum.parent_child].icon, true)}</>).container.firstChild as HTMLElement
+      const questionAnswerActive = render(<>{renderIcon(result.current.optionMap[ChunkStructureEnum.question_answer].icon, true)}</>).container.firstChild as HTMLElement
+
+      expect(generalInactive).toHaveClass('text-text-tertiary')
+      expect(generalActive).toHaveClass('text-util-colors-indigo-indigo-600')
+      expect(parentChildActive).toHaveClass('text-util-colors-blue-light-blue-light-500')
+      expect(questionAnswerActive).toHaveClass('text-util-colors-teal-teal-600')
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/index.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/index.spec.tsx
similarity index 91%
rename from web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/index.spec.tsx
rename to web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/index.spec.tsx
index f93344ca60..454d57e5b5 100644
--- a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/index.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/index.spec.tsx
@@ -1,7 +1,7 @@
 import type { ReactNode } from 'react'
 import { render, screen } from '@testing-library/react'
-import { ChunkStructureEnum } from '../../types'
-import ChunkStructure from './index'
+import { ChunkStructureEnum } from '../../../types'
+import ChunkStructure from '../index'
 
 const mockUseChunkStructure = vi.hoisted(() => vi.fn())
 
@@ -15,15 +15,15 @@ vi.mock('@/app/components/workflow/nodes/_base/components/layout', () => ({
   ),
 }))
 
-vi.mock('./hooks', () => ({
+vi.mock('../hooks', () => ({
   useChunkStructure: mockUseChunkStructure,
 }))
 
-vi.mock('../option-card', () => ({
+vi.mock('../../option-card', () => ({
   default: ({ title }: { title: string }) => <div data-testid="option-card">{title}</div>,
 }))
 
-vi.mock('./selector', () => ({
+vi.mock('../selector', () => ({
   default: ({ trigger, value }: { trigger?: ReactNode, value?: string }) => (
     <div data-testid="selector">
       {value ?? 'no-value'}
@@ -32,7 +32,7 @@ vi.mock('./selector', () => ({
   ),
 }))
 
-vi.mock('./instruction', () => ({
+vi.mock('../instruction', () => ({
   default: ({ className }: { className?: string }) => <div data-testid="instruction" className={className}>Instruction</div>,
 }))
 
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/selector.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/selector.spec.tsx
new file mode 100644
index 0000000000..617944e4ee
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/__tests__/selector.spec.tsx
@@ -0,0 +1,58 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import { ChunkStructureEnum } from '../../../types'
+import Selector from '../selector'
+
+const options = [
+  {
+    id: ChunkStructureEnum.general,
+    icon: <span>G</span>,
+    title: 'General',
+    description: 'General description',
+    effectColor: 'blue',
+  },
+  {
+    id: ChunkStructureEnum.parent_child,
+    icon: <span>P</span>,
+    title: 'Parent child',
+    description: 'Parent child description',
+    effectColor: 'purple',
+  },
+]
+
+describe('ChunkStructureSelector', () => {
+  it('should open the selector panel and close it after selecting an option', () => {
+    const onChange = vi.fn()
+
+    render(
+      <Selector
+        options={options}
+        value={ChunkStructureEnum.general}
+        onChange={onChange}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.panel.change' }))
+
+    expect(screen.getByText('workflow.nodes.knowledgeBase.changeChunkStructure')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('Parent child'))
+
+    expect(onChange).toHaveBeenCalledWith(ChunkStructureEnum.parent_child)
+    expect(screen.queryByText('workflow.nodes.knowledgeBase.changeChunkStructure')).not.toBeInTheDocument()
+  })
+
+  it('should not open the selector when readonly is enabled', () => {
+    render(
+      <Selector
+        options={options}
+        onChange={vi.fn()}
+        readonly
+        trigger={<button type="button">custom-trigger</button>}
+      />,
+    )
+
+    fireEvent.click(screen.getByRole('button', { name: 'custom-trigger' }))
+
+    expect(screen.queryByText('workflow.nodes.knowledgeBase.changeChunkStructure')).not.toBeInTheDocument()
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..20eee01c00
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/index.spec.tsx
@@ -0,0 +1,29 @@
+import { render, screen } from '@testing-library/react'
+import Instruction from '../index'
+
+const mockUseDocLink = vi.hoisted(() => vi.fn())
+
+vi.mock('@/context/i18n', () => ({
+  useDocLink: mockUseDocLink,
+}))
+
+describe('ChunkStructureInstruction', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseDocLink.mockReturnValue((path: string) => `https://docs.example.com${path}`)
+  })
+
+  // The instruction card should render the learning copy and link to the chunking guide.
+  describe('Rendering', () => {
+    it('should render the title, message, and learn-more link', () => {
+      render(<Instruction className="custom-class" />)
+
+      expect(screen.getByText('workflow.nodes.knowledgeBase.chunkStructureTip.title')).toBeInTheDocument()
+      expect(screen.getByText('workflow.nodes.knowledgeBase.chunkStructureTip.message')).toBeInTheDocument()
+      expect(screen.getByRole('link', { name: 'workflow.nodes.knowledgeBase.chunkStructureTip.learnMore' })).toHaveAttribute(
+        'href',
+        'https://docs.example.com/use-dify/knowledge/create-knowledge/chunking-and-cleaning-text',
+      )
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/line.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/line.spec.tsx
new file mode 100644
index 0000000000..9f6d397e36
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/chunk-structure/instruction/__tests__/line.spec.tsx
@@ -0,0 +1,27 @@
+import { render } from '@testing-library/react'
+import Line from '../line'
+
+describe('ChunkStructureInstructionLine', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The line should switch between vertical and horizontal SVG assets.
+  describe('Rendering', () => {
+    it('should render the vertical line by default', () => {
+      const { container } = render(<Line />)
+      const svg = container.querySelector('svg')
+
+      expect(svg).toHaveAttribute('width', '2')
+      expect(svg).toHaveAttribute('height', '132')
+    })
+
+    it('should render the horizontal line when requested', () => {
+      const { container } = render(<Line type="horizontal" />)
+      const svg = container.querySelector('svg')
+
+      expect(svg).toHaveAttribute('width', '240')
+      expect(svg).toHaveAttribute('height', '2')
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/hooks.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/hooks.spec.tsx
new file mode 100644
index 0000000000..ac52e807c9
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/hooks.spec.tsx
@@ -0,0 +1,38 @@
+import { renderHook } from '@testing-library/react'
+import {
+  HybridSearchModeEnum,
+  IndexMethodEnum,
+  RetrievalSearchMethodEnum,
+} from '../../../types'
+import { useRetrievalSetting } from '../hooks'
+
+describe('useRetrievalSetting', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The hook should switch between economical and qualified retrieval option sets.
+  describe('Options', () => {
+    it('should return semantic, full-text, and hybrid options for qualified indexing', () => {
+      const { result } = renderHook(() => useRetrievalSetting(IndexMethodEnum.QUALIFIED))
+
+      expect(result.current.options.map(option => option.id)).toEqual([
+        RetrievalSearchMethodEnum.semantic,
+        RetrievalSearchMethodEnum.fullText,
+        RetrievalSearchMethodEnum.hybrid,
+      ])
+      expect(result.current.hybridSearchModeOptions.map(option => option.id)).toEqual([
+        HybridSearchModeEnum.WeightedScore,
+        HybridSearchModeEnum.RerankingModel,
+      ])
+    })
+
+    it('should return only keyword search for economical indexing', () => {
+      const { result } = renderHook(() => useRetrievalSetting(IndexMethodEnum.ECONOMICAL))
+
+      expect(result.current.options.map(option => option.id)).toEqual([
+        RetrievalSearchMethodEnum.keywordSearch,
+      ])
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..b07f87ea03
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/index.spec.tsx
@@ -0,0 +1,60 @@
+import { render, screen } from '@testing-library/react'
+import { createDocLinkMock, resolveDocLink } from '@/app/components/workflow/__tests__/i18n'
+import { IndexMethodEnum } from '../../../types'
+import RetrievalSetting from '../index'
+
+const mockUseDocLink = createDocLinkMock()
+
+vi.mock('@/context/i18n', () => ({
+  useDocLink: () => mockUseDocLink,
+}))
+
+const baseProps = {
+  onRetrievalSearchMethodChange: vi.fn(),
+  onHybridSearchModeChange: vi.fn(),
+  onWeightedScoreChange: vi.fn(),
+  onTopKChange: vi.fn(),
+  onScoreThresholdChange: vi.fn(),
+  onScoreThresholdEnabledChange: vi.fn(),
+  onRerankingModelEnabledChange: vi.fn(),
+  onRerankingModelChange: vi.fn(),
+  topK: 3,
+  scoreThreshold: 0.5,
+  isScoreThresholdEnabled: false,
+}
+
+describe('RetrievalSetting', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should render the learn-more link and qualified retrieval method options', () => {
+    render(
+      <RetrievalSetting
+        {...baseProps}
+        indexMethod={IndexMethodEnum.QUALIFIED}
+      />,
+    )
+
+    expect(screen.getByRole('link', { name: 'datasetSettings.form.retrievalSetting.learnMore' })).toHaveAttribute(
+      'href',
+      resolveDocLink('/use-dify/knowledge/create-knowledge/setting-indexing-methods'),
+    )
+    expect(screen.getByText('dataset.retrieval.semantic_search.title')).toBeInTheDocument()
+    expect(screen.getByText('dataset.retrieval.full_text_search.title')).toBeInTheDocument()
+    expect(screen.getByText('dataset.retrieval.hybrid_search.title')).toBeInTheDocument()
+  })
+
+  it('should render only the economical retrieval method for economical indexing', () => {
+    render(
+      <RetrievalSetting
+        {...baseProps}
+        indexMethod={IndexMethodEnum.ECONOMICAL}
+      />,
+    )
+
+    expect(screen.getByText('dataset.retrieval.keyword_search.title')).toBeInTheDocument()
+    expect(screen.queryByText('dataset.retrieval.semantic_search.title')).not.toBeInTheDocument()
+    expect(screen.queryByText('dataset.retrieval.hybrid_search.title')).not.toBeInTheDocument()
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/reranking-model-selector.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/reranking-model-selector.spec.tsx
similarity index 72%
rename from web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/reranking-model-selector.spec.tsx
rename to web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/reranking-model-selector.spec.tsx
index 300de76c2e..7e3f7fdd67 100644
--- a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/reranking-model-selector.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/reranking-model-selector.spec.tsx
@@ -1,15 +1,14 @@
 import type {
   DefaultModel,
   Model,
-  ModelItem,
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import { fireEvent, render, screen } from '@testing-library/react'
+import { ModelTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import {
-  ConfigurationMethodEnum,
-  ModelStatusEnum,
-  ModelTypeEnum,
-} from '@/app/components/header/account-setting/model-provider-page/declarations'
-import RerankingModelSelector from './reranking-model-selector'
+  createModel,
+  createModelItem,
+} from '@/app/components/workflow/__tests__/model-provider-fixtures'
+import RerankingModelSelector from '../reranking-model-selector'
 
 type MockModelSelectorProps = {
   defaultModel?: DefaultModel
@@ -37,38 +36,19 @@ vi.mock('@/app/components/header/account-setting/model-provider-page/model-selec
   ),
 }))
 
-const createModelItem = (overrides: Partial<ModelItem> = {}): ModelItem => ({
-  model: 'rerank-v3',
-  label: { en_US: 'Rerank V3', zh_Hans: 'Rerank V3' },
-  model_type: ModelTypeEnum.rerank,
-  fetch_from: ConfigurationMethodEnum.predefinedModel,
-  status: ModelStatusEnum.active,
-  model_properties: {},
-  load_balancing_enabled: false,
-  ...overrides,
-})
-
-const createModel = (overrides: Partial<Model> = {}): Model => ({
-  provider: 'cohere',
-  icon_small: {
-    en_US: 'https://example.com/cohere.png',
-    zh_Hans: 'https://example.com/cohere.png',
-  },
-  icon_small_dark: {
-    en_US: 'https://example.com/cohere-dark.png',
-    zh_Hans: 'https://example.com/cohere-dark.png',
-  },
-  label: { en_US: 'Cohere', zh_Hans: 'Cohere' },
-  models: [createModelItem()],
-  status: ModelStatusEnum.active,
-  ...overrides,
-})
-
 describe('RerankingModelSelector', () => {
   beforeEach(() => {
     vi.clearAllMocks()
     mockUseModelListAndDefaultModel.mockReturnValue({
-      modelList: [createModel()],
+      modelList: [createModel({
+        provider: 'cohere',
+        label: { en_US: 'Cohere', zh_Hans: 'Cohere' },
+        models: [createModelItem({
+          model: 'rerank-v3',
+          model_type: ModelTypeEnum.rerank,
+          label: { en_US: 'Rerank V3', zh_Hans: 'Rerank V3' },
+        })],
+      })],
       defaultModel: undefined,
     })
   })
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/search-method-option.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/search-method-option.spec.tsx
new file mode 100644
index 0000000000..62aa379250
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/search-method-option.spec.tsx
@@ -0,0 +1,229 @@
+import type { ComponentType, SVGProps } from 'react'
+import {
+  fireEvent,
+  render,
+  screen,
+} from '@testing-library/react'
+import {
+  HybridSearchModeEnum,
+  RetrievalSearchMethodEnum,
+  WeightedScoreEnum,
+} from '../../../types'
+import SearchMethodOption from '../search-method-option'
+
+const mockUseModelListAndDefaultModel = vi.hoisted(() => vi.fn())
+const mockUseProviderContext = vi.hoisted(() => vi.fn())
+const mockUseCredentialPanelState = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/header/account-setting/model-provider-page/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/header/account-setting/model-provider-page/hooks')>()
+  return {
+    ...actual,
+    useModelListAndDefaultModel: (...args: Parameters<typeof actual.useModelListAndDefaultModel>) => mockUseModelListAndDefaultModel(...args),
+  }
+})
+
+vi.mock('@/context/provider-context', () => ({
+  useProviderContext: () => mockUseProviderContext(),
+}))
+
+vi.mock('@/app/components/header/account-setting/model-provider-page/provider-added-card/use-credential-panel-state', () => ({
+  useCredentialPanelState: (...args: unknown[]) => mockUseCredentialPanelState(...args),
+}))
+
+const SearchIcon: ComponentType<SVGProps<SVGSVGElement>> = props => (
+  <svg aria-hidden="true" {...props} />
+)
+
+const hybridSearchModeOptions = [
+  {
+    id: HybridSearchModeEnum.WeightedScore,
+    title: 'Weighted mode',
+    description: 'Use weighted score',
+  },
+  {
+    id: HybridSearchModeEnum.RerankingModel,
+    title: 'Rerank mode',
+    description: 'Use reranking model',
+  },
+]
+
+const weightedScore = {
+  weight_type: WeightedScoreEnum.Customized,
+  vector_setting: {
+    vector_weight: 0.8,
+    embedding_provider_name: 'openai',
+    embedding_model_name: 'text-embedding-3-large',
+  },
+  keyword_setting: {
+    keyword_weight: 0.2,
+  },
+}
+
+const createProps = () => ({
+  option: {
+    id: RetrievalSearchMethodEnum.semantic,
+    icon: SearchIcon,
+    title: 'Semantic title',
+    description: 'Semantic description',
+    effectColor: 'purple',
+  },
+  hybridSearchModeOptions,
+  searchMethod: RetrievalSearchMethodEnum.semantic,
+  onRetrievalSearchMethodChange: vi.fn(),
+  hybridSearchMode: HybridSearchModeEnum.WeightedScore,
+  onHybridSearchModeChange: vi.fn(),
+  weightedScore,
+  onWeightedScoreChange: vi.fn(),
+  rerankingModelEnabled: false,
+  onRerankingModelEnabledChange: vi.fn(),
+  rerankingModel: {
+    reranking_provider_name: '',
+    reranking_model_name: '',
+  },
+  onRerankingModelChange: vi.fn(),
+  topK: 3,
+  onTopKChange: vi.fn(),
+  scoreThreshold: 0.5,
+  onScoreThresholdChange: vi.fn(),
+  isScoreThresholdEnabled: true,
+  onScoreThresholdEnabledChange: vi.fn(),
+  showMultiModalTip: false,
+})
+
+describe('SearchMethodOption', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseModelListAndDefaultModel.mockReturnValue({
+      modelList: [],
+      defaultModel: undefined,
+    })
+    mockUseProviderContext.mockReturnValue({
+      modelProviders: [],
+    })
+    mockUseCredentialPanelState.mockReturnValue({
+      variant: 'api-active',
+      priority: 'apiKeyOnly',
+      supportsCredits: false,
+      showPrioritySwitcher: false,
+      hasCredentials: true,
+      isCreditsExhausted: false,
+      credentialName: undefined,
+      credits: 0,
+    })
+  })
+
+  it('should render semantic search controls and notify retrieval and reranking changes', () => {
+    const props = createProps()
+
+    render(<SearchMethodOption {...props} />)
+
+    expect(screen.getByText('Semantic title')).toBeInTheDocument()
+    expect(screen.getByText('common.modelProvider.rerankModel.key')).toBeInTheDocument()
+    expect(screen.getByText('plugin.detailPanel.configureModel')).toBeInTheDocument()
+    expect(screen.getAllByRole('switch')).toHaveLength(2)
+
+    fireEvent.click(screen.getByText('Semantic title'))
+    fireEvent.click(screen.getAllByRole('switch')[0])
+
+    expect(props.onRetrievalSearchMethodChange).toHaveBeenCalledWith(RetrievalSearchMethodEnum.semantic)
+    expect(props.onRerankingModelEnabledChange).toHaveBeenCalledWith(true)
+  })
+
+  it('should render the reranking switch for full-text search as well', () => {
+    const props = createProps()
+
+    render(
+      <SearchMethodOption
+        {...props}
+        option={{
+          ...props.option,
+          id: RetrievalSearchMethodEnum.fullText,
+          title: 'Full-text title',
+        }}
+        searchMethod={RetrievalSearchMethodEnum.fullText}
+      />,
+    )
+
+    expect(screen.getByText('Full-text title')).toBeInTheDocument()
+    expect(screen.getByText('common.modelProvider.rerankModel.key')).toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('Full-text title'))
+
+    expect(props.onRetrievalSearchMethodChange).toHaveBeenCalledWith(RetrievalSearchMethodEnum.fullText)
+  })
+
+  it('should render hybrid weighted-score controls without reranking model selector', () => {
+    const props = createProps()
+
+    render(
+      <SearchMethodOption
+        {...props}
+        option={{
+          ...props.option,
+          id: RetrievalSearchMethodEnum.hybrid,
+          title: 'Hybrid title',
+        }}
+        searchMethod={RetrievalSearchMethodEnum.hybrid}
+        hybridSearchMode={HybridSearchModeEnum.WeightedScore}
+        showMultiModalTip
+      />,
+    )
+
+    expect(screen.getByText('Weighted mode')).toBeInTheDocument()
+    expect(screen.getByText('Rerank mode')).toBeInTheDocument()
+    expect(screen.getByText('dataset.weightedScore.semantic')).toBeInTheDocument()
+    expect(screen.getByText('dataset.weightedScore.keyword')).toBeInTheDocument()
+    expect(screen.queryByText('common.modelProvider.rerankModel.key')).not.toBeInTheDocument()
+    expect(screen.queryByText('datasetSettings.form.retrievalSetting.multiModalTip')).not.toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('Rerank mode'))
+
+    expect(props.onHybridSearchModeChange).toHaveBeenCalledWith(HybridSearchModeEnum.RerankingModel)
+  })
+
+  it('should render the hybrid reranking selector when reranking mode is selected', () => {
+    const props = createProps()
+
+    render(
+      <SearchMethodOption
+        {...props}
+        option={{
+          ...props.option,
+          id: RetrievalSearchMethodEnum.hybrid,
+          title: 'Hybrid title',
+        }}
+        searchMethod={RetrievalSearchMethodEnum.hybrid}
+        hybridSearchMode={HybridSearchModeEnum.RerankingModel}
+        showMultiModalTip
+      />,
+    )
+
+    expect(screen.getByText('plugin.detailPanel.configureModel')).toBeInTheDocument()
+    expect(screen.queryByText('common.modelProvider.rerankModel.key')).not.toBeInTheDocument()
+    expect(screen.queryByText('dataset.weightedScore.semantic')).not.toBeInTheDocument()
+    expect(screen.getByText('datasetSettings.form.retrievalSetting.multiModalTip')).toBeInTheDocument()
+  })
+
+  it('should hide the score-threshold control for keyword search', () => {
+    const props = createProps()
+
+    render(
+      <SearchMethodOption
+        {...props}
+        option={{
+          ...props.option,
+          id: RetrievalSearchMethodEnum.keywordSearch,
+          title: 'Keyword title',
+        }}
+        searchMethod={RetrievalSearchMethodEnum.keywordSearch}
+      />,
+    )
+
+    fireEvent.change(screen.getByRole('textbox'), { target: { value: '9' } })
+
+    expect(screen.getAllByRole('textbox')).toHaveLength(1)
+    expect(screen.queryAllByRole('switch')).toHaveLength(0)
+    expect(props.onTopKChange).toHaveBeenCalledWith(9)
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/top-k-and-score-threshold.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/top-k-and-score-threshold.spec.tsx
index 762c4c4c05..6de6365c89 100644
--- a/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/top-k-and-score-threshold.spec.tsx
+++ b/web/app/components/workflow/nodes/knowledge-base/components/retrieval-setting/__tests__/top-k-and-score-threshold.spec.tsx
@@ -32,4 +32,38 @@ describe('TopKAndScoreThreshold', () => {
 
