浅念
c99bbbb29e
- mapItem 纯函数：WxrItem → MappedResult 三分支（row/unsupported/error）， DEFAULT_TYPE_ROUTES/STATUS_MAP/META_KEYS 三冻结表导出 - Plan 1 移交落实：status 值域表驱动（未知→unknown+issue）；property 断言 （isUniversalRow+refs 形状非空）测试钉死 - Task 3 审查移交：postId null→error（不产 row 不猜）；-7 原样；-0 归一 '0' - taxonomyRefs 锚点=category @nicename（=term slug，Task 8 实数据核对后冻结） - 悬空 gallery 203/204 原样保留；wppop 解析失败→extras.phpRaw+issue（不崩不丢） - Task 2 审查移交补测四例：d: 键拒绝/NUL 往返/s:1:"0"→Map/1MB<50ms 烟雾 - tsconfig.build.json：src 首次引 @sf/contracts 后 build 经 contracts dist 声明解析（rootDir TS6059；typecheck/vitest/tsx 仍 src 直连，ADR-016 归口） - 142→173 测试全绿；typecheck/lint 绿 Co-Authored-By: Claude Code <noreply@anthropic.com>
351 lines
14 KiB
TypeScript
351 lines
14 KiB
TypeScript
import { createReadStream } from 'node:fs'
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import { fileURLToPath } from 'node:url'
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import { describe, expect, it } from 'vitest'
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import { isUniversalRow, type UniversalRow } from '@sf/contracts'
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import { parseWxrStream, type WxrItem } from '../src/parse/wxr-stream.js'
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import {
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DEFAULT_TYPE_ROUTES,
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mapItem,
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META_KEYS,
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STATUS_MAP,
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UNKNOWN_STATUS,
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type MapConfig,
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type MappedResult,
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} from '../src/map/item-to-row.js'
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// mini.xml（Plan 1 夹具）：5 item（post 101 / product 111 / page 121 / attachment 201,202）
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// + 2 term；product 的图库 203/204 有意悬空（夹具中不存在对应 attachment item）。
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const FIXTURE = fileURLToPath(new URL('../../../tests/fixtures/wxr/mini.xml', import.meta.url))
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const CONFIG: MapConfig = { locale: 'zh-CN' }
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/** 经 parseWxrStream 喂 mini.xml 取真实 item 事件（端到端：解析产物即映射输入） */
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async function miniItems(): Promise<WxrItem[]> {
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const out: WxrItem[] = []
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for await (const ev of parseWxrStream(createReadStream(FIXTURE))) {
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if (ev.kind === 'item') out.push(ev.item)
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}
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return out
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}
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function byPostId(items: WxrItem[], postId: number): WxrItem {
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const found = items.find((it) => it.postId === postId)
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if (found === undefined) throw new Error(`mini.xml 中找不到 post ${postId}`)
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return found
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}
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/** 手构等值 WxrItem（任务说明允许：wxr-stream 完整字段形状，缺省为最平凡合法值） */
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function makeItem(overrides: Partial<WxrItem> = {}): WxrItem {
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return {
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rawLocation: 'wxr://item/handmade',
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postId: 1,
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postType: 'post',
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status: 'publish',
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postName: 'handmade',
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link: 'https://example.com/handmade.html',
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title: 'Handmade',
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contentEncoded: '<p>handmade body</p>',
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excerptEncoded: '',
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postDate: '2026-01-01 00:00:00',
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postModified: '2026-01-02 00:00:00',
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attachmentUrl: '',
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creator: 'admin',
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metas: [],
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categories: [],
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...overrides,
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}
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}
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/** 断言结果为 row 并取出（ narrowing 辅助；非 row 即失败） */
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function rowOf(result: MappedResult): { row: UniversalRow; issues: string[] } {
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if (result.kind !== 'row') throw new Error(`期望 kind:'row'，实际 ${result.kind}`)
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return { row: result.row, issues: result.issues }
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}
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/** Plan 1 移交 property 断言：产出 row 的通用不变量（守卫 + 非空 + refs 形状） */
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function expectRowInvariants(row: UniversalRow): void {
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expect(isUniversalRow(row)).toBe(true)
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expect(row.sourceType).not.toBe('')
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expect(row.sourceId).not.toBe('')
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expect(row.rawLocation).not.toBe('')
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for (const ref of row.taxonomyRefs) {
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expect(ref.taxonomy).not.toBe('')
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expect(ref.sourceTermId).not.toBe('')
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}
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for (const ref of row.attachmentRefs) {
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expect(ref.role).not.toBe('')
