add unittests

web/app/components/workflow/comment/cursor.spec.tsx

@@ -0,0 +1,45 @@
+import { render, screen } from '@testing-library/react'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { ControlMode } from '../types'
+import { CommentCursor } from './cursor'
+
+const mockState = {
+  controlMode: ControlMode.Pointer,
+  mousePosition: {
+    elementX: 10,
+    elementY: 20,
+  },
+}
+
+vi.mock('@/app/components/base/icons/src/public/other', () => ({
+  Comment: (props: { className?: string }) => <svg data-testid="comment-icon" {...props} />,
+}))
+
+vi.mock('../store', () => ({
+  useStore: (selector: (state: typeof mockState) => unknown) => selector(mockState),
+}))
+
+describe('CommentCursor', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+  })
+
+  it('renders nothing when not in comment mode', () => {
+    mockState.controlMode = ControlMode.Pointer
+
+    render(<CommentCursor />)
+
+    expect(screen.queryByTestId('comment-icon')).not.toBeInTheDocument()
+  })
+
+  it('renders at current mouse position when in comment mode', () => {
+    mockState.controlMode = ControlMode.Comment
+
+    render(<CommentCursor />)
+
+    const icon = screen.getByTestId('comment-icon')
+    const container = icon.parentElement as HTMLElement
+
+    expect(container).toHaveStyle({ left: '10px', top: '20px' })
+  })
+})