     expect(defaultProps.onScoreThresholdChange).toHaveBeenCalledWith(0.46)
   })
+
+  it('should hide the score-threshold column when requested', () => {
+    render(<TopKAndScoreThreshold {...defaultProps} hiddenScoreThreshold />)
+
+    expect(screen.getAllByRole('textbox')).toHaveLength(1)
+    expect(screen.queryByRole('switch')).not.toBeInTheDocument()
+  })
+
+  it('should fall back to zero when the number fields are cleared', () => {
+    render(
+      <TopKAndScoreThreshold
+        {...defaultProps}
+        scoreThreshold={undefined}
+        isScoreThresholdEnabled
+      />,
+    )
+
+    const [topKInput, scoreThresholdInput] = screen.getAllByRole('textbox')
+    fireEvent.change(topKInput, { target: { value: '' } })
+
+    expect(defaultProps.onTopKChange).toHaveBeenCalledWith(0)
+    expect(scoreThresholdInput).toHaveValue('')
+  })
+
+  it('should default the score-threshold switch to off when the flag is missing', () => {
+    render(
+      <TopKAndScoreThreshold
+        {...defaultProps}
+        isScoreThresholdEnabled={undefined}
+      />,
+    )
+
+    expect(screen.getByRole('switch')).toHaveAttribute('aria-checked', 'false')
+  })
 })
diff --git a/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-config.spec.tsx b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-config.spec.tsx
new file mode 100644
index 0000000000..a5fbe34ec2
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-config.spec.tsx
@@ -0,0 +1,513 @@
+import type { KnowledgeBaseNodeType } from '../../types'
+import { act } from '@testing-library/react'
+import {
+  createNode,
+  createNodeDataFactory,
+} from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowHook } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { RerankingModeEnum } from '@/models/datasets'
+import {
+  ChunkStructureEnum,
+  HybridSearchModeEnum,
+  IndexMethodEnum,
+  RetrievalSearchMethodEnum,
+  WeightedScoreEnum,
+} from '../../types'
+import { useConfig } from '../use-config'
+
+const mockHandleNodeDataUpdateWithSyncDraft = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/workflow/hooks', () => ({
+  useNodeDataUpdate: () => ({
+    handleNodeDataUpdateWithSyncDraft: mockHandleNodeDataUpdateWithSyncDraft,
+  }),
+}))
+
+const createNodeData = createNodeDataFactory<KnowledgeBaseNodeType>({
+  title: 'Knowledge Base',
+  desc: '',
+  type: 'knowledge-base' as KnowledgeBaseNodeType['type'],
+  index_chunk_variable_selector: ['chunks', 'results'],
+  chunk_structure: ChunkStructureEnum.general,
+  indexing_technique: IndexMethodEnum.QUALIFIED,
+  embedding_model: 'text-embedding-3-large',
+  embedding_model_provider: 'openai',
+  keyword_number: 3,
+  retrieval_model: {
+    search_method: RetrievalSearchMethodEnum.semantic,
+    reranking_enable: false,
+    reranking_mode: RerankingModeEnum.RerankingModel,
+    reranking_model: {
+      reranking_provider_name: '',
+      reranking_model_name: '',
+    },
+    top_k: 3,
+    score_threshold_enabled: false,
+    score_threshold: 0.5,
+  },
+  summary_index_setting: {
+    enable: false,
+    summary_prompt: 'existing prompt',
+  },
+})
+
+const renderConfigHook = (nodeData: KnowledgeBaseNodeType) =>
+  renderWorkflowFlowHook(() => useConfig('knowledge-base-node'), {
+    nodes: [
+      createNode({
+        id: 'knowledge-base-node',
+        data: nodeData,
+      }),
+    ],
+    edges: [],
+  })
+
+describe('useConfig', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should preserve the current chunk variable selector when the chunk structure does not change', () => {
+    const { result } = renderConfigHook(createNodeData())
+
+    act(() => {
+      result.current.handleChunkStructureChange(ChunkStructureEnum.general)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        chunk_structure: ChunkStructureEnum.general,
+        index_chunk_variable_selector: ['chunks', 'results'],
+      }),
+    })
+  })
+
+  it('should reset chunk variables and keep a high-quality search method when switching chunk structures', () => {
+    const { result } = renderConfigHook(createNodeData({
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.keywordSearch,
+        reranking_enable: false,
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleChunkStructureChange(ChunkStructureEnum.parent_child)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        chunk_structure: ChunkStructureEnum.parent_child,
+        indexing_technique: IndexMethodEnum.QUALIFIED,
+        index_chunk_variable_selector: [],
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.keywordSearch,
+        }),
+      }),
+    })
+  })
+
+  it('should preserve semantic search when switching to a structured chunk mode from a high-quality search method', () => {
+    const { result } = renderConfigHook(createNodeData({
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.semantic,
+        reranking_enable: false,
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleChunkStructureChange(ChunkStructureEnum.question_answer)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        chunk_structure: ChunkStructureEnum.question_answer,
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.semantic,
+        }),
+      }),
+    })
+  })
+
+  it('should update the index method and keyword number', () => {
+    const { result } = renderConfigHook(createNodeData())
+
+    act(() => {
+      result.current.handleIndexMethodChange(IndexMethodEnum.ECONOMICAL)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        indexing_technique: IndexMethodEnum.ECONOMICAL,
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.keywordSearch,
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleIndexMethodChange(IndexMethodEnum.QUALIFIED)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        indexing_technique: IndexMethodEnum.QUALIFIED,
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.semantic,
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleKeywordNumberChange(9)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: {
+        keyword_number: 9,
+      },
+    })
+  })
+
+  it('should create default weights when embedding weights are missing and default reranking mode when switching away from hybrid', () => {
+    const { result } = renderConfigHook(createNodeData({
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.semantic,
+        reranking_enable: false,
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleEmbeddingModelChange({
+        embeddingModel: 'text-embedding-3-small',
+        embeddingModelProvider: 'openai',
+      })
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          weights: expect.objectContaining({
+            vector_setting: expect.objectContaining({
+              embedding_provider_name: 'openai',
+              embedding_model_name: 'text-embedding-3-small',
+            }),
+            keyword_setting: expect.objectContaining({
+              keyword_weight: 0.3,
+            }),
+          }),
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleRetrievalSearchMethodChange(RetrievalSearchMethodEnum.fullText)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.fullText,
+          reranking_mode: RerankingModeEnum.RerankingModel,
+        }),
+      }),
+    })
+  })
+
+  it('should update embedding model weights and retrieval search method defaults', () => {
+    const { result } = renderConfigHook(createNodeData({
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.semantic,
+        reranking_enable: false,
+        reranking_mode: RerankingModeEnum.RerankingModel,
+        reranking_model: {
+          reranking_provider_name: '',
+          reranking_model_name: '',
+        },
+        weights: {
+          weight_type: WeightedScoreEnum.Customized,
+          vector_setting: {
+            vector_weight: 0.8,
+            embedding_provider_name: 'openai',
+            embedding_model_name: 'text-embedding-3-large',
+          },
+          keyword_setting: {
+            keyword_weight: 0.2,
+          },
+        },
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleEmbeddingModelChange({
+        embeddingModel: 'text-embedding-3-small',
+        embeddingModelProvider: 'openai',
+      })
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        embedding_model: 'text-embedding-3-small',
+        embedding_model_provider: 'openai',
+        retrieval_model: expect.objectContaining({
+          weights: expect.objectContaining({
+            vector_setting: expect.objectContaining({
+              embedding_provider_name: 'openai',
+              embedding_model_name: 'text-embedding-3-small',
+            }),
+          }),
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleRetrievalSearchMethodChange(RetrievalSearchMethodEnum.hybrid)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          search_method: RetrievalSearchMethodEnum.hybrid,
+          reranking_mode: RerankingModeEnum.RerankingModel,
+          reranking_enable: true,
+        }),
+      }),
+    })
+  })
+
+  it('should seed hybrid weights and propagate retrieval tuning updates', () => {
+    const { result } = renderConfigHook(createNodeData({
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.hybrid,
+        reranking_enable: false,
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleHybridSearchModeChange(HybridSearchModeEnum.WeightedScore)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          reranking_mode: HybridSearchModeEnum.WeightedScore,
+          reranking_enable: false,
+          weights: expect.objectContaining({
+            vector_setting: expect.objectContaining({
+              embedding_provider_name: 'openai',
+              embedding_model_name: 'text-embedding-3-large',
+            }),
+          }),
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleRerankingModelEnabledChange(true)
+      result.current.handleWeighedScoreChange({ value: [0.6, 0.4] })
+      result.current.handleRerankingModelChange({
+        reranking_provider_name: 'cohere',
+        reranking_model_name: 'rerank-v3',
+      })
+      result.current.handleTopKChange(8)
+      result.current.handleScoreThresholdChange(0.75)
+      result.current.handleScoreThresholdEnabledChange(true)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(2, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          reranking_enable: true,
+        }),
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(3, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          weights: expect.objectContaining({
+            weight_type: WeightedScoreEnum.Customized,
+            vector_setting: expect.objectContaining({
+              vector_weight: 0.6,
+            }),
+            keyword_setting: expect.objectContaining({
+              keyword_weight: 0.4,
+            }),
+          }),
+        }),
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(4, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          reranking_model: {
+            reranking_provider_name: 'cohere',
+            reranking_model_name: 'rerank-v3',
+          },
+        }),
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(5, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          top_k: 8,
+        }),
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(6, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          score_threshold: 0.75,
+        }),
+      }),
+    })
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenNthCalledWith(7, {
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          score_threshold_enabled: true,
+        }),
+      }),
+    })
+  })
+
+  it('should reuse existing hybrid weights and allow empty embedding defaults', () => {
+    const { result } = renderConfigHook(createNodeData({
+      embedding_model: undefined,
+      embedding_model_provider: undefined,
+      retrieval_model: {
+        search_method: RetrievalSearchMethodEnum.hybrid,
+        reranking_enable: false,
+        reranking_mode: RerankingModeEnum.WeightedScore,
+        weights: {
+          weight_type: WeightedScoreEnum.Customized,
+          vector_setting: {
+            vector_weight: 0.9,
+            embedding_provider_name: 'existing-provider',
+            embedding_model_name: 'existing-model',
+          },
+          keyword_setting: {
+            keyword_weight: 0.1,
+          },
+        },
+        top_k: 3,
+        score_threshold_enabled: false,
+        score_threshold: 0.5,
+      },
+    }))
+
+    act(() => {
+      result.current.handleHybridSearchModeChange(HybridSearchModeEnum.RerankingModel)
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        retrieval_model: expect.objectContaining({
+          reranking_mode: HybridSearchModeEnum.RerankingModel,
+          reranking_enable: true,
+          weights: expect.objectContaining({
+            vector_setting: expect.objectContaining({
+              embedding_provider_name: 'existing-provider',
+              embedding_model_name: 'existing-model',
+            }),
+          }),
+        }),
+      }),
+    })
+
+    act(() => {
+      result.current.handleEmbeddingModelChange({
+        embeddingModel: 'fallback-model',
+        embeddingModelProvider: '',
+      })
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: expect.objectContaining({
+        embedding_model: 'fallback-model',
+        embedding_model_provider: '',
+        retrieval_model: expect.objectContaining({
+          weights: expect.objectContaining({
+            vector_setting: expect.objectContaining({
+              embedding_provider_name: '',
+              embedding_model_name: 'fallback-model',
+            }),
+          }),
+        }),
+      }),
+    })
+  })
+
+  it('should normalize input variables and merge summary index settings', () => {
+    const { result } = renderConfigHook(createNodeData())
+
+    act(() => {
+      result.current.handleInputVariableChange('chunks')
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: {
+        index_chunk_variable_selector: [],
+      },
+    })
+
+    act(() => {
+      result.current.handleInputVariableChange(['payload', 'chunks'])
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: {
+        index_chunk_variable_selector: ['payload', 'chunks'],
+      },
+    })
+
+    act(() => {
+      result.current.handleSummaryIndexSettingChange({
+        enable: true,
+      })
+    })
+
+    expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenLastCalledWith({
+      id: 'knowledge-base-node',
+      data: {
+        summary_index_setting: {
+          enable: true,
+          summary_prompt: 'existing prompt',
+        },
+      },
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-embedding-model-status.spec.ts b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-embedding-model-status.spec.ts
new file mode 100644
index 0000000000..de44cfa112
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-embedding-model-status.spec.ts
@@ -0,0 +1,81 @@
+import { renderHook } from '@testing-library/react'
+import { ModelTypeEnum } from '@/app/components/header/account-setting/model-provider-page/declarations'
+import {
+  createCredentialState,
+  createModel,
+  createModelItem,
+  createProviderMeta,
+} from '@/app/components/workflow/__tests__/model-provider-fixtures'
+import { useEmbeddingModelStatus } from '../use-embedding-model-status'
+
+const mockUseCredentialPanelState = vi.hoisted(() => vi.fn())
+const mockUseProviderContext = vi.hoisted(() => vi.fn())
+
+vi.mock('@/app/components/header/account-setting/model-provider-page/provider-added-card/use-credential-panel-state', () => ({
+  useCredentialPanelState: mockUseCredentialPanelState,
+}))
+
+vi.mock('@/context/provider-context', () => ({
+  useProviderContext: mockUseProviderContext,
+}))
+
+describe('useEmbeddingModelStatus', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseProviderContext.mockReturnValue({
+      modelProviders: [createProviderMeta({
+        supported_model_types: [ModelTypeEnum.textEmbedding],
+      })],
+    })
+    mockUseCredentialPanelState.mockReturnValue(createCredentialState())
+  })
+
+  // The hook should resolve provider and model metadata before deriving the final status.
+  describe('Resolution', () => {
+    it('should return the matched provider, current model, and active status', () => {
+      const embeddingModelList = [createModel()]
+
+      const { result } = renderHook(() => useEmbeddingModelStatus({
+        embeddingModel: 'text-embedding-3-large',
+        embeddingModelProvider: 'openai',
+        embeddingModelList,
+      }))
+
+      expect(result.current.providerMeta?.provider).toBe('openai')
+      expect(result.current.modelProvider?.provider).toBe('openai')
+      expect(result.current.currentModel?.model).toBe('text-embedding-3-large')
+      expect(result.current.status).toBe('active')
+    })
+
+    it('should return incompatible when the provider exists but the selected model is missing', () => {
+      const embeddingModelList = [
+        createModel({
+          models: [createModelItem({ model: 'another-model' })],
+        }),
+      ]
+
+      const { result } = renderHook(() => useEmbeddingModelStatus({
+        embeddingModel: 'text-embedding-3-large',
+        embeddingModelProvider: 'openai',
+        embeddingModelList,
+      }))
+
+      expect(result.current.providerMeta?.provider).toBe('openai')
+      expect(result.current.currentModel).toBeUndefined()
+      expect(result.current.status).toBe('incompatible')
+    })
+
+    it('should return empty when no embedding model is configured', () => {
+      const { result } = renderHook(() => useEmbeddingModelStatus({
+        embeddingModel: undefined,
+        embeddingModelProvider: undefined,
+        embeddingModelList: [],
+      }))
+
+      expect(result.current.providerMeta).toBeUndefined()
+      expect(result.current.modelProvider).toBeUndefined()
+      expect(result.current.currentModel).toBeUndefined()
+      expect(result.current.status).toBe('empty')
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-settings-display.spec.ts b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-settings-display.spec.ts
new file mode 100644
index 0000000000..e0a1791768
--- /dev/null
+++ b/web/app/components/workflow/nodes/knowledge-base/hooks/__tests__/use-settings-display.spec.ts
@@ -0,0 +1,26 @@
+import { renderHook } from '@testing-library/react'
+import {
+  IndexMethodEnum,
+  RetrievalSearchMethodEnum,
+} from '../../types'
+import { useSettingsDisplay } from '../use-settings-display'
+
+describe('useSettingsDisplay', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The display map should expose translated labels for all index and retrieval settings.
+  describe('Translations', () => {
+    it('should return translated labels for each supported setting key', () => {
+      const { result } = renderHook(() => useSettingsDisplay())
+
+      expect(result.current[IndexMethodEnum.QUALIFIED]).toBe('datasetCreation.stepTwo.qualified')
+      expect(result.current[IndexMethodEnum.ECONOMICAL]).toBe('datasetSettings.form.indexMethodEconomy')
+      expect(result.current[RetrievalSearchMethodEnum.semantic]).toBe('dataset.retrieval.semantic_search.title')
+      expect(result.current[RetrievalSearchMethodEnum.fullText]).toBe('dataset.retrieval.full_text_search.title')
+      expect(result.current[RetrievalSearchMethodEnum.hybrid]).toBe('dataset.retrieval.hybrid_search.title')
+      expect(result.current[RetrievalSearchMethodEnum.keywordSearch]).toBe('dataset.retrieval.keyword_search.title')
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/llm/default.spec.ts b/web/app/components/workflow/nodes/llm/__tests__/default.spec.ts
similarity index 89%
rename from web/app/components/workflow/nodes/llm/default.spec.ts
rename to web/app/components/workflow/nodes/llm/__tests__/default.spec.ts
index 938b20be10..7dd221f46c 100644
--- a/web/app/components/workflow/nodes/llm/default.spec.ts
+++ b/web/app/components/workflow/nodes/llm/__tests__/default.spec.ts
@@ -1,7 +1,7 @@
-import type { LLMNodeType } from './types'
+import type { LLMNodeType } from '../types'
 import { AppModeEnum } from '@/types/app'
-import { EditionType, PromptRole } from '../../types'
-import nodeDefault from './default'
+import { EditionType, PromptRole } from '../../../types'
+import nodeDefault from '../default'
 
 const t = (key: string) => key
 
diff --git a/web/app/components/workflow/nodes/llm/panel.spec.tsx b/web/app/components/workflow/nodes/llm/__tests__/panel.spec.tsx
similarity index 93%
rename from web/app/components/workflow/nodes/llm/panel.spec.tsx
rename to web/app/components/workflow/nodes/llm/__tests__/panel.spec.tsx
index 109174e7d2..ee4891cfa3 100644
--- a/web/app/components/workflow/nodes/llm/panel.spec.tsx
+++ b/web/app/components/workflow/nodes/llm/__tests__/panel.spec.tsx
@@ -1,4 +1,4 @@
-import type { LLMNodeType } from './types'
+import type { LLMNodeType } from '../types'
 import type { ModelProvider } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import type { ProviderContextState } from '@/context/provider-context'
 import type { PanelProps } from '@/types/workflow'
@@ -14,8 +14,8 @@ import {
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
 import { useProviderContextSelector } from '@/context/provider-context'
 import { AppModeEnum } from '@/types/app'
-import { BlockEnum } from '../../types'
-import Panel from './panel'
+import { BlockEnum } from '../../../types'
+import Panel from '../panel'
 
 const mockUseConfig = vi.fn()
 
@@ -23,7 +23,7 @@ vi.mock('@/context/provider-context', () => ({
   useProviderContextSelector: vi.fn(),
 }))
 
-vi.mock('./use-config', () => ({
+vi.mock('../use-config', () => ({
   default: (...args: unknown[]) => mockUseConfig(...args),
 }))
 
@@ -31,19 +31,19 @@ vi.mock('@/app/components/header/account-setting/model-provider-page/model-param
   default: () => <div data-testid="model-parameter-modal" />,
 }))
 
-vi.mock('./components/config-prompt', () => ({
+vi.mock('../components/config-prompt', () => ({
   default: () => <div data-testid="config-prompt" />,
 }))
 
-vi.mock('../_base/components/config-vision', () => ({
+vi.mock('../../_base/components/config-vision', () => ({
   default: () => null,
 }))
 
-vi.mock('../_base/components/memory-config', () => ({
+vi.mock('../../_base/components/memory-config', () => ({
   default: () => null,
 }))
 
-vi.mock('../_base/components/variable/var-reference-picker', () => ({
+vi.mock('../../_base/components/variable/var-reference-picker', () => ({
   default: () => null,
 }))
 
