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deepseek-harness/packages/client/ui-primitives/tests/markdown.spec.tsx
T

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8.9 KiB
TypeScript

// @vitest-environment jsdom
import { cleanup, fireEvent, render, screen } from '@testing-library/react'
import { afterEach, describe, expect, it } from 'vitest'
import { JsonBlock, MarkdownText, MessageText } from '@deepseek-ai/dsh-client-ui-primitives'
afterEach(cleanup)
describe('MessageText', () => {
it('renders the text verbatim', () => {
const { container } = render(<MessageText text={'# line1\n`line2`'} />)
expect(container.textContent).toBe('# line1\n`line2`')
expect(container.querySelector('h1')).toBeNull()
})
})
describe('MarkdownText', () => {
it('renders CommonMark and GFM elements as semantic DOM', () => {
const markdown = [
'# Heading',
'',
'Paragraph with **strong**, *emphasis*, ~~deleted~~, `inline`, and [safe](https://example.com). ',
'Hard break.',
'',
'> Quote',
'',
'- parent',
' - child',
'',
'1. first',
'2. second',
'',
'- [x] done',
'- [ ] pending',
'',
'| Name | Value |',
'| --- | --- |',
'| alpha | beta |',
'',
'---',
'',
'```ts',
'const answer = 42',
'```',
'',
'<https://deepseek.com>',
].join('\n')
const { container } = render(<MarkdownText text={markdown} />)
expect(screen.getByRole('heading', { level: 1, name: 'Heading' })).toBeTruthy()
expect(container.querySelector('strong')?.textContent).toBe('strong')
expect(container.querySelector('em')?.textContent).toBe('emphasis')
expect(container.querySelector('del')?.textContent).toBe('deleted')
expect(container.querySelector('blockquote')?.textContent?.trim()).toBe('Quote')
expect(container.querySelectorAll('ul')).toHaveLength(3)
expect(container.querySelector('ol')).not.toBeNull()
expect(container.querySelectorAll('input[type="checkbox"]')).toHaveLength(2)
expect(container.querySelector('table')?.textContent).toContain('alphabeta')
expect(container.querySelector('hr')).not.toBeNull()
expect(container.querySelector('pre code')?.textContent).toContain('const answer = 42')
// The ts fence routed through the shared CodeBlock: shiki token spans + banner.
expect(container.querySelector('pre.shiki')).not.toBeNull()
expect(screen.getByText('ts')).toBeTruthy()
expect(screen.getByRole('button', { name: '复制' })).toBeTruthy()
expect(container.querySelector('br')).not.toBeNull()
expect(screen.getByRole('link', { name: 'safe' }).getAttribute('target')).toBe('_blank')
expect(screen.getByRole('link', { name: 'https://deepseek.com' })).toBeTruthy()
})
it('a fence labeled with an inherited object key renders plain, never crashing shiki', () => {
for (const label of ['constructor', '__proto__', 'toString', 'hasOwnProperty']) {
const { container, unmount } = render(<MarkdownText text={'```' + label + '\ncode body\n```'} />)
expect(container.querySelector('pre.shiki')).toBeNull()
expect(container.querySelector('pre code')?.textContent).toContain('code body')
unmount()
}
})
it('an empty fence keeps the stock pre; a language-less fence renders the plain CodeBlock arm', () => {
const empty = render(<MarkdownText text={'```\n```'} />)
expect(empty.container.querySelector('pre')?.outerHTML).toBe('<pre><code></code></pre>')
const plain = render(<MarkdownText text={'```\nno language here\n```'} />)
expect(plain.container.querySelector('pre.shiki')).toBeNull()
expect(plain.container.querySelector('pre code')?.textContent).toContain('no language here')
})
it('streaming renders fences plain; the finalize swap highlights them', () => {
const fence = '```ts\nconst answer = 42\n```'
const live = render(<MarkdownText text={fence} streaming />)
expect(live.container.querySelector('pre.shiki')).toBeNull()
expect(live.container.querySelector('pre code')?.textContent).toContain('const answer = 42')
live.unmount()
const done = render(<MarkdownText text={fence} />)
expect(done.container.querySelector('pre.shiki')).not.toBeNull()
})
it('forwards localized labels to fenced code blocks', () => {
render(<MarkdownText text={'```ts\nconst answer = 42\n```'} codeLabels={{ copyLabel: 'Copy code', copiedLabel: 'Copied' }} />)
expect(screen.getByRole('button', { name: 'Copy code' })).toBeTruthy()
})
it('neutralizes raw HTML, unsafe or relative links, and remote images', () => {