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// 本映射器产出的 ref 一律以 sourceId 锚定（不产 sourceUrl 型 ref）
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expect(typeof ref.sourceId === 'string' && ref.sourceId !== '').toBe(true)
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}
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}
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describe('mapItem：mini.xml 端到端（parseWxrStream → mapItem）', () => {
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it('post(101)：全字段映射（路由/status/locale/slug/seo/taxonomyRefs/featured/knownFields/bodyHtml 原文）', async () => {
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const { row, issues } = rowOf(mapItem(byPostId(await miniItems(), 101), CONFIG))
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expect(issues).toStrictEqual([])
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expect(row).toMatchObject({
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sourceType: 'wp:post',
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sourceId: '101',
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status: 'publish',
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locale: 'zh-CN',
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sourceUrl: 'https://fixture.example/news/fixture-news-a.html',
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slug: 'fixture-news-a',
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// 原文透传（清洗是 Task 5 的职责）
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bodyHtml:
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'<p>Body with <a href="/products/fixture-product/">link</a> and <img src="https://fixture.example/wp-content/uploads/2026/10/fixture-a.png"/></p>',
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rawLocation: 'wxr://item/1',
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})
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// 设计决定（JSDoc 钉死）：sourceTermId 暂以 category @nicename 为锚
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// （= 真实 WP 的 term slug；mini.xml 中 term 31 的 slug 恰为 'company'，Task 8 实数据核对后冻结）
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expect(row.taxonomyRefs).toStrictEqual([{ taxonomy: 'category', sourceTermId: 'company' }])
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expect(row.attachmentRefs).toStrictEqual([{ role: 'featured', sourceId: '201' }])
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expect(row.seo).toStrictEqual({
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title: 'Fixture SEO Title A',
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description: 'Fixture SEO description A.',
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})
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// 阶段 3 提升纪律：title/日期暂留 knownFields（键名冻结为 title/postDate/postModified）
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expect(row.knownFields).toStrictEqual({
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title: 'Fixture News A',
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postDate: '2026-10-05 09:00:00',
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postModified: '2026-10-06 10:00:00',
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excerpt: 'Fixture excerpt A',
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creator: 'editor',
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})
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// 101 的 3 条 meta 全部被分流（thumbnail/yoast×2）——extras 无未识别残余
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expect(row.extras).toStrictEqual({})
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expectRowInvariants(row)
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})
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it('product(111)：featured 202 + 悬空 gallery 203/204 原样保留（歧义不猜）；extras.wppop_sections 为解析产物', async () => {
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const { row, issues } = rowOf(mapItem(byPostId(await miniItems(), 111), CONFIG))
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expect(issues).toStrictEqual([])
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expect(row.sourceType).toBe('wp:product')
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expect(row.sourceId).toBe('111')
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// 悬空 203/204 原样保留：是否存在对应媒体是入库阶段以全量数据才能裁决的事
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expect(row.attachmentRefs).toStrictEqual([
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{ role: 'featured', sourceId: '202' },
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{ role: 'gallery', sourceId: '203' },
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{ role: 'gallery', sourceId: '204' },
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])
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// Map 陷阱防线：必须是 phpValueToJson 后的普通对象（可 JSON.stringify，非 Map）
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expect(row.extras.wppop_sections).not.toBeInstanceOf(Map)
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expect(row.extras.wppop_sections).toStrictEqual([{ title: 'SpecsTab', content: '<p>Tab</p>' }])
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expect(JSON.stringify(row.extras.wppop_sections)).toBe('[{"title":"SpecsTab","content":"<p>Tab</p>"}]')
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expectRowInvariants(row)
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})
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it('page(121)：sourceType wp:page，seo/refs 为空', async () => {
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const { row } = rowOf(mapItem(byPostId(await miniItems(), 121), CONFIG))
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expect(row.sourceType).toBe('wp:page')
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expect(row.sourceId).toBe('121')
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expect(row.taxonomyRefs).toStrictEqual([])
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expect(row.attachmentRefs).toStrictEqual([])
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expect(row.seo).toStrictEqual({})
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expectRowInvariants(row)
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})
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it('attachment(201)：sourceType wp:attachment、status inherit 原样、knownFields.attachmentUrl', async () => {
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const { row, issues } = rowOf(mapItem(byPostId(await miniItems(), 201), CONFIG))
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expect(issues).toStrictEqual([])
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expect(row.sourceType).toBe('wp:attachment')