@@ -55,11 +55,11 @@ vi.mock('@/app/components/workflow/nodes/_base/components/variable/var-list', ()
   default: () => null,
 }))
 
-vi.mock('./components/reasoning-format-config', () => ({
+vi.mock('../components/reasoning-format-config', () => ({
   default: () => null,
 }))
 
-vi.mock('./components/structure-output', () => ({
+vi.mock('../components/structure-output', () => ({
   default: () => null,
 }))
 
diff --git a/web/app/components/workflow/nodes/llm/utils.spec.ts b/web/app/components/workflow/nodes/llm/__tests__/utils.spec.ts
similarity index 98%
rename from web/app/components/workflow/nodes/llm/utils.spec.ts
rename to web/app/components/workflow/nodes/llm/__tests__/utils.spec.ts
index 4c916651f6..bc4ca0a2a4 100644
--- a/web/app/components/workflow/nodes/llm/utils.spec.ts
+++ b/web/app/components/workflow/nodes/llm/__tests__/utils.spec.ts
@@ -1,4 +1,4 @@
-import { getLLMModelIssue, isLLMModelProviderInstalled, LLMModelIssueCode } from './utils'
+import { getLLMModelIssue, isLLMModelProviderInstalled, LLMModelIssueCode } from '../utils'
 
 describe('llm utils', () => {
   describe('getLLMModelIssue', () => {
diff --git a/web/app/components/workflow/nodes/loop-start/__tests__/index.spec.tsx b/web/app/components/workflow/nodes/loop-start/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..443d34e8d5
--- /dev/null
+++ b/web/app/components/workflow/nodes/loop-start/__tests__/index.spec.tsx
@@ -0,0 +1,94 @@
+import type { NodeProps } from 'reactflow'
+import type { CommonNodeType } from '@/app/components/workflow/types'
+import { render, waitFor } from '@testing-library/react'
+import { createNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import {
+  useAvailableBlocks,
+  useIsChatMode,
+  useNodesInteractions,
+  useNodesReadOnly,
+} from '@/app/components/workflow/hooks'
+import { BlockEnum } from '@/app/components/workflow/types'
+import LoopStartNode, { LoopStartNodeDumb } from '../index'
+
+vi.mock('@/app/components/workflow/hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('@/app/components/workflow/hooks')>()
+  return {
+    ...actual,
+    useAvailableBlocks: vi.fn(),
+    useNodesInteractions: vi.fn(),
+    useNodesReadOnly: vi.fn(),
+    useIsChatMode: vi.fn(),
+  }
+})
+
+const mockUseAvailableBlocks = vi.mocked(useAvailableBlocks)
+const mockUseNodesInteractions = vi.mocked(useNodesInteractions)
+const mockUseNodesReadOnly = vi.mocked(useNodesReadOnly)
+const mockUseIsChatMode = vi.mocked(useIsChatMode)
+
+const createAvailableBlocksResult = (): ReturnType<typeof useAvailableBlocks> => ({
+  getAvailableBlocks: vi.fn(() => ({
+    availablePrevBlocks: [],
+    availableNextBlocks: [],
+  })),
+  availablePrevBlocks: [],
+  availableNextBlocks: [],
+})
+
+const FlowNode = (props: NodeProps<CommonNodeType>) => (
+  <LoopStartNode {...props} />
+)
+
+const renderFlowNode = () =>
+  renderWorkflowFlowComponent(<div />, {
+    nodes: [createNode({
+      id: 'loop-start-node',
+      type: 'loopStartNode',
+      data: {
+        title: 'Loop Start',
+        desc: '',
+        type: BlockEnum.LoopStart,
+      },
+    })],
+    edges: [],
+    reactFlowProps: {
+      nodeTypes: { loopStartNode: FlowNode },
+    },
+    canvasStyle: {
+      width: 400,
+      height: 300,
+    },
+  })
+
+describe('LoopStartNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseAvailableBlocks.mockReturnValue(createAvailableBlocksResult())
+    mockUseNodesInteractions.mockReturnValue({
+      handleNodeAdd: vi.fn(),
+    } as unknown as ReturnType<typeof useNodesInteractions>)
+    mockUseNodesReadOnly.mockReturnValue({
+      getNodesReadOnly: () => false,
+    } as unknown as ReturnType<typeof useNodesReadOnly>)
+    mockUseIsChatMode.mockReturnValue(false)
+  })
+
+  // The loop start marker should match iteration start behavior in both real and dumb render paths.
+  describe('Rendering', () => {
+    it('should render the source handle in the ReactFlow context', async () => {
+      const { container } = renderFlowNode()
+
+      await waitFor(() => {
+        expect(container.querySelector('[data-handleid="source"]')).toBeInTheDocument()
+      })
+    })
+
+    it('should render the dumb variant without any source handle', () => {
+      const { container } = render(<LoopStartNodeDumb />)
+
+      expect(container.querySelector('[data-handleid="source"]')).not.toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/start/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/start/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..a6c74eb3f7
--- /dev/null
+++ b/web/app/components/workflow/nodes/start/__tests__/node.spec.tsx
@@ -0,0 +1,58 @@
+import type { StartNodeType } from '../types'
+import { screen } from '@testing-library/react'
+import { renderNodeComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum, InputVarType } from '@/app/components/workflow/types'
+import Node from '../node'
+
+const createNodeData = (overrides: Partial<StartNodeType> = {}): StartNodeType => ({
+  title: 'Start',
+  desc: '',
+  type: BlockEnum.Start,
+  variables: [{
+    label: 'Question',
+    variable: 'query',
+    type: InputVarType.textInput,
+    required: true,
+  }],
+  ...overrides,
+})
+
+describe('StartNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Start variables should render required metadata and gracefully disappear when empty.
+  describe('Rendering', () => {
+    it('should render configured input variables and required markers', () => {
+      renderNodeComponent(Node, createNodeData({
+        variables: [
+          {
+            label: 'Question',
+            variable: 'query',
+            type: InputVarType.textInput,
+            required: true,
+          },
+          {
+            label: 'Count',
+            variable: 'count',
+            type: InputVarType.number,
+            required: false,
+          },
+        ],
+      }))
+
+      expect(screen.getByText('query')).toBeInTheDocument()
+      expect(screen.getByText('count')).toBeInTheDocument()
+      expect(screen.getByText('workflow.nodes.start.required')).toBeInTheDocument()
+    })
+
+    it('should render nothing when there are no start variables', () => {
+      const { container } = renderNodeComponent(Node, createNodeData({
+        variables: [],
+      }))
+
+      expect(container).toBeEmptyDOMElement()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/trigger-schedule/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/trigger-schedule/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..111f543707
--- /dev/null
+++ b/web/app/components/workflow/nodes/trigger-schedule/__tests__/node.spec.tsx
@@ -0,0 +1,46 @@
+import type { ScheduleTriggerNodeType } from '../types'
+import { screen } from '@testing-library/react'
+import { renderNodeComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum } from '@/app/components/workflow/types'
+import Node from '../node'
+import { getNextExecutionTime } from '../utils/execution-time-calculator'
+
+const createNodeData = (overrides: Partial<ScheduleTriggerNodeType> = {}): ScheduleTriggerNodeType => ({
+  title: 'Schedule Trigger',
+  desc: '',
+  type: BlockEnum.TriggerSchedule,
+  mode: 'visual',
+  frequency: 'daily',
+  timezone: 'UTC',
+  visual_config: {
+    time: '11:30 AM',
+  },
+  ...overrides,
+})
+
+describe('TriggerScheduleNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The node should surface the computed next execution time for both valid and invalid schedules.
+  describe('Rendering', () => {
+    it('should render the next execution label and computed execution time', () => {
+      const data = createNodeData()
+
+      renderNodeComponent(Node, data)
+
+      expect(screen.getByText('workflow.nodes.triggerSchedule.nextExecutionTime')).toBeInTheDocument()
+      expect(screen.getByText(getNextExecutionTime(data))).toBeInTheDocument()
+    })
+
+    it('should render the placeholder when cron mode has an invalid expression', () => {
+      renderNodeComponent(Node, createNodeData({
+        mode: 'cron',
+        cron_expression: 'invalid cron',
+      }))
+
+      expect(screen.getByText('--')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/nodes/trigger-schedule/utils/integration.spec.ts b/web/app/components/workflow/nodes/trigger-schedule/utils/__tests__/integration.spec.ts
similarity index 97%
rename from web/app/components/workflow/nodes/trigger-schedule/utils/integration.spec.ts
rename to web/app/components/workflow/nodes/trigger-schedule/utils/__tests__/integration.spec.ts
index cfc502d141..9eacc9128d 100644
--- a/web/app/components/workflow/nodes/trigger-schedule/utils/integration.spec.ts
+++ b/web/app/components/workflow/nodes/trigger-schedule/utils/__tests__/integration.spec.ts
@@ -1,7 +1,7 @@
-import type { ScheduleTriggerNodeType } from '../types'
-import { BlockEnum } from '../../../types'
-import { isValidCronExpression, parseCronExpression } from './cron-parser'
-import { getNextExecutionTime, getNextExecutionTimes } from './execution-time-calculator'
+import type { ScheduleTriggerNodeType } from '../../types'
+import { BlockEnum } from '../../../../types'
+import { isValidCronExpression, parseCronExpression } from '../cron-parser'
+import { getNextExecutionTime, getNextExecutionTimes } from '../execution-time-calculator'
 
