deepseek-harness/scripts/translation-pairing.spec.ts

/** Regression tests for the bilingual corpus scope and structural signature. */

import { describe, expect, it } from 'vitest'
import {
  isTranslationScopeFile,
  parseTranslationMarkdown,
  parseTranslationPairingManifest,
  translationStructureDiff,
  translationStructureSignature,
} from './translation-pairing.ts'

function signature(markdown: string) {
  return translationStructureSignature(parseTranslationMarkdown(markdown), 'counterpart.zh.md')
}

describe('translation pairing manifest', () => {
  it('accepts an exclusions-only manifest', () => {
    expect(parseTranslationPairingManifest(JSON.stringify({
      excluded: ['docs/generated/'],
    }))).toEqual({
      excluded: ['docs/generated/'],
    })
  })

  it.each([
    ['required', ['packages/README.md']],
    ['requiredClasses', ['readme']],
    ['requiredSince', '2026-07-14'],
  ] as const)('rejects obsolete policy field %s instead of accepting an inert requirement', (field, value) => {
    expect(() => parseTranslationPairingManifest(JSON.stringify({
      excluded: [],
      [field]: value,
    }))).toThrow(`unsupported field(s): ${field}; every in-scope document is required`)
  })

  it('rejects a missing or non-string exclusion list', () => {
    expect(() => parseTranslationPairingManifest('{}')).toThrow('excluded must be an array of strings')
    expect(() => parseTranslationPairingManifest(JSON.stringify({
      excluded: [42],
    }))).toThrow('excluded must be an array of strings')
  })
})

describe('translation scope discovery', () => {
  it.each([
    'README.md',
    'apps/cli/README.md',
    'future/subtree/readme.md',
    'packages/example/README.zh.md',
    'native/example/README.i18n.yaml',
    '.agents/notes/proposed/feature.md',
    'docs/guide.md',
    'python/guide.md',
  ])('includes %s', (file) => {
    expect(isTranslationScopeFile(file)).toBe(true)
  })

  it.each([
    'packages/example/guide.md',
    'examples/tutorial.md',
    'website/reference.md',
    'packages/example/README.txt',
    'vendor/example/README.md',
    'packages/example/node_modules/dependency/README.md',
    'packages/example/lib/README.md',
    'coverage/report/README.md',
    'python/sdk-runtime/src/deepseek_harness_runtime/runtime/dsh-jsonrpc-agent-macos-arm64/README.md',
    'python/sdk-runtime/src/deepseek_harness_runtime/runtime/node/README.md',
  ])('excludes non-source or non-README path %s', (file) => {
    expect(isTranslationScopeFile(file)).toBe(false)
  })
})

describe('translation structural signature', () => {
  it('accepts matching list kinds, starts, and item counts', () => {
    const source = signature('3. One\n4. Two\n\n- A\n- B\n')
    const counterpart = signature('3. 一\n4. 二\n\n- 甲\n- 乙\n')
    expect(translationStructureDiff(source, counterpart)).toEqual([])
  })

  it('rejects an altered ordered-list start', () => {
    const source = signature('3. One\n4. Two\n\n- A\n- B\n')
    const counterpart = signature('1. 一\n2. 二\n\n- 甲\n- 乙\n')
    expect(translationStructureDiff(source, counterpart)).toEqual([
      'list (kind, start, item count) #1 diverges between the pair: "ordered:start=3:items=2" vs "ordered:start=1:items=2"',
    ])
  })

  it('rejects a missing list item', () => {
    const source = signature('- A\n- B\n')
    const counterpart = signature('- 甲\n')
    expect(translationStructureDiff(source, counterpart)).toEqual([
      'list (kind, start, item count) #1 diverges between the pair: "bullet:items=2" vs "bullet:items=1"',
    ])
  })

  it('rejects altered table row or column counts', () => {
    const source = signature('| A | B |\n|---|---|\n| 1 | 2 |\n| 3 | 4 |\n')
    const counterpart = signature('| 甲 | 乙 |\n|---|---|\n| 一 | 二 |\n')
    expect(translationStructureDiff(source, counterpart)).toEqual([
      'table (row x column count) #1 diverges between the pair: "3x2" vs "2x2"',
    ])
  })
})