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expect(row.sourceId).toBe('201')
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expect(row.status).toBe('inherit')
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expect(row.knownFields.attachmentUrl).toBe(
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'https://fixture.example/wp-content/uploads/2026/10/fixture-a.png',
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)
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expectRowInvariants(row)
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})
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it('property 断言（Plan 1 移交）：mini.xml 全部 5 item 均产合法 row（含 attachment 202）', async () => {
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const items = await miniItems()
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expect(items).toHaveLength(5)
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for (const item of items) {
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const { row } = rowOf(mapItem(item, CONFIG))
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expectRowInvariants(row)
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}
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})
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})
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describe('mapItem：unsupported 分流（不产 row）', () => {
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it.each(['nav_menu_item', 'wpcf7_contact_form', 'elementor_library', 'wp_navigation'])(
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'post_type %s → {kind:unsupported, sourceType:wp:%s}，不产 row',
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(postType) => {
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const result = mapItem(makeItem({ postType }), CONFIG)
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expect(result).toStrictEqual({
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kind: 'unsupported',
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sourceType: `wp:${postType}`,
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reason: 'post_type 未配置映射',
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rawLocation: 'wxr://item/handmade',
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})
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expect('row' in result).toBe(false)
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},
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)
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it('typeRoutes 自定义：整体替换语义（post 走自定义路由；product 无路由 → unsupported）', () => {
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const custom: MapConfig = { locale: 'zh-CN', typeRoutes: { post: 'site:article' } }
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const post = rowOf(mapItem(makeItem({ postType: 'post' }), custom))
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expect(post.row.sourceType).toBe('site:article')
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expect(mapItem(makeItem({ postType: 'product' }), custom).kind).toBe('unsupported')
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})
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})
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describe('mapItem：status 值域映射（Plan 1 移交，表驱动）', () => {
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it.each(['publish', 'draft', 'future', 'pending', 'private', 'trash', 'inherit'])(
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'已知 status %s → 原样',
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(status) => {
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const { row, issues } = rowOf(mapItem(makeItem({ status }), CONFIG))
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expect(row.status).toBe(status)
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expect(issues).toStrictEqual([])
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},
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)
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it("未知 status（'weird'/空串）→ 'unknown' + issue（不猜不丢）", () => {
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const weird = rowOf(mapItem(makeItem({ status: 'weird' }), CONFIG))
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expect(weird.row.status).toBe('unknown')
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expect(weird.issues).toStrictEqual([`status 值未识别："weird"，已映射为 'unknown'`])
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const empty = rowOf(mapItem(makeItem({ status: '' }), CONFIG))
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expect(empty.row.status).toBe('unknown')
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expect(empty.issues).toHaveLength(1)
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})
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it('STATUS_MAP/DEFAULT_TYPE_ROUTES/META_KEYS 冻结且值域钉死', () => {
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expect(Object.isFrozen(STATUS_MAP)).toBe(true)
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expect(Object.isFrozen(DEFAULT_TYPE_ROUTES)).toBe(true)
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expect(Object.isFrozen(META_KEYS)).toBe(true)
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expect(STATUS_MAP).toStrictEqual({
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publish: 'publish',
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draft: 'draft',
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future: 'future',
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pending: 'pending',
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private: 'private',
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trash: 'trash',
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inherit: 'inherit',
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})
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expect(UNKNOWN_STATUS).toBe('unknown')
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expect(DEFAULT_TYPE_ROUTES).toStrictEqual({
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post: 'wp:post',
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page: 'wp:page',
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product: 'wp:product',
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attachment: 'wp:attachment',
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})
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expect(META_KEYS).toStrictEqual({
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thumbnail: '_thumbnail_id',
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gallery: '_product_image_gallery',