 // Comprehensive integration tests for cron-parser and execution-time-calculator compatibility
 describe('cron-parser + execution-time-calculator integration', () => {
diff --git a/web/app/components/workflow/nodes/trigger-webhook/__tests__/node.spec.tsx b/web/app/components/workflow/nodes/trigger-webhook/__tests__/node.spec.tsx
new file mode 100644
index 0000000000..1585528ff0
--- /dev/null
+++ b/web/app/components/workflow/nodes/trigger-webhook/__tests__/node.spec.tsx
@@ -0,0 +1,47 @@
+import type { WebhookTriggerNodeType } from '../types'
+import { screen } from '@testing-library/react'
+import { renderNodeComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
+import { BlockEnum } from '@/app/components/workflow/types'
+import Node from '../node'
+
+const createNodeData = (overrides: Partial<WebhookTriggerNodeType> = {}): WebhookTriggerNodeType => ({
+  title: 'Webhook Trigger',
+  desc: '',
+  type: BlockEnum.TriggerWebhook,
+  method: 'POST',
+  content_type: 'application/json',
+  headers: [],
+  params: [],
+  body: [],
+  async_mode: false,
+  status_code: 200,
+  response_body: '',
+  variables: [],
+  ...overrides,
+})
+
+describe('TriggerWebhookNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The node should expose the webhook URL and keep a clear fallback for empty data.
+  describe('Rendering', () => {
+    it('should render the webhook url when it exists', () => {
+      renderNodeComponent(Node, createNodeData({
+        webhook_url: 'https://example.com/webhook',
+      }))
+
+      expect(screen.getByText('URL')).toBeInTheDocument()
+      expect(screen.getByText('https://example.com/webhook')).toBeInTheDocument()
+    })
+
+    it('should render the placeholder when the webhook url is empty', () => {
+      renderNodeComponent(Node, createNodeData({
+        webhook_url: '',
+      }))
+
+      expect(screen.getByText('--')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/__tests__/index.spec.tsx b/web/app/components/workflow/note-node/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..9814bb63f4
--- /dev/null
+++ b/web/app/components/workflow/note-node/__tests__/index.spec.tsx
@@ -0,0 +1,138 @@
+import type { NoteNodeType } from '../types'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
+import { CUSTOM_NOTE_NODE } from '../constants'
+import NoteNode from '../index'
+import { NoteTheme } from '../types'
+
+const {
+  mockHandleEditorChange,
+  mockHandleNodeDataUpdateWithSyncDraft,
+  mockHandleNodeDelete,
+  mockHandleNodesCopy,
+  mockHandleNodesDuplicate,
+  mockHandleShowAuthorChange,
+  mockHandleThemeChange,
+  mockSetShortcutsEnabled,
+} = vi.hoisted(() => ({
+  mockHandleEditorChange: vi.fn(),
+  mockHandleNodeDataUpdateWithSyncDraft: vi.fn(),
+  mockHandleNodeDelete: vi.fn(),
+  mockHandleNodesCopy: vi.fn(),
+  mockHandleNodesDuplicate: vi.fn(),
+  mockHandleShowAuthorChange: vi.fn(),
+  mockHandleThemeChange: vi.fn(),
+  mockSetShortcutsEnabled: vi.fn(),
+}))
+
+vi.mock('../../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../../hooks')>()
+  return {
+    ...actual,
+    useNodeDataUpdate: () => ({
+      handleNodeDataUpdateWithSyncDraft: mockHandleNodeDataUpdateWithSyncDraft,
+    }),
+    useNodesInteractions: () => ({
+      handleNodesCopy: mockHandleNodesCopy,
+      handleNodesDuplicate: mockHandleNodesDuplicate,
+      handleNodeDelete: mockHandleNodeDelete,
+    }),
+  }
+})
+
+vi.mock('../hooks', () => ({
+  useNote: () => ({
+    handleThemeChange: mockHandleThemeChange,
+    handleEditorChange: mockHandleEditorChange,
+    handleShowAuthorChange: mockHandleShowAuthorChange,
+  }),
+}))
+
+vi.mock('../../workflow-history-store', () => ({
+  useWorkflowHistoryStore: () => ({
+    setShortcutsEnabled: mockSetShortcutsEnabled,
+  }),
+}))
+
+const createNoteData = (overrides: Partial<NoteNodeType> = {}): NoteNodeType => ({
+  title: '',
+  desc: '',
+  type: '' as unknown as NoteNodeType['type'],
+  text: '',
+  theme: NoteTheme.blue,
+  author: 'Alice',
+  showAuthor: true,
+  width: 240,
+  height: 88,
+  selected: true,
+  ...overrides,
+})
+
+const renderNoteNode = (dataOverrides: Partial<NoteNodeType> = {}) => {
+  const nodeData = createNoteData(dataOverrides)
+  const nodes = [
+    createNode({
+      id: 'note-1',
+      type: CUSTOM_NOTE_NODE,
+      data: nodeData,
+      selected: !!nodeData.selected,
+    }),
+  ]
+
+  return renderWorkflowFlowComponent(
+    <div />,
+    {
+      nodes,
+      edges: [],
+      reactFlowProps: {
+        nodeTypes: {
+          [CUSTOM_NOTE_NODE]: NoteNode,
+        },
+      },
+      initialStoreState: {
+        controlPromptEditorRerenderKey: 0,
+      },
+    },
+  )
+}
+
+describe('NoteNode', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should render the toolbar and author for a selected persistent note', async () => {
+    renderNoteNode()
+
+    expect(screen.getByText('Alice')).toBeInTheDocument()
+
+    await waitFor(() => {
+      expect(screen.getByText('workflow.nodes.note.editor.small')).toBeInTheDocument()
+    })
+  })
+
+  it('should hide the toolbar for temporary notes', () => {
+    renderNoteNode({
+      _isTempNode: true,
+      showAuthor: false,
+    })
+
+    expect(screen.queryByText('workflow.nodes.note.editor.small')).not.toBeInTheDocument()
+  })
+
+  it('should clear the selected state when clicking outside the note', async () => {
+    renderNoteNode()
+
+    fireEvent.click(document.body)
+
+    await waitFor(() => {
+      expect(mockHandleNodeDataUpdateWithSyncDraft).toHaveBeenCalledWith({
+        id: 'note-1',
+        data: {
+          selected: false,
+        },
+      })
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/__tests__/context.spec.tsx b/web/app/components/workflow/note-node/note-editor/__tests__/context.spec.tsx
new file mode 100644
index 0000000000..e816a331de
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/__tests__/context.spec.tsx
@@ -0,0 +1,138 @@
+import type { LexicalEditor } from 'lexical'
+import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext'
+import { render, screen, waitFor } from '@testing-library/react'
+import { $getRoot } from 'lexical'
+import { useEffect } from 'react'
+import { NoteEditorContextProvider } from '../context'
+import { useStore } from '../store'
+
+const emptyValue = JSON.stringify({ root: { children: [] } })
+const populatedValue = JSON.stringify({
+  root: {
+    children: [
+      {
+        children: [
+          {
+            detail: 0,
+            format: 0,
+            mode: 'normal',
+            style: '',
+            text: 'hello',
+            type: 'text',
+            version: 1,
+          },
+        ],
+        direction: null,
+        format: '',
+        indent: 0,
+        textFormat: 0,
+        textStyle: '',
+        type: 'paragraph',
+        version: 1,
+      },
+    ],
+    direction: null,
+    format: '',
+    indent: 0,
+    type: 'root',
+    version: 1,
+  },
+})
+
+const readEditorText = (editor: LexicalEditor) => {
+  let text = ''
+
+  editor.getEditorState().read(() => {
+    text = $getRoot().getTextContent()
+  })
+
+  return text
+}
+
+const ContextProbe = ({
+  onReady,
+}: {
+  onReady?: (editor: LexicalEditor) => void
+}) => {
+  const [editor] = useLexicalComposerContext()
+  const selectedIsBold = useStore(state => state.selectedIsBold)
+
+  useEffect(() => {
+    onReady?.(editor)
+  }, [editor, onReady])
+
+  return <div>{selectedIsBold ? 'bold' : 'not-bold'}</div>
+}
+
+describe('NoteEditorContextProvider', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Provider should expose the store and render the wrapped editor tree.
+  describe('Rendering', () => {
+    it('should render children with the note editor store defaults', async () => {
+      let editor: LexicalEditor | null = null
+
+      render(
+        <NoteEditorContextProvider value={emptyValue}>
+          <ContextProbe onReady={instance => (editor = instance)} />
+        </NoteEditorContextProvider>,
+      )
+
+      expect(screen.getByText('not-bold')).toBeInTheDocument()
+
+      await waitFor(() => {
+        expect(editor).not.toBeNull()
+      })
+
+      expect(editor!.isEditable()).toBe(true)
+      expect(readEditorText(editor!)).toBe('')
+    })
+  })
+
+  // Invalid or empty editor state should fall back to an empty lexical state.
+  describe('Editor State Initialization', () => {
+    it.each([
+      {
+        name: 'value is malformed json',
+        value: '{invalid',
+      },
+      {
+        name: 'root has no children',
+        value: emptyValue,
+      },
+    ])('should use an empty editor state when $name', async ({ value }) => {
+      let editor: LexicalEditor | null = null
+
+      render(
+        <NoteEditorContextProvider value={value}>
+          <ContextProbe onReady={instance => (editor = instance)} />
+        </NoteEditorContextProvider>,
+      )
+
+      await waitFor(() => {
+        expect(editor).not.toBeNull()
+      })
+
+      expect(readEditorText(editor!)).toBe('')
+    })
+
+    it('should restore lexical content and forward editable prop', async () => {
+      let editor: LexicalEditor | null = null
+
+      render(
+        <NoteEditorContextProvider value={populatedValue} editable={false}>
+          <ContextProbe onReady={instance => (editor = instance)} />
+        </NoteEditorContextProvider>,
+      )
+
+      await waitFor(() => {
+        expect(editor).not.toBeNull()
+        expect(readEditorText(editor!)).toBe('hello')
+      })
+
+      expect(editor!.isEditable()).toBe(false)
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/__tests__/editor.spec.tsx b/web/app/components/workflow/note-node/note-editor/__tests__/editor.spec.tsx
new file mode 100644
index 0000000000..9631d3e817
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/__tests__/editor.spec.tsx
@@ -0,0 +1,120 @@
+import type { EditorState, LexicalEditor } from 'lexical'
+import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext'
+import { act, fireEvent, render, screen, waitFor } from '@testing-library/react'
+import { $createParagraphNode, $createTextNode, $getRoot } from 'lexical'
+import { useEffect } from 'react'
+import { NoteEditorContextProvider } from '../context'
+import Editor from '../editor'
+
+const emptyValue = JSON.stringify({ root: { children: [] } })
+
+const EditorProbe = ({
+  onReady,
+}: {
+  onReady?: (editor: LexicalEditor) => void
+}) => {
+  const [editor] = useLexicalComposerContext()
+
+  useEffect(() => {
+    onReady?.(editor)
+  }, [editor, onReady])
+
+  return null
+}
+
+const renderEditor = (
+  props: Partial<React.ComponentProps<typeof Editor>> = {},
+  onEditorReady?: (editor: LexicalEditor) => void,
+) => {
+  return render(
+    <NoteEditorContextProvider value={emptyValue}>
+      <>
+        <Editor
+          containerElement={document.createElement('div')}
+          {...props}
+        />
+        <EditorProbe onReady={onEditorReady} />
+      </>
+    </NoteEditorContextProvider>,
+  )
+}
+
+describe('Editor', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Editor should render the lexical surface with the provided placeholder.
+  describe('Rendering', () => {
+    it('should render the placeholder text and content editable surface', () => {
+      renderEditor({ placeholder: 'Type note' })
+
+      expect(screen.getByText('Type note')).toBeInTheDocument()
+      expect(screen.getByRole('textbox')).toBeInTheDocument()
+    })
+  })
+
+  // Focus and blur should toggle workflow shortcuts while editing content.
+  describe('Focus Management', () => {
+    it('should disable shortcuts on focus and re-enable them on blur', () => {
+      const setShortcutsEnabled = vi.fn()
+
+      renderEditor({ setShortcutsEnabled })
+
+      const contentEditable = screen.getByRole('textbox')
+
+      fireEvent.focus(contentEditable)
+      fireEvent.blur(contentEditable)
+
+      expect(setShortcutsEnabled).toHaveBeenNthCalledWith(1, false)
+      expect(setShortcutsEnabled).toHaveBeenNthCalledWith(2, true)
+    })
+  })
+
+  // Lexical change events should be forwarded to the external onChange callback.
+  describe('Change Handling', () => {
+    it('should pass editor updates through onChange', async () => {
+      const changes: string[] = []
+      let editor: LexicalEditor | null = null
+      const handleChange = (editorState: EditorState) => {
+        editorState.read(() => {
+          changes.push($getRoot().getTextContent())
+        })
+      }
+
+      renderEditor({ onChange: handleChange }, instance => (editor = instance))
+
+      await waitFor(() => {
+        expect(editor).not.toBeNull()
+      })
+
+      await act(async () => {
+        await new Promise(resolve => setTimeout(resolve, 0))
+      })
+
+      act(() => {
+        editor!.update(() => {
+          const root = $getRoot()
+          root.clear()
+          const paragraph = $createParagraphNode()
+          paragraph.append($createTextNode('hello'))
+          root.append(paragraph)
+        }, { discrete: true })
+      })
+
+      act(() => {
+        editor!.update(() => {
+          const root = $getRoot()
+          root.clear()
+          const paragraph = $createParagraphNode()
+          paragraph.append($createTextNode('hello world'))
+          root.append(paragraph)
+        }, { discrete: true })
+      })
+
+      await waitFor(() => {
+        expect(changes).toContain('hello world')
+      })
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/plugins/format-detector-plugin/__tests__/index.spec.tsx b/web/app/components/workflow/note-node/note-editor/plugins/format-detector-plugin/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..ef347e01f2
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/plugins/format-detector-plugin/__tests__/index.spec.tsx
@@ -0,0 +1,24 @@
+import { render } from '@testing-library/react'
+import { NoteEditorContextProvider } from '../../../context'
+import FormatDetectorPlugin from '../index'
+
+const emptyValue = JSON.stringify({ root: { children: [] } })
+
+describe('FormatDetectorPlugin', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The plugin should register its observers without rendering extra UI.
+  describe('Rendering', () => {
+    it('should mount inside the real note editor context without visible output', () => {
+      const { container } = render(
+        <NoteEditorContextProvider value={emptyValue}>
+          <FormatDetectorPlugin />
+        </NoteEditorContextProvider>,
+      )
+
+      expect(container).toBeEmptyDOMElement()
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/plugins/link-editor-plugin/__tests__/index.spec.tsx b/web/app/components/workflow/note-node/note-editor/plugins/link-editor-plugin/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..89c554ed4a
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/plugins/link-editor-plugin/__tests__/index.spec.tsx
@@ -0,0 +1,71 @@
+import type { createNoteEditorStore } from '../../../store'
+import { act, render, screen, waitFor } from '@testing-library/react'
+import { useEffect } from 'react'
+import { NoteEditorContextProvider } from '../../../context'
+import { useNoteEditorStore } from '../../../store'
+import LinkEditorPlugin from '../index'
+
+type NoteEditorStore = ReturnType<typeof createNoteEditorStore>
+
+const emptyValue = JSON.stringify({ root: { children: [] } })
+
+const StoreProbe = ({
+  onReady,
+}: {
+  onReady?: (store: NoteEditorStore) => void
+}) => {
+  const store = useNoteEditorStore()
+
+  useEffect(() => {
+    onReady?.(store)
+  }, [onReady, store])
+
+  return null
+}
+
+describe('LinkEditorPlugin', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Without an anchor element the plugin should stay hidden.
+  describe('Visibility', () => {
+    it('should render nothing when no link anchor is selected', () => {
+      const { container } = render(
+        <NoteEditorContextProvider value={emptyValue}>
+          <LinkEditorPlugin containerElement={null} />
+        </NoteEditorContextProvider>,
+      )
+
+      expect(container).toBeEmptyDOMElement()
+      expect(screen.queryByRole('textbox')).not.toBeInTheDocument()
+    })
+
+    it('should render the link editor when the store has an anchor element', async () => {
+      let store: NoteEditorStore | null = null
+
+      render(
+        <NoteEditorContextProvider value={emptyValue}>
+          <StoreProbe onReady={instance => (store = instance)} />
+          <LinkEditorPlugin containerElement={document.createElement('div')} />
+        </NoteEditorContextProvider>,
+      )
+
+      await waitFor(() => {
+        expect(store).not.toBeNull()
+      })
+
+      act(() => {
+        store!.setState({
+          linkAnchorElement: document.createElement('a'),
+          linkOperatorShow: false,
+          selectedLinkUrl: 'https://example.com',
+        })
+      })
+
+      await waitFor(() => {
+        expect(screen.getByDisplayValue('https://example.com')).toBeInTheDocument()
+      })
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/color-picker.spec.tsx b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/color-picker.spec.tsx
new file mode 100644
index 0000000000..9f36b4a7ac
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/color-picker.spec.tsx
@@ -0,0 +1,32 @@
+import { fireEvent, render, waitFor } from '@testing-library/react'
+import { NoteTheme } from '../../../types'
+import ColorPicker, { COLOR_LIST } from '../color-picker'
+
+describe('NoteEditor ColorPicker', () => {
+  it('should open the palette and apply the selected theme', async () => {
+    const onThemeChange = vi.fn()
+    const { container } = render(
+      <ColorPicker theme={NoteTheme.blue} onThemeChange={onThemeChange} />,
+    )
+
+    const trigger = container.querySelector('[data-state="closed"]') as HTMLElement
+
+    fireEvent.click(trigger)
+
+    const popup = document.body.querySelector('[role="tooltip"]')
+
+    expect(popup).toBeInTheDocument()
+
+    const options = popup?.querySelectorAll('.group.relative')
+
+    expect(options).toHaveLength(COLOR_LIST.length)
+
+    fireEvent.click(options?.[COLOR_LIST.length - 1] as Element)
+
+    expect(onThemeChange).toHaveBeenCalledWith(NoteTheme.violet)
+
+    await waitFor(() => {
+      expect(document.body.querySelector('[role="tooltip"]')).not.toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/command.spec.tsx b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/command.spec.tsx
new file mode 100644
index 0000000000..289c5fa6e7
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/command.spec.tsx
@@ -0,0 +1,62 @@
+import { fireEvent, render } from '@testing-library/react'
+import Command from '../command'
+
+const { mockHandleCommand } = vi.hoisted(() => ({
+  mockHandleCommand: vi.fn(),
+}))
+
+let mockSelectedState = {
+  selectedIsBold: false,
+  selectedIsItalic: false,
+  selectedIsStrikeThrough: false,
+  selectedIsLink: false,
+  selectedIsBullet: false,
+}
+
+vi.mock('../../store', () => ({
+  useStore: (selector: (state: typeof mockSelectedState) => unknown) => selector(mockSelectedState),
+}))
+
+vi.mock('../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../hooks')>()
+  return {
+    ...actual,
+    useCommand: () => ({
+      handleCommand: mockHandleCommand,
+    }),
+  }
+})
+
+describe('NoteEditor Command', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockSelectedState = {
+      selectedIsBold: false,
+      selectedIsItalic: false,
+      selectedIsStrikeThrough: false,
+      selectedIsLink: false,
+      selectedIsBullet: false,
+    }
+  })
+
+  it('should highlight the active command and dispatch it on click', () => {
+    mockSelectedState.selectedIsBold = true
+    const { container } = render(<Command type="bold" />)
+
+    const trigger = container.querySelector('.cursor-pointer') as HTMLElement
+
+    expect(trigger).toHaveClass('bg-state-accent-active')
+
+    fireEvent.click(trigger)
+
+    expect(mockHandleCommand).toHaveBeenCalledWith('bold')
+  })
+
+  it('should keep inactive commands unhighlighted', () => {
+    const { container } = render(<Command type="link" />)
+
+    const trigger = container.querySelector('.cursor-pointer') as HTMLElement
+
+    expect(trigger).not.toHaveClass('bg-state-accent-active')
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/font-size-selector.spec.tsx b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/font-size-selector.spec.tsx
new file mode 100644
index 0000000000..e94b66e695
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/font-size-selector.spec.tsx
@@ -0,0 +1,55 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import FontSizeSelector from '../font-size-selector'
+
+const {
+  mockHandleFontSize,
+  mockHandleOpenFontSizeSelector,
+} = vi.hoisted(() => ({
+  mockHandleFontSize: vi.fn(),
+  mockHandleOpenFontSizeSelector: vi.fn(),
+}))
+
+let mockFontSizeSelectorShow = false
+let mockFontSize = '12px'
+
+vi.mock('../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../hooks')>()
+  return {
+    ...actual,
+    useFontSize: () => ({
+      fontSize: mockFontSize,
+      fontSizeSelectorShow: mockFontSizeSelectorShow,
+      handleFontSize: mockHandleFontSize,
+      handleOpenFontSizeSelector: mockHandleOpenFontSizeSelector,
+    }),
+  }
+})
+
+describe('NoteEditor FontSizeSelector', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockFontSizeSelectorShow = false
+    mockFontSize = '12px'
+  })
+
+  it('should show the current font size label and request opening when clicked', () => {
+    render(<FontSizeSelector />)
+
+    fireEvent.click(screen.getByText('workflow.nodes.note.editor.small'))
+
+    expect(mockHandleOpenFontSizeSelector).toHaveBeenCalledWith(true)
+  })
+
+  it('should select a new font size and close the popup', () => {
+    mockFontSizeSelectorShow = true
+    mockFontSize = '14px'
+
+    render(<FontSizeSelector />)
+
+    fireEvent.click(screen.getByText('workflow.nodes.note.editor.large'))
+
+    expect(screen.getAllByText('workflow.nodes.note.editor.medium').length).toBeGreaterThan(0)
+    expect(mockHandleFontSize).toHaveBeenCalledWith('16px')
+    expect(mockHandleOpenFontSizeSelector).toHaveBeenCalledWith(false)
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/index.spec.tsx b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..7a28295830
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/index.spec.tsx
@@ -0,0 +1,101 @@
+import { fireEvent, render, screen, waitFor } from '@testing-library/react'
+import { NoteTheme } from '../../../types'
+import Toolbar from '../index'
+
+const {
+  mockHandleCommand,
+  mockHandleFontSize,
+  mockHandleOpenFontSizeSelector,
+} = vi.hoisted(() => ({
+  mockHandleCommand: vi.fn(),
+  mockHandleFontSize: vi.fn(),
+  mockHandleOpenFontSizeSelector: vi.fn(),
+}))
+
+let mockFontSizeSelectorShow = false
+let mockFontSize = '14px'
+let mockSelectedState = {
+  selectedIsBold: false,
+  selectedIsItalic: false,
+  selectedIsStrikeThrough: false,
+  selectedIsLink: false,
+  selectedIsBullet: false,
+}
+
+vi.mock('../../store', () => ({
+  useStore: (selector: (state: typeof mockSelectedState) => unknown) => selector(mockSelectedState),
+}))
+
+vi.mock('../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../hooks')>()
+  return {
+    ...actual,
+    useCommand: () => ({
+      handleCommand: mockHandleCommand,
+    }),
+    useFontSize: () => ({
+      fontSize: mockFontSize,
+      fontSizeSelectorShow: mockFontSizeSelectorShow,
+      handleFontSize: mockHandleFontSize,
+      handleOpenFontSizeSelector: mockHandleOpenFontSizeSelector,
+    }),
+  }
+})
+
+describe('NoteEditor Toolbar', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockFontSizeSelectorShow = false
+    mockFontSize = '14px'
+    mockSelectedState = {
+      selectedIsBold: false,
+      selectedIsItalic: false,
+      selectedIsStrikeThrough: false,
+      selectedIsLink: false,
+      selectedIsBullet: false,
+    }
+  })
+
+  it('should compose the toolbar controls and forward callbacks from color and operator actions', async () => {
+    const onCopy = vi.fn()
+    const onDelete = vi.fn()
+    const onDuplicate = vi.fn()
+    const onShowAuthorChange = vi.fn()
+    const onThemeChange = vi.fn()
+    const { container } = render(
+      <Toolbar
+        theme={NoteTheme.blue}
+        onThemeChange={onThemeChange}
+        onCopy={onCopy}
+        onDuplicate={onDuplicate}
+        onDelete={onDelete}
+        showAuthor={false}
+        onShowAuthorChange={onShowAuthorChange}
+      />,
+    )
+
+    expect(screen.getByText('workflow.nodes.note.editor.medium')).toBeInTheDocument()
+
+    const triggers = container.querySelectorAll('[data-state="closed"]')
+
+    fireEvent.click(triggers[0] as HTMLElement)
+
+    const colorOptions = document.body.querySelectorAll('[role="tooltip"] .group.relative')
+
+    fireEvent.click(colorOptions[colorOptions.length - 1] as Element)
+
+    expect(onThemeChange).toHaveBeenCalledWith(NoteTheme.violet)
+
+    fireEvent.click(container.querySelectorAll('[data-state="closed"]')[container.querySelectorAll('[data-state="closed"]').length - 1] as HTMLElement)
+    fireEvent.click(screen.getByText('workflow.common.copy'))
+
+    expect(onCopy).toHaveBeenCalledTimes(1)
+
+    await waitFor(() => {
+      expect(document.body.querySelector('[role="tooltip"]')).not.toBeInTheDocument()
+    })
+    expect(onDelete).not.toHaveBeenCalled()
+    expect(onDuplicate).not.toHaveBeenCalled()
+    expect(onShowAuthorChange).not.toHaveBeenCalled()
+  })
+})
diff --git a/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/operator.spec.tsx b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/operator.spec.tsx
new file mode 100644
index 0000000000..1870bf913a
--- /dev/null
+++ b/web/app/components/workflow/note-node/note-editor/toolbar/__tests__/operator.spec.tsx
@@ -0,0 +1,67 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import Operator from '../operator'
+
+const renderOperator = (showAuthor = false) => {
+  const onCopy = vi.fn()
+  const onDuplicate = vi.fn()
+  const onDelete = vi.fn()
+  const onShowAuthorChange = vi.fn()
+
+  const renderResult = render(
+    <Operator
+      onCopy={onCopy}
+      onDuplicate={onDuplicate}
+      onDelete={onDelete}
+      showAuthor={showAuthor}
+      onShowAuthorChange={onShowAuthorChange}
+    />,
+  )
+
+  return {
+    ...renderResult,
+    onCopy,
+    onDelete,
+    onDuplicate,
+    onShowAuthorChange,
+  }
+}
+
+describe('NoteEditor Toolbar Operator', () => {
+  it('should trigger copy, duplicate, and delete from the opened menu', () => {
+    const {
+      container,
+      onCopy,
+      onDelete,
+      onDuplicate,
+    } = renderOperator()
+
+    const trigger = container.querySelector('[data-state="closed"]') as HTMLElement
+
+    fireEvent.click(trigger)
+    fireEvent.click(screen.getByText('workflow.common.copy'))
+
+    expect(onCopy).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(container.querySelector('[data-state="closed"]') as HTMLElement)
+    fireEvent.click(screen.getByText('workflow.common.duplicate'))
+
+    expect(onDuplicate).toHaveBeenCalledTimes(1)
+
+    fireEvent.click(container.querySelector('[data-state="closed"]') as HTMLElement)
+    fireEvent.click(screen.getByText('common.operation.delete'))
+
+    expect(onDelete).toHaveBeenCalledTimes(1)
+  })
+
+  it('should forward the switch state through onShowAuthorChange', () => {
+    const {
+      container,
+      onShowAuthorChange,
+    } = renderOperator(true)
+
+    fireEvent.click(container.querySelector('[data-state="closed"]') as HTMLElement)
+    fireEvent.click(screen.getByRole('switch'))
+
+    expect(onShowAuthorChange).toHaveBeenCalledWith(false)
+  })
+})
diff --git a/web/app/components/workflow/operator/__tests__/add-block.spec.tsx b/web/app/components/workflow/operator/__tests__/add-block.spec.tsx
index ab7ec2ef0e..86d4b63763 100644
--- a/web/app/components/workflow/operator/__tests__/add-block.spec.tsx
+++ b/web/app/components/workflow/operator/__tests__/add-block.spec.tsx
@@ -1,7 +1,8 @@
 import type { ReactNode } from 'react'
-import { act, render, screen, waitFor } from '@testing-library/react'
-import ReactFlow, { ReactFlowProvider } from 'reactflow'
+import { act, screen, waitFor } from '@testing-library/react'
 import { FlowType } from '@/types/common'
+import { createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
 import { BlockEnum } from '../../types'
 import AddBlock from '../add-block'
 
@@ -102,16 +103,8 @@ vi.mock('../tip-popup', () => ({
   default: ({ children }: { children?: ReactNode }) => <>{children}</>,
 }))
 
-const renderWithReactFlow = (nodes: Array<{ id: string, position: { x: number, y: number }, data: { type: BlockEnum } }>) => {
-  return render(
-    <div style={{ width: 800, height: 600 }}>
-      <ReactFlowProvider>
-        <ReactFlow nodes={nodes} edges={[]} fitView />
-        <AddBlock />
-      </ReactFlowProvider>
-    </div>,
-  )
-}
+const renderWithReactFlow = (nodes: Array<ReturnType<typeof createNode>>) =>
+  renderWorkflowFlowComponent(<AddBlock />, { nodes, edges: [] })
 
 describe('AddBlock', () => {
   beforeEach(() => {
@@ -145,7 +138,7 @@ describe('AddBlock', () => {
 
     it('should hide the start tab for chat mode and rag pipeline flows', async () => {
       mockIsChatMode = true
-      const { rerender } = renderWithReactFlow([])
+      const { unmount } = renderWithReactFlow([])
 
       await waitFor(() => expect(latestBlockSelectorProps).not.toBeNull())
 
