test: improve coverage parameters for some files in base (#33207)

web/app/components/base/markdown/__tests__/index.spec.tsx

@@ -7,10 +7,17 @@ const { mockReactMarkdownWrapper } = vi.hoisted(() => ({
   mockReactMarkdownWrapper: vi.fn(),
 }))
 
+vi.mock('../react-markdown-wrapper', () => ({
+  ReactMarkdownWrapper: () => null,
+}))
+
 vi.mock('next/dynamic', () => ({
-  default: () => (props: { latexContent: string }) => {
-    mockReactMarkdownWrapper(props)
-    return <div data-testid="react-markdown-wrapper">{props.latexContent}</div>
+  default: (loader: () => Promise<unknown>) => {
+    void loader()
+    return (props: { latexContent: string }) => {
+      mockReactMarkdownWrapper(props)
+      return <div data-testid="react-markdown-wrapper">{props.latexContent}</div>
+    }
   },
 }))
 

web/app/components/base/markdown/__tests__/markdown-utils.spec.ts

@@ -30,6 +30,12 @@ describe('preprocessLaTeX', () => {
     expect(out).toContain('$$x^2 + 1$$')
   })
 
+  it('converts multiline \\[ ... \\] blocks into $$ ... $$', () => {
+    const input = 'Block:\n\\[\na+b=c\n\\]'
+    const out = mod.preprocessLaTeX(input)
+    expect(out).toContain('$$\na+b=c\n$$')
+  })
+
   it('converts \\( ... \\) into $$ ... $$', () => {
     const input = 'Inline: \\(a+b\\)'
     const out = mod.preprocessLaTeX(input)
@@ -91,6 +97,14 @@ describe('preprocessThinkTag', () => {
     const endCount = (out.match(/\[ENDTHINKFLAG\]<\/details>/g) || []).length
     expect(endCount).toBe(2)
   })
+
+  it('normalizes repeated think tags to a single details pair', () => {
+    const input = '<think><think>deep</think></think>'
+    const out = mod.preprocessThinkTag(input)
+
+    expect((out.match(/<details data-think=true>/g) || []).length).toBe(1)
+    expect((out.match(/\[ENDTHINKFLAG\]<\/details>/g) || []).length).toBe(1)
+  })
 })
 
 describe('customUrlTransform', () => {