const markdown = [
'<script>globalThis.compromised = true</script>',
'<img src="x" onerror="globalThis.compromised = true">',
'[script](javascript:alert(1)) [relative](/settings)',
'[mail](mailto:dev@example.com) [web](http://example.com) [upper](HTTPS://example.com)',
'![remote diagram](https://example.com/private.png)',
].join('\n\n')
const { container } = render(<MarkdownText text={markdown} />)
expect(container.querySelector('script')).toBeNull()
expect(container.querySelector('img')).toBeNull()
const neutralized = [...container.querySelectorAll('p')]
.find(paragraph => paragraph.textContent === 'script relative')
expect(neutralized?.querySelector('a')).toBeNull()
expect(screen.getByRole('link', { name: 'mail' }).getAttribute('target')).toBeNull()
expect(screen.getByRole('link', { name: 'web' }).getAttribute('rel')).toBe('noopener noreferrer')
expect(screen.getByRole('link', { name: 'upper' }).getAttribute('target')).toBe('_blank')
expect(screen.getByText('remote diagram')).toBeTruthy()
})
it('keeps incomplete streaming Markdown renderable', () => {
const { container } = render(<MarkdownText text={'## Streaming\n\n- first\n- **unfinished'} />)
expect(screen.getByRole('heading', { level: 2, name: 'Streaming' })).toBeTruthy()
expect(container.querySelectorAll('li')).toHaveLength(2)
expect(screen.getByText('**unfinished')).toBeTruthy()
})
it('renders inline and display TeX through KaTeX without enabling trusted commands', () => {
const source = [
'Einstein wrote $E = mc^2$.',
'',
'$$',
'\\frac{\\partial \\mathbf{u}}{\\partial t} + (\\mathbf{u} \\cdot \\nabla)\\mathbf{u} = -\\frac{1}{\\rho}\\nabla p',
'$$',
'',
'$\\href{javascript:alert(1)}{unsafe}$',
].join('\n')
const { container } = render(<MarkdownText text={source} />)
expect(container.querySelectorAll('.katex')).toHaveLength(3)
expect(container.querySelectorAll('.katex-display')).toHaveLength(1)
expect(container.querySelector('.katex-display annotation')?.textContent).toContain('\\frac{\\partial \\mathbf{u}}')
expect(container.querySelector('a')).toBeNull()
})
it('defers TeX rendering while streaming so incomplete formulas never flash KaTeX errors', () => {
const partial = '$$\n\\frac{\\partial \\mathbf{u}}{\\partial'
const complete = '$$\n\\frac{\\partial \\mathbf{u}}{\\partial t}\n$$'
const live = render(<MarkdownText text={partial} streaming />)
expect(live.container.querySelector('.katex')).toBeNull()
expect(live.container.querySelector('.katex-error')).toBeNull()
expect(live.container.textContent).toContain('\\frac{\\partial \\mathbf{u}}{\\partial')
live.rerender(<MarkdownText text={complete} />)
expect(live.container.querySelectorAll('.katex')).toHaveLength(1)
expect(live.container.querySelectorAll('.katex-display')).toHaveLength(1)
expect(live.container.querySelector('.katex-error')).toBeNull()
})
})
describe('JsonBlock', () => {
it('collapsed by default; toggle reveals pretty-printed payload', () => {
render(<JsonBlock label="args" payload={{ a: 1 }} />)
expect(screen.queryByText(/"a": 1/)).toBeNull()
fireEvent.click(screen.getByRole('button', { name: /args/ }))
expect(screen.getByText(/"a": 1/)).toBeDefined()
fireEvent.click(screen.getByRole('button', { name: /args/ }))
expect(screen.queryByText(/"a": 1/)).toBeNull()
})
it('defaultOpen renders the body immediately', () => {
const { container } = render(<JsonBlock label="args" payload={[1, 2]} defaultOpen />)
expect(container.querySelector('pre')?.textContent).toContain('1')
})
it('stringifies undefined payloads via String()', () => {
const { container } = render(<JsonBlock label="x" payload={undefined} defaultOpen />)
expect(container.querySelector('pre')?.textContent).toBe('undefined')
})
it('falls back to String() for circular payloads', () => {
const circular: { self?: unknown } = {}
circular.self = circular
const { container } = render(<JsonBlock label="x" payload={circular} defaultOpen />)
expect(container.querySelector('pre')?.textContent).toBe('[object Object]')
})
it('truncates beyond the size cap with a suffix note', () => {
const big = 'x'.repeat(30_000)
const { container } = render(<JsonBlock label="x" payload={big} defaultOpen />)
const body = container.querySelector('pre')!.textContent
expect(body.length).toBeLessThan(30_000)
expect(body).toContain('截断')
})
})