@@ -153,14 +146,8 @@ describe('AddBlock', () => {
 
       mockIsChatMode = false
       mockFlowType = FlowType.ragPipeline
-      rerender(
-        <div style={{ width: 800, height: 600 }}>
-          <ReactFlowProvider>
-            <ReactFlow nodes={[]} edges={[]} fitView />
-            <AddBlock />
-          </ReactFlowProvider>
-        </div>,
-      )
+      unmount()
+      renderWithReactFlow([])
 
       expect(latestBlockSelectorProps?.showStartTab).toBe(false)
     })
@@ -182,8 +169,8 @@ describe('AddBlock', () => {
 
     it('should create a candidate node with an incremented title when a block is selected', async () => {
       renderWithReactFlow([
-        { id: 'node-1', position: { x: 0, y: 0 }, data: { type: BlockEnum.Answer } },
-        { id: 'node-2', position: { x: 80, y: 0 }, data: { type: BlockEnum.Answer } },
+        createNode({ id: 'node-1', position: { x: 0, y: 0 }, data: { type: BlockEnum.Answer } }),
+        createNode({ id: 'node-2', position: { x: 80, y: 0 }, data: { type: BlockEnum.Answer } }),
       ])
 
       await waitFor(() => expect(latestBlockSelectorProps).not.toBeNull())
diff --git a/web/app/components/workflow/operator/__tests__/index.spec.tsx b/web/app/components/workflow/operator/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..455f3aa0b5
--- /dev/null
+++ b/web/app/components/workflow/operator/__tests__/index.spec.tsx
@@ -0,0 +1,136 @@
+import { act, screen } from '@testing-library/react'
+import { createNode } from '../../__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
+import { BlockEnum } from '../../types'
+import Operator from '../index'
+
+const mockEmit = vi.fn()
+const mockDeleteAllInspectorVars = vi.fn()
+
+vi.mock('../../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../../hooks')>()
+  return {
+    ...actual,
+    useNodesSyncDraft: () => ({
+      handleSyncWorkflowDraft: vi.fn(),
+    }),
+    useWorkflowReadOnly: () => ({
+      workflowReadOnly: false,
+      getWorkflowReadOnly: () => false,
+    }),
+  }
+})
+
+vi.mock('../../hooks/use-inspect-vars-crud', () => ({
+  default: () => ({
+    conversationVars: [],
+    systemVars: [],
+    nodesWithInspectVars: [],
+    deleteAllInspectorVars: mockDeleteAllInspectorVars,
+  }),
+}))
+
+vi.mock('@/context/event-emitter', () => ({
+  useEventEmitterContextContext: () => ({
+    eventEmitter: {
+      emit: mockEmit,
+    },
+  }),
+}))
+
+const originalResizeObserver = globalThis.ResizeObserver
+let resizeObserverCallback: ResizeObserverCallback | undefined
+const observeSpy = vi.fn()
+const disconnectSpy = vi.fn()
+
+class MockResizeObserver {
+  constructor(callback: ResizeObserverCallback) {
+    resizeObserverCallback = callback
+  }
+
+  observe(...args: Parameters<ResizeObserver['observe']>) {
+    observeSpy(...args)
+  }
+
+  unobserve() {
+    return undefined
+  }
+
+  disconnect() {
+    disconnectSpy()
+  }
+}
+
+const renderOperator = (initialStoreState: Record<string, unknown> = {}) => {
+  return renderWorkflowFlowComponent(
+    <Operator handleUndo={vi.fn()} handleRedo={vi.fn()} />,
+    {
+      nodes: [createNode({
+        id: 'node-1',
+        data: {
+          type: BlockEnum.Code,
+          title: 'Code',
+          desc: '',
+        },
+      })],
+      edges: [],
+      initialStoreState,
+      historyStore: {
+        nodes: [],
+        edges: [],
+      },
+    },
+  )
+}
+
+describe('Operator', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    resizeObserverCallback = undefined
+    vi.stubGlobal('ResizeObserver', MockResizeObserver as unknown as typeof ResizeObserver)
+  })
+
+  afterEach(() => {
+    globalThis.ResizeObserver = originalResizeObserver
+  })
+
+  it('should keep the operator width on the 400px floor when the available width is smaller', () => {
+    const { container } = renderOperator({
+      workflowCanvasWidth: 620,
+      rightPanelWidth: 350,
+    })
+
+    expect(screen.getByText('workflow.debug.variableInspect.trigger.normal')).toBeInTheDocument()
+    expect(container.querySelector('div[style*="width: 400px"]')).toBeInTheDocument()
+  })
+
+  it('should fall back to auto width before layout metrics are ready', () => {
+    const { container } = renderOperator()
+
+    expect(container.querySelector('div[style*="width: auto"]')).toBeInTheDocument()
+  })
+
+  it('should sync the observed panel size back into the workflow store and disconnect on unmount', () => {
+    const { store, unmount } = renderOperator({
+      workflowCanvasWidth: 900,
+      rightPanelWidth: 260,
+    })
+
+    expect(observeSpy).toHaveBeenCalled()
+
+    act(() => {
+      resizeObserverCallback?.([
+        {
+          borderBoxSize: [{ inlineSize: 512, blockSize: 188 }],
+        } as unknown as ResizeObserverEntry,
+      ], {} as ResizeObserver)
+    })
+
+    expect(store.getState().bottomPanelWidth).toBe(512)
+    expect(store.getState().bottomPanelHeight).toBe(188)
+
+    unmount()
+
+    expect(disconnectSpy).toHaveBeenCalled()
+  })
+})
diff --git a/web/app/components/workflow/panel/__tests__/inputs-panel.spec.tsx b/web/app/components/workflow/panel/__tests__/inputs-panel.spec.tsx
index ddefe60b7e..8583ef99a7 100644
--- a/web/app/components/workflow/panel/__tests__/inputs-panel.spec.tsx
+++ b/web/app/components/workflow/panel/__tests__/inputs-panel.spec.tsx
@@ -3,11 +3,10 @@ import type { RunFile } from '../../types'
 import type { FileUpload } from '@/app/components/base/features/types'
 import { screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
-import ReactFlow, { ReactFlowProvider } from 'reactflow'
 import { TransferMethod } from '@/types/app'
 import { FlowType } from '@/types/common'
 import { createStartNode } from '../../__tests__/fixtures'
-import { renderWorkflowComponent } from '../../__tests__/workflow-test-env'
+import { renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
 import { InputVarType, WorkflowRunningStatus } from '../../types'
 import InputsPanel from '../inputs-panel'
 
@@ -64,18 +63,17 @@ const createHooksStoreProps = (
 
 const renderInputsPanel = (
   startNode: ReturnType<typeof createStartNode>,
-  options?: Parameters<typeof renderWorkflowComponent>[1],
-) => {
-  return renderWorkflowComponent(
-    <div style={{ width: 800, height: 600 }}>
-      <ReactFlowProvider>
-        <ReactFlow nodes={[startNode]} edges={[]} fitView />
-        <InputsPanel onRun={vi.fn()} />
-      </ReactFlowProvider>
-    </div>,
-    options,
+  options?: Omit<Parameters<typeof renderWorkflowFlowComponent>[1], 'nodes' | 'edges'>,
+  onRun = vi.fn(),
+) =>
+  renderWorkflowFlowComponent(
+    <InputsPanel onRun={onRun} />,
+    {
+      nodes: [startNode],
+      edges: [],
+      ...options,
+    },
   )
-}
 
 describe('InputsPanel', () => {
   beforeEach(() => {
@@ -169,34 +167,24 @@ describe('InputsPanel', () => {
       const onRun = vi.fn()
       const handleRun = vi.fn()
 
-      renderWorkflowComponent(
-        <div style={{ width: 800, height: 600 }}>
-          <ReactFlowProvider>
-            <ReactFlow
-              nodes={[
-                createStartNode({
-                  data: {
-                    variables: [
-                      {
-                        type: InputVarType.textInput,
-                        variable: 'question',
-                        label: 'Question',
-                        required: true,
-                        default: 'default question',
-                      },
-                    ],
-                  },
-                }),
-              ]}
-              edges={[]}
-              fitView
-            />
-            <InputsPanel onRun={onRun} />
-          </ReactFlowProvider>
-        </div>,
+      renderInputsPanel(
+        createStartNode({
+          data: {
+            variables: [
+              {
+                type: InputVarType.textInput,
+                variable: 'question',
+                label: 'Question',
+                required: true,
+                default: 'default question',
+              },
+            ],
+          },
+        }),
         {
           hooksStoreProps: createHooksStoreProps({ handleRun }),
         },
+        onRun,
       )
 
       await user.click(screen.getByRole('button', { name: 'workflow.singleRun.startRun' }))
@@ -217,36 +205,25 @@ describe('InputsPanel', () => {
       const onRun = vi.fn()
       const handleRun = vi.fn()
 
-      renderWorkflowComponent(
-        <div style={{ width: 800, height: 600 }}>
-          <ReactFlowProvider>
-            <ReactFlow
-              nodes={[
-                createStartNode({
-                  data: {
-                    variables: [
-                      {
-                        type: InputVarType.textInput,
-                        variable: 'question',
-                        label: 'Question',
-                        required: true,
-                      },
-                      {
-                        type: InputVarType.checkbox,
-                        variable: 'confirmed',
-                        label: 'Confirmed',
-                        required: false,
-                      },
-                    ],
-                  },
-                }),
-              ]}
-              edges={[]}
-              fitView
-            />
-            <InputsPanel onRun={onRun} />
-          </ReactFlowProvider>
-        </div>,
+      renderInputsPanel(
+        createStartNode({
+          data: {
+            variables: [
+              {
+                type: InputVarType.textInput,
+                variable: 'question',
+                label: 'Question',
+                required: true,
+              },
+              {
+                type: InputVarType.checkbox,
+                variable: 'confirmed',
+                label: 'Confirmed',
+                required: false,
+              },
+            ],
+          },
+        }),
         {
           initialStoreState: {
             inputs: {
@@ -266,6 +243,7 @@ describe('InputsPanel', () => {
             },
           }),
         },
+        onRun,
       )
 
       await user.click(screen.getByRole('button', { name: 'workflow.singleRun.startRun' }))
diff --git a/web/app/components/workflow/panel/debug-and-preview/index.spec.tsx b/web/app/components/workflow/panel/debug-and-preview/__tests__/index.spec.tsx
similarity index 100%
rename from web/app/components/workflow/panel/debug-and-preview/index.spec.tsx
rename to web/app/components/workflow/panel/debug-and-preview/__tests__/index.spec.tsx
diff --git a/web/app/components/workflow/panel/version-history-panel/__tests__/empty.spec.tsx b/web/app/components/workflow/panel/version-history-panel/__tests__/empty.spec.tsx
new file mode 100644
index 0000000000..a5044a22cc
--- /dev/null
+++ b/web/app/components/workflow/panel/version-history-panel/__tests__/empty.spec.tsx
@@ -0,0 +1,25 @@
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import Empty from '../empty'
+
+describe('VersionHistory Empty', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Empty state should show the reset action and forward user clicks.
+  describe('User Interactions', () => {
+    it('should call onResetFilter when the reset button is clicked', async () => {
+      const user = userEvent.setup()
+      const onResetFilter = vi.fn()
+
+      render(<Empty onResetFilter={onResetFilter} />)
+
+      expect(screen.getByText('workflow.versionHistory.filter.empty')).toBeInTheDocument()
+
+      await user.click(screen.getByRole('button', { name: 'workflow.versionHistory.filter.reset' }))
+
+      expect(onResetFilter).toHaveBeenCalledTimes(1)
+    })
+  })
+})
diff --git a/web/app/components/workflow/panel/version-history-panel/index.spec.tsx b/web/app/components/workflow/panel/version-history-panel/__tests__/index.spec.tsx
similarity index 87%
rename from web/app/components/workflow/panel/version-history-panel/index.spec.tsx
rename to web/app/components/workflow/panel/version-history-panel/__tests__/index.spec.tsx
index 1765459bcb..673c84ee12 100644
--- a/web/app/components/workflow/panel/version-history-panel/index.spec.tsx
+++ b/web/app/components/workflow/panel/version-history-panel/__tests__/index.spec.tsx
@@ -1,10 +1,16 @@
 import { fireEvent, render, screen } from '@testing-library/react'
-import { WorkflowVersion } from '../../types'
+import { WorkflowVersion } from '../../../types'
 
 const mockHandleRestoreFromPublishedWorkflow = vi.fn()
 const mockHandleLoadBackupDraft = vi.fn()
 const mockSetCurrentVersion = vi.fn()
 
+type MockWorkflowStoreState = {
+  setShowWorkflowVersionHistoryPanel: ReturnType<typeof vi.fn>
+  currentVersion: null
+  setCurrentVersion: typeof mockSetCurrentVersion
+}
+
 vi.mock('@/context/app-context', () => ({
   useSelector: () => ({ id: 'test-user-id' }),
 }))
@@ -69,7 +75,7 @@ vi.mock('@/service/use-workflow', () => ({
   }),
 }))
 
-vi.mock('../../hooks', () => ({
+vi.mock('../../../hooks', () => ({
   useDSL: () => ({ handleExportDSL: vi.fn() }),
   useNodesSyncDraft: () => ({ handleSyncWorkflowDraft: vi.fn() }),
   useWorkflowRun: () => ({
@@ -78,16 +84,16 @@ vi.mock('../../hooks', () => ({
   }),
 }))
 
-vi.mock('../../hooks-store', () => ({
+vi.mock('../../../hooks-store', () => ({
   useHooksStore: () => ({
     flowId: 'test-flow-id',
     flowType: 'workflow',
   }),
 }))
 
-vi.mock('../../store', () => ({
-  useStore: (selector: (state: any) => any) => {
-    const state = {
+vi.mock('../../../store', () => ({
+  useStore: <T,>(selector: (state: MockWorkflowStoreState) => T) => {
+    const state: MockWorkflowStoreState = {
       setShowWorkflowVersionHistoryPanel: vi.fn(),
       currentVersion: null,
       setCurrentVersion: mockSetCurrentVersion,
@@ -104,11 +110,11 @@ vi.mock('../../store', () => ({
   }),
 }))
 
-vi.mock('./delete-confirm-modal', () => ({
+vi.mock('../delete-confirm-modal', () => ({
   default: () => null,
 }))
 
-vi.mock('./restore-confirm-modal', () => ({
+vi.mock('../restore-confirm-modal', () => ({
   default: () => null,
 }))
 
@@ -123,7 +129,7 @@ describe('VersionHistoryPanel', () => {
 
   describe('Version Click Behavior', () => {
     it('should call handleLoadBackupDraft when draft version is selected on mount', async () => {
-      const { VersionHistoryPanel } = await import('./index')
+      const { VersionHistoryPanel } = await import('../index')
 
       render(
         <VersionHistoryPanel
@@ -137,7 +143,7 @@ describe('VersionHistoryPanel', () => {
     })
 
     it('should call handleRestoreFromPublishedWorkflow when clicking published version', async () => {
-      const { VersionHistoryPanel } = await import('./index')
+      const { VersionHistoryPanel } = await import('../index')
 
       render(
         <VersionHistoryPanel
diff --git a/web/app/components/workflow/panel/version-history-panel/__tests__/version-history-item.spec.tsx b/web/app/components/workflow/panel/version-history-panel/__tests__/version-history-item.spec.tsx
new file mode 100644
index 0000000000..2518b06c5c
--- /dev/null
+++ b/web/app/components/workflow/panel/version-history-panel/__tests__/version-history-item.spec.tsx
@@ -0,0 +1,151 @@
+import type { VersionHistory } from '@/types/workflow'
+import { fireEvent, render, screen, waitFor } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { VersionHistoryContextMenuOptions, WorkflowVersion } from '../../../types'
+import VersionHistoryItem from '../version-history-item'
+
+vi.mock('@/app/components/workflow/store', () => ({
+  useStore: (selector: (state: { pipelineId?: string }) => unknown) => selector({ pipelineId: undefined }),
+}))
+
+const createVersionHistory = (overrides: Partial<VersionHistory> = {}): VersionHistory => ({
+  id: 'version-1',
+  graph: {
+    nodes: [],
+    edges: [],
+    viewport: undefined,
+  },
+  features: {},
+  created_at: 1710000000,
+  created_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  hash: 'hash-1',
+  updated_at: 1710000000,
+  updated_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  tool_published: false,
+  environment_variables: [],
+  conversation_variables: [],
+  rag_pipeline_variables: undefined,
+  version: '2024-01-01T00:00:00Z',
+  marked_name: 'Release 1',
+  marked_comment: 'Initial release',
+  ...overrides,
+})
+
+describe('VersionHistoryItem', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Draft items should auto-select on mount and hide published-only metadata.
+  describe('Draft Behavior', () => {
+    it('should auto-select the draft version on mount', async () => {
+      const onClick = vi.fn()
+
+      render(
+        <VersionHistoryItem
+          item={createVersionHistory({
+            id: 'draft-version',
+            version: WorkflowVersion.Draft,
+            marked_name: '',
+            marked_comment: '',
+          })}
+          currentVersion={null}
+          latestVersionId="latest-version"
+          onClick={onClick}
+          handleClickMenuItem={vi.fn()}
+          isLast={false}
+        />,
+      )
+
+      expect(screen.getByText('workflow.versionHistory.currentDraft')).toBeInTheDocument()
+
+      await waitFor(() => {
+        expect(onClick).toHaveBeenCalledWith(expect.objectContaining({
+          version: WorkflowVersion.Draft,
+        }))
+      })
+
+      expect(screen.queryByText('Initial release')).not.toBeInTheDocument()
+    })
+  })
+
+  // Published items should expose metadata and the hover context menu.
+  describe('Published Items', () => {
+    it('should open the context menu for a latest named version and forward restore', async () => {
+      const user = userEvent.setup()
+      const handleClickMenuItem = vi.fn()
+      const onClick = vi.fn()
+
+      render(
+        <VersionHistoryItem
+          item={createVersionHistory()}
+          currentVersion={null}
+          latestVersionId="version-1"
+          onClick={onClick}
+          handleClickMenuItem={handleClickMenuItem}
+          isLast={false}
+        />,
+      )
+
+      const title = screen.getByText('Release 1')
+      const itemContainer = title.closest('.group')
+      if (!itemContainer)
+        throw new Error('Expected version history item container')
+
+      fireEvent.mouseEnter(itemContainer)
+
+      const triggerButton = await screen.findByRole('button')
+      await user.click(triggerButton)
+
+      expect(screen.getByText('workflow.versionHistory.latest')).toBeInTheDocument()
+      expect(screen.getByText('Initial release')).toBeInTheDocument()
+      expect(screen.getByText(/Alice$/)).toBeInTheDocument()
+      expect(screen.getByText('workflow.common.restore')).toBeInTheDocument()
+      expect(screen.getByText('workflow.versionHistory.editVersionInfo')).toBeInTheDocument()
+      expect(screen.getByText('app.export')).toBeInTheDocument()
+      expect(screen.getByText('workflow.versionHistory.copyId')).toBeInTheDocument()
+      expect(screen.queryByText('common.operation.delete')).not.toBeInTheDocument()
+
+      const restoreItem = screen.getByText('workflow.common.restore').closest('.cursor-pointer')
+      if (!restoreItem)
+        throw new Error('Expected restore menu item')
+
+      fireEvent.click(restoreItem)
+
+      expect(handleClickMenuItem).toHaveBeenCalledTimes(1)
+      expect(handleClickMenuItem).toHaveBeenCalledWith(
+        VersionHistoryContextMenuOptions.restore,
+        VersionHistoryContextMenuOptions.restore,
+      )
+    })
+
+    it('should ignore clicks when the item is already selected', async () => {
+      const user = userEvent.setup()
+      const onClick = vi.fn()
+      const item = createVersionHistory()
+
+      render(
+        <VersionHistoryItem
+          item={item}
+          currentVersion={item}
+          latestVersionId="other-version"
+          onClick={onClick}
+          handleClickMenuItem={vi.fn()}
+          isLast
+        />,
+      )
+
+      await user.click(screen.getByText('Release 1'))
+
+      expect(onClick).not.toHaveBeenCalled()
+    })
+  })
+})
diff --git a/web/app/components/workflow/panel/version-history-panel/filter/__tests__/index.spec.tsx b/web/app/components/workflow/panel/version-history-panel/filter/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..a35aeb163c
--- /dev/null
+++ b/web/app/components/workflow/panel/version-history-panel/filter/__tests__/index.spec.tsx
@@ -0,0 +1,102 @@
+import { fireEvent, render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { WorkflowVersionFilterOptions } from '../../../../types'
+import FilterItem from '../filter-item'
+import FilterSwitch from '../filter-switch'
+import Filter from '../index'
+
+describe('VersionHistory Filter Components', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The standalone switch should reflect state and emit checked changes.
+  describe('FilterSwitch', () => {
+    it('should render the switch label and emit toggled value', async () => {
+      const user = userEvent.setup()
+      const handleSwitch = vi.fn()
+
+      render(<FilterSwitch enabled={false} handleSwitch={handleSwitch} />)
+
+      expect(screen.getByText('workflow.versionHistory.filter.onlyShowNamedVersions')).toBeInTheDocument()
+      expect(screen.getByRole('switch')).toHaveAttribute('aria-checked', 'false')
+
+      await user.click(screen.getByRole('switch'))
+
+      expect(handleSwitch).toHaveBeenCalledWith(true)
+    })
+  })
+
+  // Filter items should show the current selection and forward the option key.
+  describe('FilterItem', () => {
+    it('should call onClick with the selected filter key', async () => {
+      const user = userEvent.setup()
+      const onClick = vi.fn()
+
+      const { container } = render(
+        <FilterItem
+          item={{
+            key: WorkflowVersionFilterOptions.onlyYours,
+            name: 'Only Yours',
+          }}
+          isSelected
+          onClick={onClick}
+        />,
+      )
+
+      expect(screen.getByText('Only Yours')).toBeInTheDocument()
+      expect(container.querySelector('svg')).toBeInTheDocument()
+
+      await user.click(screen.getByText('Only Yours'))
+
+      expect(onClick).toHaveBeenCalledWith(WorkflowVersionFilterOptions.onlyYours)
+    })
+  })
+
+  // The composed filter popover should open, list options, and delegate actions.
+  describe('Filter', () => {
+    it('should open the menu and forward option and switch actions', async () => {
+      const user = userEvent.setup()
+      const onClickFilterItem = vi.fn()
+      const handleSwitch = vi.fn()
+
+      const { container } = render(
+        <Filter
+          filterValue={WorkflowVersionFilterOptions.all}
+          isOnlyShowNamedVersions={false}
+          onClickFilterItem={onClickFilterItem}
+          handleSwitch={handleSwitch}
+        />,
+      )
+
+      const trigger = container.querySelector('.h-6.w-6')
+      if (!trigger)
+        throw new Error('Expected filter trigger to exist')
+
+      await user.click(trigger)
+
+      expect(screen.getByText('workflow.versionHistory.filter.all')).toBeInTheDocument()
+      expect(screen.getByText('workflow.versionHistory.filter.onlyYours')).toBeInTheDocument()
+
+      await user.click(screen.getByText('workflow.versionHistory.filter.onlyYours'))
+      expect(onClickFilterItem).toHaveBeenCalledWith(WorkflowVersionFilterOptions.onlyYours)
+
+      fireEvent.click(screen.getByRole('switch'))
+      expect(handleSwitch).toHaveBeenCalledWith(true)
+    })
+
+    it('should mark the trigger as active when a filter is applied', () => {
+      const { container } = render(
+        <Filter
+          filterValue={WorkflowVersionFilterOptions.onlyYours}
+          isOnlyShowNamedVersions={false}
+          onClickFilterItem={vi.fn()}
+          handleSwitch={vi.fn()}
+        />,
+      )
+
+      expect(container.querySelector('.bg-state-accent-active-alt')).toBeInTheDocument()
+      expect(container.querySelector('.text-text-accent')).toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/panel/version-history-panel/loading/__tests__/index.spec.tsx b/web/app/components/workflow/panel/version-history-panel/loading/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..68fc544156
--- /dev/null
+++ b/web/app/components/workflow/panel/version-history-panel/loading/__tests__/index.spec.tsx
@@ -0,0 +1,51 @@
+import { render } from '@testing-library/react'
+import Loading from '../index'
+import Item from '../item'
+
+describe('VersionHistory Loading', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Individual skeleton items should hide optional rows based on edge flags.
+  describe('Item', () => {
+    it('should hide the release note placeholder for the first row', () => {
+      const { container } = render(
+        <Item
+          titleWidth="w-1/3"
+          releaseNotesWidth="w-3/4"
+          isFirst
+          isLast={false}
+        />,
+      )
+
+      expect(container.querySelectorAll('.opacity-20')).toHaveLength(1)
+      expect(container.querySelector('.bg-divider-subtle')).toBeInTheDocument()
+    })
+
+    it('should hide the timeline connector for the last row', () => {
+      const { container } = render(
+        <Item
+          titleWidth="w-2/5"
+          releaseNotesWidth="w-4/6"
+          isFirst={false}
+          isLast
+        />,
+      )
+
+      expect(container.querySelectorAll('.opacity-20')).toHaveLength(2)
+      expect(container.querySelector('.absolute.left-4.top-6')).not.toBeInTheDocument()
+    })
+  })
+
+  // The loading list should render the configured number of timeline skeleton rows.
+  describe('Loading List', () => {
+    it('should render eight loading rows with the overlay mask', () => {
+      const { container } = render(<Loading />)
+
+      expect(container.querySelector('.bg-dataset-chunk-list-mask-bg')).toBeInTheDocument()
+      expect(container.querySelectorAll('.relative.flex.gap-x-1.p-2')).toHaveLength(8)
+      expect(container.querySelectorAll('.opacity-20')).toHaveLength(15)
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/__tests__/special-result-panel.spec.tsx b/web/app/components/workflow/run/__tests__/special-result-panel.spec.tsx
new file mode 100644
index 0000000000..8e09cf6741
--- /dev/null
+++ b/web/app/components/workflow/run/__tests__/special-result-panel.spec.tsx
@@ -0,0 +1,168 @@
+import type { AgentLogItemWithChildren, NodeTracing } from '@/types/workflow'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { BlockEnum } from '../../types'
+import SpecialResultPanel from '../special-result-panel'
+
+const mocks = vi.hoisted(() => ({
+  retryPanel: vi.fn(),
+  iterationPanel: vi.fn(),
+  loopPanel: vi.fn(),
+  agentPanel: vi.fn(),
+}))
+
+vi.mock('../retry-log', () => ({
+  RetryResultPanel: ({ list }: { list: NodeTracing[] }) => {
+    mocks.retryPanel(list)
+    return <div data-testid="retry-result-panel">{list.length}</div>
+  },
+}))
+
+vi.mock('../iteration-log', () => ({
+  IterationResultPanel: ({ list }: { list: NodeTracing[][] }) => {
+    mocks.iterationPanel(list)
+    return <div data-testid="iteration-result-panel">{list.length}</div>
+  },
+}))
+
+vi.mock('../loop-log', () => ({
+  LoopResultPanel: ({ list }: { list: NodeTracing[][] }) => {
+    mocks.loopPanel(list)
+    return <div data-testid="loop-result-panel">{list.length}</div>
+  },
+}))
+
+vi.mock('../agent-log', () => ({
+  AgentResultPanel: ({ agentOrToolLogItemStack }: { agentOrToolLogItemStack: AgentLogItemWithChildren[] }) => {
+    mocks.agentPanel(agentOrToolLogItemStack)
+    return <div data-testid="agent-result-panel">{agentOrToolLogItemStack.length}</div>
+  },
+}))
+
+const createNodeTracing = (overrides: Partial<NodeTracing> = {}): NodeTracing => ({
+  id: 'trace-1',
+  index: 0,
+  predecessor_node_id: '',
+  node_id: 'node-1',
+  node_type: BlockEnum.Code,
+  title: 'Code',
+  inputs: {},
+  inputs_truncated: false,
+  process_data: {},
+  process_data_truncated: false,
+  outputs: {},
+  outputs_truncated: false,
+  status: 'succeeded',
+  error: '',
+  elapsed_time: 0.2,
+  metadata: {
+    iterator_length: 0,
+    iterator_index: 0,
+    loop_length: 0,
+    loop_index: 0,
+  },
+  created_at: 1710000000,
+  created_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  finished_at: 1710000001,
+  execution_metadata: undefined,
+  ...overrides,
+})
+
+const createAgentLogItem = (overrides: Partial<AgentLogItemWithChildren> = {}): AgentLogItemWithChildren => ({
+  node_execution_id: 'exec-1',
+  message_id: 'message-1',
+  node_id: 'node-1',
+  label: 'Step 1',
+  data: {},
+  status: 'succeeded',
+  children: [],
+  ...overrides,
+})
+
+describe('SpecialResultPanel', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // The wrapper should isolate clicks from the parent tracing card.
+  describe('Event Isolation', () => {
+    it('should stop click propagation at the wrapper level', () => {
+      const parentClick = vi.fn()
+
+      const { container } = render(
+        <div onClick={parentClick}>
+          <SpecialResultPanel />
+        </div>,
+      )
+
+      const panelRoot = container.firstElementChild?.firstElementChild
+      if (!panelRoot)
+        throw new Error('Expected panel root element')
+
+      fireEvent.click(panelRoot)
+
+      expect(parentClick).not.toHaveBeenCalled()
+    })
+  })
+
+  // Panel branches should render only when their required props are present.
+  describe('Conditional Panels', () => {
+    it('should render retry, iteration, loop, and agent panels when their data is provided', () => {
+      const retryList = [createNodeTracing()]
+      const iterationList = [[createNodeTracing({ id: 'iter-1' })]]
+      const loopList = [[createNodeTracing({ id: 'loop-1' })]]
+      const agentStack = [createAgentLogItem()]
+      const agentMap = {
+        'message-1': [createAgentLogItem()],
+      }
+
+      render(
+        <SpecialResultPanel
+          showRetryDetail
+          setShowRetryDetailFalse={vi.fn()}
+          retryResultList={retryList}
+          showIteratingDetail
+          setShowIteratingDetailFalse={vi.fn()}
+          iterationResultList={iterationList}
+          showLoopingDetail
+          setShowLoopingDetailFalse={vi.fn()}
+          loopResultList={loopList}
+          agentOrToolLogItemStack={agentStack}
+          agentOrToolLogListMap={agentMap}
+          handleShowAgentOrToolLog={vi.fn()}
+        />,
+      )
+
+      expect(screen.getByTestId('retry-result-panel')).toHaveTextContent('1')
+      expect(screen.getByTestId('iteration-result-panel')).toHaveTextContent('1')
+      expect(screen.getByTestId('loop-result-panel')).toHaveTextContent('1')
+      expect(screen.getByTestId('agent-result-panel')).toHaveTextContent('1')
+      expect(mocks.retryPanel).toHaveBeenCalledWith(retryList)
+      expect(mocks.iterationPanel).toHaveBeenCalledWith(iterationList)
+      expect(mocks.loopPanel).toHaveBeenCalledWith(loopList)
+      expect(mocks.agentPanel).toHaveBeenCalledWith(agentStack)
+    })
+
+    it('should keep panels hidden when required guards are missing', () => {
+      render(
+        <SpecialResultPanel
+          showRetryDetail
+          retryResultList={[]}
+          showIteratingDetail
+          iterationResultList={[]}
+          showLoopingDetail
+          loopResultList={[]}
+          agentOrToolLogItemStack={[createAgentLogItem()]}
+        />,
+      )
+
+      expect(screen.queryByTestId('retry-result-panel')).not.toBeInTheDocument()
+      expect(screen.queryByTestId('iteration-result-panel')).not.toBeInTheDocument()
+      expect(screen.queryByTestId('loop-result-panel')).not.toBeInTheDocument()
+      expect(screen.queryByTestId('agent-result-panel')).not.toBeInTheDocument()
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/__tests__/status-container.spec.tsx b/web/app/components/workflow/run/__tests__/status-container.spec.tsx
new file mode 100644
index 0000000000..210d230b91
--- /dev/null
+++ b/web/app/components/workflow/run/__tests__/status-container.spec.tsx
@@ -0,0 +1,58 @@
+import { render, screen } from '@testing-library/react'
+import useTheme from '@/hooks/use-theme'
+import { Theme } from '@/types/app'
+import StatusContainer from '../status-container'
+
+vi.mock('@/hooks/use-theme', () => ({
+  default: vi.fn(),
+}))
+
+const mockUseTheme = vi.mocked(useTheme)
+
+describe('StatusContainer', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    mockUseTheme.mockReturnValue({ theme: Theme.light } as ReturnType<typeof useTheme>)
+  })
+
+  // Status styling should follow the current theme and runtime status.
+  describe('Status Variants', () => {
+    it('should render success styling for the light theme', () => {
+      const { container } = render(
+        <StatusContainer status="succeeded">
+          <span>Finished</span>
+        </StatusContainer>,
+      )
+
+      expect(screen.getByText('Finished')).toBeInTheDocument()
+      expect(container.firstElementChild).toHaveClass('bg-workflow-display-success-bg')
+      expect(container.firstElementChild).toHaveClass('text-text-success')
+      expect(container.querySelector('.bg-\\[url\\(\\~\\@\\/app\\/components\\/workflow\\/run\\/assets\\/highlight\\.svg\\)\\]')).toBeInTheDocument()
+    })
+
+    it('should render failed styling for the dark theme', () => {
+      mockUseTheme.mockReturnValue({ theme: Theme.dark } as ReturnType<typeof useTheme>)
+
+      const { container } = render(
+        <StatusContainer status="failed">
+          <span>Failed</span>
+        </StatusContainer>,
+      )
+
+      expect(container.firstElementChild).toHaveClass('bg-workflow-display-error-bg')
+      expect(container.firstElementChild).toHaveClass('text-text-warning')
+      expect(container.querySelector('.bg-\\[url\\(\\~\\@\\/app\\/components\\/workflow\\/run\\/assets\\/highlight-dark\\.svg\\)\\]')).toBeInTheDocument()
+    })
+
+    it('should render warning styling for paused runs', () => {
+      const { container } = render(
+        <StatusContainer status="paused">
+          <span>Paused</span>
+        </StatusContainer>,
+      )
+
+      expect(container.firstElementChild).toHaveClass('bg-workflow-display-warning-bg')
+      expect(container.firstElementChild).toHaveClass('text-text-destructive')
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/__tests__/status.spec.tsx b/web/app/components/workflow/run/__tests__/status.spec.tsx
index 25d3ceb278..01f32c4c47 100644
--- a/web/app/components/workflow/run/__tests__/status.spec.tsx
+++ b/web/app/components/workflow/run/__tests__/status.spec.tsx
@@ -1,8 +1,9 @@
 import type { WorkflowPausedDetailsResponse } from '@/models/log'
 import { render, screen } from '@testing-library/react'
+import { createDocLinkMock, resolveDocLink } from '../../__tests__/i18n'
 import Status from '../status'
 
-const mockDocLink = vi.fn((path: string) => `https://docs.example.com${path}`)
+const mockDocLink = createDocLinkMock()
 const mockUseWorkflowPausedDetails = vi.fn()
 
 vi.mock('@/context/i18n', () => ({
@@ -79,7 +80,7 @@ describe('Status', () => {
     const learnMoreLink = screen.getByRole('link', { name: 'workflow.common.learnMore' })
 
     expect(screen.getByText('EXCEPTION')).toBeInTheDocument()
-    expect(learnMoreLink).toHaveAttribute('href', 'https://docs.example.com/use-dify/debug/error-type')
+    expect(learnMoreLink).toHaveAttribute('href', resolveDocLink('/use-dify/debug/error-type'))
     expect(mockDocLink).toHaveBeenCalledWith('/use-dify/debug/error-type')
   })
 
diff --git a/web/app/components/workflow/run/agent-log/__tests__/agent-log-trigger.spec.tsx b/web/app/components/workflow/run/agent-log/__tests__/agent-log-trigger.spec.tsx
new file mode 100644
index 0000000000..29919e4ccf
--- /dev/null
+++ b/web/app/components/workflow/run/agent-log/__tests__/agent-log-trigger.spec.tsx
@@ -0,0 +1,112 @@
+import type { AgentLogItemWithChildren, NodeTracing } from '@/types/workflow'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { BlockEnum } from '../../../types'
+import AgentLogTrigger from '../agent-log-trigger'
+
+const createAgentLogItem = (overrides: Partial<AgentLogItemWithChildren> = {}): AgentLogItemWithChildren => ({
+  node_execution_id: 'exec-1',
+  message_id: 'message-1',
+  node_id: 'node-1',
+  label: 'Step 1',
+  data: {},
+  status: 'succeeded',
+  children: [],
+  ...overrides,
+})
+
+const createNodeTracing = (overrides: Partial<NodeTracing> = {}): NodeTracing => ({
+  id: 'trace-1',
+  index: 0,
+  predecessor_node_id: '',
+  node_id: 'node-1',
+  node_type: BlockEnum.Agent,
+  title: 'Agent',
+  inputs: {},
+  inputs_truncated: false,
+  process_data: {},
+  process_data_truncated: false,
+  outputs: {},
+  outputs_truncated: false,
+  status: 'succeeded',
+  error: '',
+  elapsed_time: 0.2,
+  execution_metadata: {
+    total_tokens: 0,
+    total_price: 0,
+    currency: 'USD',
+    tool_info: {
+      agent_strategy: 'Plan and execute',
+    },
+  },
+  metadata: {
+    iterator_length: 0,
+    iterator_index: 0,
+    loop_length: 0,
+    loop_index: 0,
+  },
+  created_at: 1710000000,
+  created_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  finished_at: 1710000001,
+  agentLog: [createAgentLogItem()],
+  ...overrides,
+})
+
+describe('AgentLogTrigger', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Agent triggers should expose strategy text and open the log stack payload.
+  describe('User Interactions', () => {
+    it('should show the agent strategy and pass the log payload on click', async () => {
+      const user = userEvent.setup()
+      const onShowAgentOrToolLog = vi.fn()
+      const agentLog = [createAgentLogItem({ message_id: 'message-1' })]
+
+      render(
+        <AgentLogTrigger
+          nodeInfo={createNodeTracing({ agentLog })}
+          onShowAgentOrToolLog={onShowAgentOrToolLog}
+        />,
+      )
+
+      expect(screen.getByText('workflow.nodes.agent.strategy.label')).toBeInTheDocument()
+      expect(screen.getByText('Plan and execute')).toBeInTheDocument()
+      expect(screen.getByText('runLog.detail')).toBeInTheDocument()
+
+      await user.click(screen.getByText('Plan and execute'))
+
+      expect(onShowAgentOrToolLog).toHaveBeenCalledWith({
+        message_id: 'trace-1',
+        children: agentLog,
+      })
+    })
+
+    it('should still open the detail view when no strategy label is available', async () => {
+      const user = userEvent.setup()
+      const onShowAgentOrToolLog = vi.fn()
+
+      render(
+        <AgentLogTrigger
+          nodeInfo={createNodeTracing({
+            execution_metadata: {
+              total_tokens: 0,
+              total_price: 0,
+              currency: 'USD',
+            },
+          })}
+          onShowAgentOrToolLog={onShowAgentOrToolLog}
+        />,
+      )
+
+      await user.click(screen.getByText('runLog.detail'))
+
+      expect(onShowAgentOrToolLog).toHaveBeenCalledTimes(1)
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/loop-log/__tests__/loop-log-trigger.spec.tsx b/web/app/components/workflow/run/loop-log/__tests__/loop-log-trigger.spec.tsx
new file mode 100644
index 0000000000..085e680f91
--- /dev/null
+++ b/web/app/components/workflow/run/loop-log/__tests__/loop-log-trigger.spec.tsx
@@ -0,0 +1,149 @@
+import type { LoopDurationMap, LoopVariableMap, NodeTracing } from '@/types/workflow'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { BlockEnum } from '../../../types'
+import LoopLogTrigger from '../loop-log-trigger'
+
+const createNodeTracing = (overrides: Partial<NodeTracing> = {}): NodeTracing => ({
+  id: 'trace-1',
+  index: 0,
+  predecessor_node_id: '',
+  node_id: 'loop-node',
+  node_type: BlockEnum.Loop,
+  title: 'Loop',
+  inputs: {},
+  inputs_truncated: false,
+  process_data: {},
+  process_data_truncated: false,
+  outputs: {},
+  outputs_truncated: false,
+  status: 'succeeded',
+  error: '',
+  elapsed_time: 0.2,
+  execution_metadata: {
+    total_tokens: 0,
+    total_price: 0,
+    currency: 'USD',
+  },
+  metadata: {
+    iterator_length: 0,
+    iterator_index: 0,
+    loop_length: 0,
+    loop_index: 0,
+  },
+  created_at: 1710000000,
+  created_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  finished_at: 1710000001,
+  ...overrides,
+})
+
+describe('LoopLogTrigger', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Loop triggers should summarize count/error status and forward structured details.
+  describe('Structured Detail Handling', () => {
+    it('should pass existing loop details, durations, and variables to the callback', async () => {
+      const user = userEvent.setup()
+      const onShowLoopResultList = vi.fn()
+      const detailList = [
+        [createNodeTracing({ id: 'loop-1-step-1', status: 'succeeded' })],
+        [createNodeTracing({ id: 'loop-2-step-1', status: 'failed' })],
+      ]
+      const loopDurationMap: LoopDurationMap = { 0: 1.2, 1: 2.5 }
+      const loopVariableMap: LoopVariableMap = { 1: { item: 'alpha' } }
+
+      render(
+        <div onClick={vi.fn()}>
+          <LoopLogTrigger
+            nodeInfo={createNodeTracing({
+              details: detailList,
+              loopDurationMap,
+              execution_metadata: {
+                total_tokens: 0,
+                total_price: 0,
+                currency: 'USD',
+                loop_duration_map: loopDurationMap,
+                loop_variable_map: loopVariableMap,
+              },
+            })}
+            onShowLoopResultList={onShowLoopResultList}
+          />
+        </div>,
+      )
+
+      expect(screen.getByText(/workflow\.nodes\.loop\.loop/)).toBeInTheDocument()
+      expect(screen.getByText(/workflow\.nodes\.loop\.error/)).toBeInTheDocument()
+
+      await user.click(screen.getByRole('button'))
+
+      expect(onShowLoopResultList).toHaveBeenCalledWith(detailList, loopDurationMap, loopVariableMap)
+    })
+
+    it('should reconstruct loop detail groups from execution metadata when details are absent', async () => {
+      const user = userEvent.setup()
+      const onShowLoopResultList = vi.fn()
+      const loopDurationMap: LoopDurationMap = {
+        'parallel-1': 1.5,
+        '2': 2.2,
+      }
+      const allExecutions = [
+        createNodeTracing({
+          id: 'parallel-child',
+          execution_metadata: {
+            total_tokens: 0,
+            total_price: 0,
+            currency: 'USD',
+            parallel_mode_run_id: 'parallel-1',
+          },
+        }),
+        createNodeTracing({
+          id: 'serial-child',
+          execution_metadata: {
+            total_tokens: 0,
+            total_price: 0,
+            currency: 'USD',
+            loop_id: 'loop-node',
+            loop_index: 2,
+          },
+        }),
+      ]
+
+      render(
+        <LoopLogTrigger
+          nodeInfo={createNodeTracing({
+            details: undefined,
+            execution_metadata: {
+              total_tokens: 0,
+              total_price: 0,
+              currency: 'USD',
+              loop_duration_map: loopDurationMap,
+              loop_variable_map: {},
+            },
+          })}
+          allExecutions={allExecutions}
+          onShowLoopResultList={onShowLoopResultList}
+        />,
+      )
+
+      await user.click(screen.getByRole('button'))
+
+      expect(onShowLoopResultList).toHaveBeenCalledTimes(1)
+      const [structuredList, durations, variableMap] = onShowLoopResultList.mock.calls[0]
+      expect(structuredList).toHaveLength(2)
+      expect(structuredList).toEqual(
+        expect.arrayContaining([
+          [allExecutions[0]],
+          [allExecutions[1]],
+        ]),
+      )
+      expect(durations).toEqual(loopDurationMap)
+      expect(variableMap).toEqual({})
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/retry-log/__tests__/retry-log-trigger.spec.tsx b/web/app/components/workflow/run/retry-log/__tests__/retry-log-trigger.spec.tsx
new file mode 100644
index 0000000000..14cc0e653b
--- /dev/null
+++ b/web/app/components/workflow/run/retry-log/__tests__/retry-log-trigger.spec.tsx
@@ -0,0 +1,90 @@
+import type { NodeTracing } from '@/types/workflow'
+import { render, screen } from '@testing-library/react'
+import userEvent from '@testing-library/user-event'
+import { BlockEnum } from '../../../types'
+import RetryLogTrigger from '../retry-log-trigger'
+
+const createNodeTracing = (overrides: Partial<NodeTracing> = {}): NodeTracing => ({
+  id: 'trace-1',
+  index: 0,
+  predecessor_node_id: '',
+  node_id: 'node-1',
+  node_type: BlockEnum.Code,
+  title: 'Code',
+  inputs: {},
+  inputs_truncated: false,
+  process_data: {},
+  process_data_truncated: false,
+  outputs: {},
+  outputs_truncated: false,
+  status: 'succeeded',
+  error: '',
+  elapsed_time: 0.2,
+  metadata: {
+    iterator_length: 0,
+    iterator_index: 0,
+    loop_length: 0,
+    loop_index: 0,
+  },
+  created_at: 1710000000,
+  created_by: {
+    id: 'user-1',
+    name: 'Alice',
+    email: 'alice@example.com',
+  },
+  finished_at: 1710000001,
+  outputs_full_content: undefined,
+  execution_metadata: undefined,
+  extras: undefined,
+  retryDetail: [],
+  ...overrides,
+})
+
+describe('RetryLogTrigger', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  // Clicking the trigger should stop bubbling and expose the retry detail list.
+  describe('User Interactions', () => {
+    it('should forward retry details and stop parent clicks', async () => {
+      const user = userEvent.setup()
+      const onShowRetryResultList = vi.fn()
+      const parentClick = vi.fn()
+      const retryDetail = [
+        createNodeTracing({ id: 'retry-1' }),
+        createNodeTracing({ id: 'retry-2' }),
+      ]
+
+      render(
+        <div onClick={parentClick}>
+          <RetryLogTrigger
+            nodeInfo={createNodeTracing({ retryDetail })}
+            onShowRetryResultList={onShowRetryResultList}
+          />
+        </div>,
+      )
+
+      await user.click(screen.getByRole('button', { name: 'workflow.nodes.common.retry.retries:{"num":2}' }))
+
+      expect(onShowRetryResultList).toHaveBeenCalledWith(retryDetail)
+      expect(parentClick).not.toHaveBeenCalled()
+    })
+
+    it('should fall back to an empty retry list when details are missing', async () => {
+      const user = userEvent.setup()
+      const onShowRetryResultList = vi.fn()
+
+      render(
+        <RetryLogTrigger
+          nodeInfo={createNodeTracing({ retryDetail: undefined })}
+          onShowRetryResultList={onShowRetryResultList}
+        />,
+      )
+
+      await user.click(screen.getByRole('button'))
+
+      expect(onShowRetryResultList).toHaveBeenCalledWith([])
+    })
+  })
+})
diff --git a/web/app/components/workflow/run/utils/format-log/graph-to-log-struct.spec.ts b/web/app/components/workflow/run/utils/format-log/__tests__/graph-to-log-struct.spec.ts
similarity index 99%
rename from web/app/components/workflow/run/utils/format-log/graph-to-log-struct.spec.ts
rename to web/app/components/workflow/run/utils/format-log/__tests__/graph-to-log-struct.spec.ts
index 10a139ee39..46c1cdb76f 100644
--- a/web/app/components/workflow/run/utils/format-log/graph-to-log-struct.spec.ts
+++ b/web/app/components/workflow/run/utils/format-log/__tests__/graph-to-log-struct.spec.ts
@@ -1,4 +1,4 @@
-import parseDSL from './graph-to-log-struct'
+import parseDSL from '../graph-to-log-struct'
 
 describe('parseDSL', () => {
   it('should parse plain nodes correctly', () => {
diff --git a/web/app/components/workflow/run/utils/format-log/agent/__tests__/index.spec.ts b/web/app/components/workflow/run/utils/format-log/agent/__tests__/index.spec.ts
new file mode 100644
index 0000000000..b147ac8d06
--- /dev/null
+++ b/web/app/components/workflow/run/utils/format-log/agent/__tests__/index.spec.ts
@@ -0,0 +1,13 @@
+import format from '..'
+import { agentNodeData, multiStepsCircle, oneStepCircle } from '../data'
+
+describe('agent', () => {
+  it('list should transform to tree', () => {
+    expect(format(agentNodeData.in as unknown as Parameters<typeof format>[0])).toEqual(agentNodeData.expect)
+  })
+
+  it('list should remove circle log item', () => {
+    expect(format(oneStepCircle.in as unknown as Parameters<typeof format>[0])).toEqual(oneStepCircle.expect)
+    expect(format(multiStepsCircle.in as unknown as Parameters<typeof format>[0])).toEqual(multiStepsCircle.expect)
+  })
+})
diff --git a/web/app/components/workflow/run/utils/format-log/agent/index.spec.ts b/web/app/components/workflow/run/utils/format-log/agent/index.spec.ts
deleted file mode 100644
index 9359e227be..0000000000
--- a/web/app/components/workflow/run/utils/format-log/agent/index.spec.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import format from '.'
-import { agentNodeData, multiStepsCircle, oneStepCircle } from './data'
-
-describe('agent', () => {
-  it('list should transform to tree', () => {
-    // console.log(format(agentNodeData.in as any))
-    expect(format(agentNodeData.in as any)).toEqual(agentNodeData.expect)
-  })
-
-  it('list should remove circle log item', () => {
-    // format(oneStepCircle.in as any)
-    expect(format(oneStepCircle.in as any)).toEqual(oneStepCircle.expect)
-    expect(format(multiStepsCircle.in as any)).toEqual(multiStepsCircle.expect)
-  })
-})
diff --git a/web/app/components/workflow/run/utils/format-log/iteration/index.spec.ts b/web/app/components/workflow/run/utils/format-log/iteration/__tests__/index.spec.ts
similarity index 59%
rename from web/app/components/workflow/run/utils/format-log/iteration/index.spec.ts
rename to web/app/components/workflow/run/utils/format-log/iteration/__tests__/index.spec.ts
index f984dbea76..5b427bd9cf 100644
--- a/web/app/components/workflow/run/utils/format-log/iteration/index.spec.ts
+++ b/web/app/components/workflow/run/utils/format-log/iteration/__tests__/index.spec.ts
@@ -1,16 +1,16 @@
+import type { NodeTracing } from '@/types/workflow'
 import { noop } from 'es-toolkit/function'
-import format from '.'
-import graphToLogStruct from '../graph-to-log-struct'
+import format from '..'
+import graphToLogStruct from '../../graph-to-log-struct'
 
 describe('iteration', () => {
   const list = graphToLogStruct('start -> (iteration, iterationNode, plainNode1 -> plainNode2)')
-  // const [startNode, iterationNode, ...iterations] = list
-  const result = format(list as any, noop)
+  const result = format(list as NodeTracing[], noop)
   it('result should have no nodes in iteration node', () => {
-    expect((result as any).find((item: any) => !!item.execution_metadata?.iteration_id)).toBeUndefined()
+    expect(result.find(item => !!item.execution_metadata?.iteration_id)).toBeUndefined()
   })
   // test('iteration should put nodes in details', () => {
-  //   expect(result as any).toEqual([
+  //   expect(result).toEqual([
   //     startNode,
   //     {
   //       ...iterationNode,
diff --git a/web/app/components/workflow/run/utils/format-log/loop/index.spec.ts b/web/app/components/workflow/run/utils/format-log/loop/__tests__/index.spec.ts
similarity index 75%
rename from web/app/components/workflow/run/utils/format-log/loop/index.spec.ts
rename to web/app/components/workflow/run/utils/format-log/loop/__tests__/index.spec.ts
index d2a2fd24bb..f352598943 100644
--- a/web/app/components/workflow/run/utils/format-log/loop/index.spec.ts
+++ b/web/app/components/workflow/run/utils/format-log/loop/__tests__/index.spec.ts
@@ -1,11 +1,12 @@
+import type { NodeTracing } from '@/types/workflow'
 import { noop } from 'es-toolkit/function'
-import format from '.'
-import graphToLogStruct from '../graph-to-log-struct'
+import format from '..'
+import graphToLogStruct from '../../graph-to-log-struct'
 
 describe('loop', () => {
   const list = graphToLogStruct('start -> (loop, loopNode, plainNode1 -> plainNode2)')
   const [startNode, loopNode, ...loops] = list
-  const result = format(list as any, noop)
+  const result = format(list as NodeTracing[], noop)
   it('result should have no nodes in loop node', () => {
     expect(result.find(item => !!item.execution_metadata?.loop_id)).toBeUndefined()
   })
diff --git a/web/app/components/workflow/run/utils/format-log/retry/index.spec.ts b/web/app/components/workflow/run/utils/format-log/retry/__tests__/index.spec.ts
similarity index 72%
rename from web/app/components/workflow/run/utils/format-log/retry/index.spec.ts
rename to web/app/components/workflow/run/utils/format-log/retry/__tests__/index.spec.ts
index cb823a0e91..7d497061f6 100644
--- a/web/app/components/workflow/run/utils/format-log/retry/index.spec.ts
+++ b/web/app/components/workflow/run/utils/format-log/retry/__tests__/index.spec.ts
@@ -1,11 +1,12 @@
-import format from '.'
-import graphToLogStruct from '../graph-to-log-struct'
+import type { NodeTracing } from '@/types/workflow'
+import format from '..'
+import graphToLogStruct from '../../graph-to-log-struct'
 
 describe('retry', () => {
   // retry nodeId:1 3 times.
   const steps = graphToLogStruct('start -> (retry, retryNode, 3)')
   const [startNode, retryNode, ...retryDetail] = steps
-  const result = format(steps as any)
+  const result = format(steps as NodeTracing[])
   it('should have no retry status nodes', () => {
     expect(result.find(item => item.status === 'retry')).toBeUndefined()
   })
diff --git a/web/app/components/workflow/utils/plugin-install-check.spec.ts b/web/app/components/workflow/utils/__tests__/plugin-install-check.spec.ts
similarity index 96%
rename from web/app/components/workflow/utils/plugin-install-check.spec.ts
rename to web/app/components/workflow/utils/__tests__/plugin-install-check.spec.ts
index e37315328e..a2401ea3ac 100644
--- a/web/app/components/workflow/utils/plugin-install-check.spec.ts
+++ b/web/app/components/workflow/utils/__tests__/plugin-install-check.spec.ts
@@ -1,14 +1,14 @@
-import type { TriggerWithProvider } from '../block-selector/types'
-import type { CommonNodeType, ToolWithProvider } from '../types'
+import type { TriggerWithProvider } from '../../block-selector/types'
+import type { CommonNodeType, ToolWithProvider } from '../../types'
 import { CollectionType } from '@/app/components/tools/types'
-import { BlockEnum } from '../types'
+import { BlockEnum } from '../../types'
 import {
   isNodePluginMissing,
   isPluginDependentNode,
   matchDataSource,
   matchToolInCollection,
   matchTriggerProvider,
-} from './plugin-install-check'
+} from '../plugin-install-check'
 
 const createTool = (overrides: Partial<ToolWithProvider> = {}): ToolWithProvider => ({
   id: 'langgenius/search/search',
diff --git a/web/app/components/workflow/variable-inspect/__tests__/empty.spec.tsx b/web/app/components/workflow/variable-inspect/__tests__/empty.spec.tsx
new file mode 100644
index 0000000000..032bf88708
--- /dev/null
+++ b/web/app/components/workflow/variable-inspect/__tests__/empty.spec.tsx
@@ -0,0 +1,27 @@
+import { render, screen } from '@testing-library/react'
+import { createDocLinkMock, resolveDocLink } from '../../__tests__/i18n'
+import Empty from '../empty'
+
+const mockDocLink = createDocLinkMock()
+
+vi.mock('@/context/i18n', () => ({
+  useDocLink: () => mockDocLink,
+}))
+
+describe('VariableInspect Empty', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should render the empty-state copy and docs link', () => {
+    render(<Empty />)
+
+    const link = screen.getByRole('link', { name: 'workflow.debug.variableInspect.emptyLink' })
+
+    expect(screen.getByText('workflow.debug.variableInspect.title')).toBeInTheDocument()
+    expect(screen.getByText('workflow.debug.variableInspect.emptyTip')).toBeInTheDocument()
+    expect(link).toHaveAttribute('href', resolveDocLink('/use-dify/debug/variable-inspect'))
+    expect(link).toHaveAttribute('target', '_blank')
+    expect(mockDocLink).toHaveBeenCalledWith('/use-dify/debug/variable-inspect')
+  })
+})
diff --git a/web/app/components/workflow/variable-inspect/__tests__/group.spec.tsx b/web/app/components/workflow/variable-inspect/__tests__/group.spec.tsx
new file mode 100644
index 0000000000..9c64466d56
--- /dev/null
+++ b/web/app/components/workflow/variable-inspect/__tests__/group.spec.tsx
@@ -0,0 +1,131 @@
+import type { NodeWithVar, VarInInspect } from '@/types/workflow'
+import { fireEvent, render, screen } from '@testing-library/react'
+import { VarInInspectType } from '@/types/workflow'
+import { BlockEnum, VarType } from '../../types'
+import Group from '../group'
+
+const mockUseToolIcon = vi.fn(() => '')
+
+vi.mock('../../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../../hooks')>()
+  return {
+    ...actual,
+    useToolIcon: () => mockUseToolIcon(),
+  }
+})
+
+const createVar = (overrides: Partial<VarInInspect> = {}): VarInInspect => ({
+  id: 'var-1',
+  type: VarInInspectType.node,
+  name: 'message',
+  description: '',
+  selector: ['node-1', 'message'],
+  value_type: VarType.string,
+  value: 'hello',
+  edited: false,
+  visible: true,
+  is_truncated: false,
+  full_content: {
+    size_bytes: 0,
+    download_url: '',
+  },
+  ...overrides,
+})
+
+const createNodeData = (overrides: Partial<NodeWithVar> = {}): NodeWithVar => ({
+  nodeId: 'node-1',
+  nodePayload: {
+    type: BlockEnum.Code,
+    title: 'Code',
+    desc: '',
+  },
+  nodeType: BlockEnum.Code,
+  title: 'Code',
+  vars: [],
+  ...overrides,
+})
+
+describe('VariableInspect Group', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('should mask secret environment variables before selecting them', () => {
+    const handleSelect = vi.fn()
+
+    render(
+      <Group
+        varType={VarInInspectType.environment}
+        varList={[
+          createVar({
+            id: 'env-secret',
+            type: VarInInspectType.environment,
+            name: 'API_KEY',
+            value_type: VarType.secret,
+            value: 'plain-secret',
+          }),
+        ]}
+        handleSelect={handleSelect}
+      />,
+    )
+
+    fireEvent.click(screen.getByText('API_KEY'))
+
+    expect(screen.getByText('workflow.debug.variableInspect.envNode')).toBeInTheDocument()
+    expect(handleSelect).toHaveBeenCalledWith({
+      nodeId: VarInInspectType.environment,
+      nodeType: VarInInspectType.environment,
+      title: VarInInspectType.environment,
+      var: expect.objectContaining({
+        id: 'env-secret',
+        type: VarInInspectType.environment,
+        value: '******************',
+      }),
+    })
+  })
+
+  it('should hide invisible variables and collapse the list when the group header is clicked', () => {
+    render(
+      <Group
+        nodeData={createNodeData()}
+        varType={VarInInspectType.node}
+        varList={[
+          createVar({ id: 'visible-var', name: 'visible_var' }),
+          createVar({ id: 'hidden-var', name: 'hidden_var', visible: false }),
+        ]}
+        handleSelect={vi.fn()}
+      />,
+    )
+
+    expect(screen.getByText('visible_var')).toBeInTheDocument()
+    expect(screen.queryByText('hidden_var')).not.toBeInTheDocument()
+
+    fireEvent.click(screen.getByText('Code'))
+
+    expect(screen.queryByText('visible_var')).not.toBeInTheDocument()
+  })
+
+  it('should expose node view and clear actions for node groups', () => {
+    const handleView = vi.fn()
+    const handleClear = vi.fn()
+
+    render(
+      <Group
+        nodeData={createNodeData()}
+        varType={VarInInspectType.node}
+        varList={[createVar()]}
+        handleSelect={vi.fn()}
+        handleView={handleView}
+        handleClear={handleClear}
+      />,
+    )
+
+    const actionButtons = screen.getAllByRole('button')
+
+    fireEvent.click(actionButtons[0])
+    fireEvent.click(actionButtons[1])
+
+    expect(handleView).toHaveBeenCalledTimes(1)
+    expect(handleClear).toHaveBeenCalledTimes(1)
+  })
+})
diff --git a/web/app/components/workflow/variable-inspect/__tests__/large-data-alert.spec.tsx b/web/app/components/workflow/variable-inspect/__tests__/large-data-alert.spec.tsx
new file mode 100644
index 0000000000..ce180b2531
--- /dev/null
+++ b/web/app/components/workflow/variable-inspect/__tests__/large-data-alert.spec.tsx
@@ -0,0 +1,19 @@
+import { render, screen } from '@testing-library/react'
+import LargeDataAlert from '../large-data-alert'
+
+describe('LargeDataAlert', () => {
+  it('should render the default message and export action when a download URL exists', () => {
+    const { container } = render(<LargeDataAlert downloadUrl="https://example.com/export.json" className="extra-alert" />)
+
+    expect(screen.getByText('workflow.debug.variableInspect.largeData')).toBeInTheDocument()
+    expect(screen.getByText('workflow.debug.variableInspect.export')).toBeInTheDocument()
+    expect(container.firstChild).toHaveClass('extra-alert')
+  })
+
+  it('should render the no-export message and omit the export action when the URL is missing', () => {
+    render(<LargeDataAlert textHasNoExport />)
+
+    expect(screen.getByText('workflow.debug.variableInspect.largeDataNoExport')).toBeInTheDocument()
+    expect(screen.queryByText('workflow.debug.variableInspect.export')).not.toBeInTheDocument()
+  })
+})
diff --git a/web/app/components/workflow/variable-inspect/__tests__/panel.spec.tsx b/web/app/components/workflow/variable-inspect/__tests__/panel.spec.tsx
new file mode 100644
index 0000000000..2bd1fbb00f
--- /dev/null
+++ b/web/app/components/workflow/variable-inspect/__tests__/panel.spec.tsx
@@ -0,0 +1,173 @@
+import type { EnvironmentVariable } from '../../types'
+import type { NodeWithVar, VarInInspect } from '@/types/workflow'
+import { fireEvent, screen, waitFor } from '@testing-library/react'
+import { renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
+import { BlockEnum } from '../../types'
+import Panel from '../panel'
+import { EVENT_WORKFLOW_STOP } from '../types'
+
+type InspectVarsState = {
+  conversationVars: VarInInspect[]
+  systemVars: VarInInspect[]
+  nodesWithInspectVars: NodeWithVar[]
+}
+
+const {
+  mockEditInspectVarValue,
+  mockEmit,
+  mockFetchInspectVarValue,
+  mockHandleNodeSelect,
+  mockResetConversationVar,
+  mockResetToLastRunVar,
+  mockSetInputs,
+} = vi.hoisted(() => ({
+  mockEditInspectVarValue: vi.fn(),
+  mockEmit: vi.fn(),
+  mockFetchInspectVarValue: vi.fn(),
+  mockHandleNodeSelect: vi.fn(),
+  mockResetConversationVar: vi.fn(),
+  mockResetToLastRunVar: vi.fn(),
+  mockSetInputs: vi.fn(),
+}))
+
+let inspectVarsState: InspectVarsState
+
+vi.mock('../../hooks/use-inspect-vars-crud', () => ({
+  default: () => ({
+    ...inspectVarsState,
+    deleteAllInspectorVars: vi.fn(),
+    deleteNodeInspectorVars: vi.fn(),
+    editInspectVarValue: mockEditInspectVarValue,
+    fetchInspectVarValue: mockFetchInspectVarValue,
+    resetConversationVar: mockResetConversationVar,
+    resetToLastRunVar: mockResetToLastRunVar,
+  }),
+}))
+
+vi.mock('../../nodes/_base/components/variable/use-match-schema-type', () => ({
+  default: () => ({
+    isLoading: false,
+    schemaTypeDefinitions: {},
+  }),
+}))
+
+vi.mock('../../hooks/use-nodes-interactions', () => ({
+  useNodesInteractions: () => ({
+    handleNodeSelect: mockHandleNodeSelect,
+  }),
+}))
+
+vi.mock('../../hooks', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('../../hooks')>()
+  return {
+    ...actual,
+    useNodesInteractions: () => ({
+      handleNodeSelect: mockHandleNodeSelect,
+    }),
+    useToolIcon: () => '',
+  }
+})
+
+vi.mock('../../nodes/_base/hooks/use-node-crud', () => ({
+  default: () => ({
+    setInputs: mockSetInputs,
+  }),
+}))
+
+vi.mock('../../nodes/_base/hooks/use-node-info', () => ({
+  default: () => ({
+    node: undefined,
+  }),
+}))
+
+vi.mock('../../hooks-store', () => ({
+  useHooksStore: <T,>(selector: (state: { configsMap?: { flowId: string } }) => T) =>
+    selector({
+      configsMap: {
+        flowId: 'flow-1',
+      },
+    }),
+}))
+
+vi.mock('@/context/event-emitter', () => ({
+  useEventEmitterContextContext: () => ({
+    eventEmitter: {
+      emit: mockEmit,
+    },
+  }),
+}))
+
+const createEnvironmentVariable = (overrides: Partial<EnvironmentVariable> = {}): EnvironmentVariable => ({
+  id: 'env-1',
+  name: 'API_KEY',
+  value: 'env-value',
+  value_type: 'string',
+  description: '',
+  ...overrides,
+})
+
+const renderPanel = (initialStoreState: Record<string, unknown> = {}) => {
+  return renderWorkflowFlowComponent(
+    <Panel />,
+    {
+      nodes: [],
+      edges: [],
+      initialStoreState,
+      historyStore: {
+        nodes: [],
+        edges: [],
+      },
+    },
+  )
+}
+
+describe('VariableInspect Panel', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    inspectVarsState = {
+      conversationVars: [],
+      systemVars: [],
+      nodesWithInspectVars: [],
+    }
+  })
+
+  it('should render the listening state and stop the workflow on demand', () => {
+    renderPanel({
+      isListening: true,
+      listeningTriggerType: BlockEnum.TriggerWebhook,
+    })
+
+    fireEvent.click(screen.getByRole('button', { name: 'workflow.debug.variableInspect.listening.stopButton' }))
+
+    expect(screen.getByText('workflow.debug.variableInspect.listening.title')).toBeInTheDocument()
+    expect(mockEmit).toHaveBeenCalledWith({
+      type: EVENT_WORKFLOW_STOP,
+    })
+  })
+
+  it('should render the empty state and close the panel from the header action', () => {
+    const { store } = renderPanel({
+      showVariableInspectPanel: true,
+    })
+
+    fireEvent.click(screen.getAllByRole('button')[0])
+
+    expect(screen.getByText('workflow.debug.variableInspect.emptyTip')).toBeInTheDocument()
+    expect(store.getState().showVariableInspectPanel).toBe(false)
+  })
+
+  it('should select an environment variable and show its details in the right panel', async () => {
+    renderPanel({
+      environmentVariables: [createEnvironmentVariable()],
+      bottomPanelWidth: 560,
+    })
+
+    fireEvent.click(screen.getByText('API_KEY'))
+
+    await waitFor(() => expect(screen.getAllByText('API_KEY').length).toBeGreaterThan(1))
+
+    expect(screen.getByText('workflow.debug.variableInspect.envNode')).toBeInTheDocument()
+    expect(screen.getAllByText('string').length).toBeGreaterThan(0)
+    expect(screen.getByText('env-value')).toBeInTheDocument()
+  })
+})
diff --git a/web/app/components/workflow/variable-inspect/__tests__/trigger.spec.tsx b/web/app/components/workflow/variable-inspect/__tests__/trigger.spec.tsx
new file mode 100644
index 0000000000..6d2f2ffc02
--- /dev/null
+++ b/web/app/components/workflow/variable-inspect/__tests__/trigger.spec.tsx
@@ -0,0 +1,153 @@
+import type { NodeWithVar, VarInInspect } from '@/types/workflow'
+import { fireEvent, screen } from '@testing-library/react'
+import { VarInInspectType } from '@/types/workflow'
+import { createNode } from '../../__tests__/fixtures'
+import { baseRunningData, renderWorkflowFlowComponent } from '../../__tests__/workflow-test-env'
+import { BlockEnum, NodeRunningStatus, VarType, WorkflowRunningStatus } from '../../types'
+import VariableInspectTrigger from '../trigger'
+
+type InspectVarsState = {
+  conversationVars: VarInInspect[]
+  systemVars: VarInInspect[]
+  nodesWithInspectVars: NodeWithVar[]
+}
+
+const {
+  mockDeleteAllInspectorVars,
+  mockEmit,
+} = vi.hoisted(() => ({
+  mockDeleteAllInspectorVars: vi.fn(),
+  mockEmit: vi.fn(),
+}))
+
+let inspectVarsState: InspectVarsState
+
+vi.mock('../../hooks/use-inspect-vars-crud', () => ({
+  default: () => ({
+    ...inspectVarsState,
+    deleteAllInspectorVars: mockDeleteAllInspectorVars,
+  }),
+}))
+
+vi.mock('@/context/event-emitter', () => ({
+  useEventEmitterContextContext: () => ({
+    eventEmitter: {
+      emit: mockEmit,
+    },
+  }),
+}))
+
+const createVariable = (overrides: Partial<VarInInspect> = {}): VarInInspect => ({
+  id: 'var-1',
+  type: VarInInspectType.node,
+  name: 'result',
+  description: '',
+  selector: ['node-1', 'result'],
+  value_type: VarType.string,
+  value: 'cached',
+  edited: false,
+  visible: true,
+  is_truncated: false,
+  full_content: {
+    size_bytes: 0,
+    download_url: '',
+  },
+  ...overrides,
+})
+
+const renderTrigger = ({
+  nodes = [createNode()],
+  initialStoreState = {},
+}: {
+  nodes?: Array<ReturnType<typeof createNode>>
+  initialStoreState?: Record<string, unknown>
+} = {}) => {
+  return renderWorkflowFlowComponent(<VariableInspectTrigger />, { nodes, edges: [], initialStoreState })
+}
+
+describe('VariableInspectTrigger', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    inspectVarsState = {
+      conversationVars: [],
+      systemVars: [],
+      nodesWithInspectVars: [],
+    }
+  })
+
+  it('should stay hidden when the variable-inspect panel is already open', () => {
+    renderTrigger({
+      initialStoreState: {
+        showVariableInspectPanel: true,
+      },
+    })
+
+    expect(screen.queryByText('workflow.debug.variableInspect.trigger.normal')).not.toBeInTheDocument()
+  })
+
+  it('should open the panel from the normal trigger state', () => {
+    const { store } = renderTrigger()
+
+    fireEvent.click(screen.getByText('workflow.debug.variableInspect.trigger.normal'))
+
+    expect(store.getState().showVariableInspectPanel).toBe(true)
+  })
+
+  it('should block opening while the workflow is read only', () => {
+    const { store } = renderTrigger({
+      initialStoreState: {
+        isRestoring: true,
+      },
+    })
+
+    fireEvent.click(screen.getByText('workflow.debug.variableInspect.trigger.normal'))
+
+    expect(store.getState().showVariableInspectPanel).toBe(false)
+  })
+
+  it('should clear cached variables and reset the focused node', () => {
+    inspectVarsState = {
+      conversationVars: [createVariable({
+        id: 'conversation-var',
+        type: VarInInspectType.conversation,
+      })],
+      systemVars: [],
+      nodesWithInspectVars: [],
+    }
+
+    const { store } = renderTrigger({
+      initialStoreState: {
+        currentFocusNodeId: 'node-2',
+      },
+    })
+
+    fireEvent.click(screen.getByText('workflow.debug.variableInspect.trigger.clear'))
+
+    expect(screen.getByText('workflow.debug.variableInspect.trigger.cached')).toBeInTheDocument()
+    expect(mockDeleteAllInspectorVars).toHaveBeenCalledTimes(1)
+    expect(store.getState().currentFocusNodeId).toBe('')
+  })
+
+  it('should show the running state and open the panel while running', () => {
+    const { store } = renderTrigger({
+      nodes: [createNode({
+        data: {
+          type: BlockEnum.Code,
+          title: 'Code',
+          desc: '',
+          _singleRunningStatus: NodeRunningStatus.Running,
+        },
+      })],
+      initialStoreState: {
+        workflowRunningData: baseRunningData({
+          result: { status: WorkflowRunningStatus.Running },
+        }),
+      },
+    })
+
+    fireEvent.click(screen.getByText('workflow.debug.variableInspect.trigger.running'))
+
+    expect(screen.queryByText('workflow.debug.variableInspect.trigger.clear')).not.toBeInTheDocument()
+    expect(store.getState().showVariableInspectPanel).toBe(true)
+  })
+})
diff --git a/web/app/components/workflow/workflow-preview/__tests__/index.spec.tsx b/web/app/components/workflow/workflow-preview/__tests__/index.spec.tsx
new file mode 100644
index 0000000000..54a7969049
--- /dev/null
+++ b/web/app/components/workflow/workflow-preview/__tests__/index.spec.tsx
@@ -0,0 +1,47 @@
+import { render, waitFor } from '@testing-library/react'
+import WorkflowPreview from '../index'
+
+const defaultViewport = {
+  x: 0,
+  y: 0,
+  zoom: 1,
+}
+
+describe('WorkflowPreview', () => {
+  it('should render the preview container with the default left minimap placement', async () => {
+    const { container } = render(
+      <div style={{ width: 800, height: 600 }}>
+        <WorkflowPreview
+          nodes={[]}
+          edges={[]}
+          viewport={defaultViewport}
+          className="preview-shell"
+        />
+      </div>,
+    )
+
+    await waitFor(() => expect(container.querySelector('.react-flow__minimap')).toBeInTheDocument())
+
+    expect(container.querySelector('#workflow-container')).toHaveClass('preview-shell')
+    expect(container.querySelector('.react-flow__background')).toBeInTheDocument()
+    expect(container.querySelector('.react-flow__minimap')).toHaveClass('!left-4')
+  })
+
+  it('should move the minimap to the right when requested', async () => {
+    const { container } = render(
+      <div style={{ width: 800, height: 600 }}>
+        <WorkflowPreview
+          nodes={[]}
+          edges={[]}
+          viewport={defaultViewport}
+          miniMapToRight
+        />
+      </div>,
+    )
+
+    await waitFor(() => expect(container.querySelector('.react-flow__minimap')).toBeInTheDocument())
+
+    expect(container.querySelector('.react-flow__minimap')).toHaveClass('!right-4')
+    expect(container.querySelector('.react-flow__minimap')).not.toHaveClass('!left-4')
+  })
+})
diff --git a/web/app/components/workflow/workflow-preview/components/__tests__/error-handle-on-node.spec.tsx b/web/app/components/workflow/workflow-preview/components/__tests__/error-handle-on-node.spec.tsx
index b4e06676cd..83e964c864 100644
--- a/web/app/components/workflow/workflow-preview/components/__tests__/error-handle-on-node.spec.tsx
+++ b/web/app/components/workflow/workflow-preview/components/__tests__/error-handle-on-node.spec.tsx
@@ -1,7 +1,8 @@
 import type { NodeProps } from 'reactflow'
 import type { CommonNodeType } from '@/app/components/workflow/types'
-import { render, screen, waitFor } from '@testing-library/react'
-import ReactFlow, { ReactFlowProvider } from 'reactflow'
+import { screen, waitFor } from '@testing-library/react'
+import { createNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
 import { ErrorHandleTypeEnum } from '@/app/components/workflow/nodes/_base/components/error-handle/types'
 import { BlockEnum, NodeRunningStatus } from '@/app/components/workflow/types'
 import ErrorHandleOnNode from '../error-handle-on-node'
@@ -19,27 +20,18 @@ const ErrorNode = ({ id, data }: NodeProps<CommonNodeType>) => (
   </div>
 )
 
-const renderErrorNode = (data: CommonNodeType) => {
-  return render(
-    <div style={{ width: 800, height: 600 }}>
-      <ReactFlowProvider>
-        <ReactFlow
-          fitView
-          edges={[]}
-          nodes={[
-            {
-              id: 'node-1',
-              type: 'errorNode',
-              position: { x: 0, y: 0 },
-              data,
-            },
-          ]}
-          nodeTypes={{ errorNode: ErrorNode }}
-        />
-      </ReactFlowProvider>
-    </div>,
-  )
-}
+const renderErrorNode = (data: CommonNodeType) =>
+  renderWorkflowFlowComponent(<div />, {
+    nodes: [createNode({
+      id: 'node-1',
+      type: 'errorNode',
+      data,
+    })],
+    edges: [],
+    reactFlowProps: {
+      nodeTypes: { errorNode: ErrorNode },
+    },
+  })
 
 describe('ErrorHandleOnNode', () => {
   // Empty and default-value states.
diff --git a/web/app/components/workflow/workflow-preview/components/__tests__/node-handle.spec.tsx b/web/app/components/workflow/workflow-preview/components/__tests__/node-handle.spec.tsx
index a354ee9afb..a783523929 100644
--- a/web/app/components/workflow/workflow-preview/components/__tests__/node-handle.spec.tsx
+++ b/web/app/components/workflow/workflow-preview/components/__tests__/node-handle.spec.tsx
@@ -1,7 +1,8 @@
 import type { NodeProps } from 'reactflow'
 import type { CommonNodeType } from '@/app/components/workflow/types'
-import { render, waitFor } from '@testing-library/react'
-import ReactFlow, { ReactFlowProvider } from 'reactflow'
+import { waitFor } from '@testing-library/react'
+import { createNode } from '@/app/components/workflow/__tests__/fixtures'
+import { renderWorkflowFlowComponent } from '@/app/components/workflow/__tests__/workflow-test-env'
 import { BlockEnum } from '@/app/components/workflow/types'
 import { NodeSourceHandle, NodeTargetHandle } from '../node-handle'
 
@@ -34,30 +35,21 @@ const SourceHandleNode = ({ id, data }: NodeProps<CommonNodeType>) => (
   </div>
 )
 
-const renderFlowNode = (type: 'targetNode' | 'sourceNode', data: CommonNodeType) => {
-  return render(
-    <div style={{ width: 800, height: 600 }}>
-      <ReactFlowProvider>
-        <ReactFlow
-          fitView
-          edges={[]}
-          nodes={[
-            {
-              id: 'node-1',
-              type,
-              position: { x: 0, y: 0 },
-              data,
-            },
-          ]}
-          nodeTypes={{
-            targetNode: TargetHandleNode,
-            sourceNode: SourceHandleNode,
-          }}
-        />
-      </ReactFlowProvider>
-    </div>,
-  )
-}
+const renderFlowNode = (type: 'targetNode' | 'sourceNode', data: CommonNodeType) =>
+  renderWorkflowFlowComponent(<div />, {
+    nodes: [createNode({
+      id: 'node-1',
+      type,
+      data,
+    })],
+    edges: [],
+    reactFlowProps: {
+      nodeTypes: {
+        targetNode: TargetHandleNode,
+        sourceNode: SourceHandleNode,
+      },
+    },
+  })
 
 describe('node-handle', () => {
   // Target handle states and visibility rules.
@@ -74,36 +66,28 @@ describe('node-handle', () => {
     })
 
     it('should merge custom classes and hide start-like nodes completely', async () => {
-      const { container } = render(
-        <div style={{ width: 800, height: 600 }}>
-          <ReactFlowProvider>
-            <ReactFlow
-              fitView
-              edges={[]}
-              nodes={[
-                {
-                  id: 'node-2',
-                  type: 'targetNode',
-                  position: { x: 0, y: 0 },
-                  data: createNodeData({ type: BlockEnum.Start }),
-                },
-              ]}
-              nodeTypes={{
-                targetNode: ({ id, data }: NodeProps<CommonNodeType>) => (
-                  <div>
-                    <NodeTargetHandle
-                      id={id}
-                      data={data}
-                      handleId="target-2"
-                      handleClassName="custom-target"
-                    />
-                  </div>
-                ),
-              }}
-            />
-          </ReactFlowProvider>
-        </div>,
-      )
+      const { container } = renderWorkflowFlowComponent(<div />, {
+        nodes: [createNode({
+          id: 'node-2',
+          type: 'targetNode',
+          data: createNodeData({ type: BlockEnum.Start }),
+        })],
+        edges: [],
+        reactFlowProps: {
+          nodeTypes: {
+            targetNode: ({ id, data }: NodeProps<CommonNodeType>) => (
+              <div>
+                <NodeTargetHandle
+                  id={id}
+                  data={data}
+                  handleId="target-2"
+                  handleClassName="custom-target"
+                />
+              </div>
+            ),
+          },
+        },
+      })
 
       await waitFor(() => expect(container.querySelector('.custom-target')).toBeInTheDocument())
 
diff --git a/web/eslint-suppressions.json b/web/eslint-suppressions.json
index 218ff71721..681e430f55 100644
--- a/web/eslint-suppressions.json
+++ b/web/eslint-suppressions.json
@@ -8752,11 +8752,6 @@
       "count": 1
     }
   },
-  "app/components/workflow/panel/version-history-panel/index.spec.tsx": {
-    "ts/no-explicit-any": {
-      "count": 2
-    }
-  },
   "app/components/workflow/panel/version-history-panel/index.tsx": {
     "tailwindcss/enforce-consistent-class-order": {
       "count": 2
@@ -8921,11 +8916,6 @@
       "count": 2
     }
   },
-  "app/components/workflow/run/utils/format-log/agent/index.spec.ts": {
-    "ts/no-explicit-any": {
-      "count": 3
-    }
-  },
   "app/components/workflow/run/utils/format-log/agent/index.ts": {
     "ts/no-explicit-any": {
       "count": 11
@@ -8941,21 +8931,11 @@
       "count": 2
     }
   },
-  "app/components/workflow/run/utils/format-log/iteration/index.spec.ts": {
-    "ts/no-explicit-any": {
-      "count": 3
-    }
-  },
   "app/components/workflow/run/utils/format-log/iteration/index.ts": {
     "ts/no-explicit-any": {
       "count": 1
     }
   },
-  "app/components/workflow/run/utils/format-log/loop/index.spec.ts": {
-    "ts/no-explicit-any": {
-      "count": 1
-    }
-  },
   "app/components/workflow/run/utils/format-log/loop/index.ts": {
     "ts/no-explicit-any": {
       "count": 1
@@ -8969,11 +8949,6 @@
       "count": 2
     }
   },
-  "app/components/workflow/run/utils/format-log/retry/index.spec.ts": {
-    "ts/no-explicit-any": {
-      "count": 1
-    }
-  },
   "app/components/workflow/selection-contextmenu.tsx": {
     "tailwindcss/enforce-consistent-class-order": {
       "count": 2
diff --git a/web/utils/semver.ts b/web/utils/semver.ts
index a22d219947..86ed2b7224 100644
--- a/web/utils/semver.ts
+++ b/web/utils/semver.ts
@@ -1,19 +1,21 @@
 import { compare, greaterOrEqual, lessThan, parse } from 'std-semver'
 
+const parseVersion = (version: string) => parse(version)
+
 export const getLatestVersion = (versionList: string[]) => {
   return [...versionList].sort((versionA, versionB) => {
-    return compare(parse(versionB), parse(versionA))
+    return compare(parseVersion(versionB), parseVersion(versionA))
   })[0]
 }
 
 export const compareVersion = (v1: string, v2: string) => {
-  return compare(parse(v1), parse(v2))
+  return compare(parseVersion(v1), parseVersion(v2))
 }
 
 export const isEqualOrLaterThanVersion = (baseVersion: string, targetVersion: string) => {
-  return greaterOrEqual(parse(baseVersion), parse(targetVersion))
+  return greaterOrEqual(parseVersion(baseVersion), parseVersion(targetVersion))
 }
 
 export const isEarlierThanVersion = (baseVersion: string, targetVersion: string) => {
-  return lessThan(parse(baseVersion), parse(targetVersion))
+  return lessThan(parseVersion(baseVersion), parseVersion(targetVersion))
 }