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seoTitle: '_yoast_wpseo_title',
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seoDescription: '_yoast_wpseo_metadesc',
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wppopSections: 'wppop_sections',
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})
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})
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})
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describe('mapItem：postId 异常策略（Task 3 审查移交）', () => {
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it('postId null → {kind:error}（不产 row 不猜）', () => {
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expect(mapItem(makeItem({ postId: null }), CONFIG)).toStrictEqual({
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kind: 'error',
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issue: 'post_id 缺失或非法',
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rawLocation: 'wxr://item/handmade',
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})
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})
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it("postId -7（wxr-stream 严格解析 '-7' 的产物）→ sourceId '-7' 原样", () => {
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const { row } = rowOf(mapItem(makeItem({ postId: -7 }), CONFIG))
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expect(row.sourceId).toBe('-7')
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})
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it("postId -0 / 0 → sourceId '0'（-0 归一，String(-0)==='0'）", () => {
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const item = makeItem({ postId: -0 })
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expect(Object.is(item.postId, -0)).toBe(true) // 确证喂入的确实是 -0（未被字面量归一）
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expect(rowOf(mapItem(item, CONFIG)).row.sourceId).toBe('0')
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expect(rowOf(mapItem(makeItem({ postId: 0 }), CONFIG)).row.sourceId).toBe('0')
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})
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it('post_id 缺失的 unsupported 类型：data 有效性先行于路由（error 而非 unsupported）', () => {
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const result = mapItem(makeItem({ postId: null, postType: 'nav_menu_item' }), CONFIG)
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expect(result.kind).toBe('error')
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})
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})
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describe('mapItem：meta 分流表', () => {
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it('未识别 meta → extras 原样（字符串键值；同 key 后者覆盖前者）', () => {
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const { row, issues } = rowOf(
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mapItem(
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makeItem({
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metas: [
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{ key: 'custom_a', value: 'va' },
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{ key: '_thumbnail_id', value: '301' },
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{ key: 'custom_a', value: 'va-2' },
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{ key: 'custom_b', value: 'vb' },
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],
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}),
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CONFIG,
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),
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)
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expect(issues).toStrictEqual([])
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expect(row.extras).toStrictEqual({ custom_a: 'va-2', custom_b: 'vb' })
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expect(row.attachmentRefs).toStrictEqual([{ role: 'featured', sourceId: '301' }])
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})
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it('thumbnail/gallery 容忍空白（trim）；空 gallery 值不产 ref；空 thumbnail 记 issue', () => {
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const ok = rowOf(
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mapItem(
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makeItem({
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metas: [
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{ key: '_thumbnail_id', value: ' 401 ' },
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{ key: '_product_image_gallery', value: '402 , 403' },
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],
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}),
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CONFIG,
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),
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)
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expect(ok.row.attachmentRefs).toStrictEqual([
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{ role: 'featured', sourceId: '401' },
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{ role: 'gallery', sourceId: '402' },
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{ role: 'gallery', sourceId: '403' },
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])
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// WooCommerce 语义：空 _product_image_gallery = 无图库（不报 issue）；空 _thumbnail_id 为畸形（记 issue）
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const emptyGallery = rowOf(
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mapItem(makeItem({ metas: [{ key: '_product_image_gallery', value: '' }] }), CONFIG),
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)
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expect(emptyGallery.row.attachmentRefs).toStrictEqual([])
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expect(emptyGallery.issues).toStrictEqual([])
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const emptyThumb = rowOf(
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mapItem(makeItem({ metas: [{ key: '_thumbnail_id', value: ' ' }] }), CONFIG),
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)
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expect(emptyThumb.row.attachmentRefs).toStrictEqual([])
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expect(emptyThumb.issues).toStrictEqual(['meta _thumbnail_id 值为空，featured 引用已跳过'])
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})
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it('wppop 解析失败路径：extras.phpRaw 存原串 + issue（不崩不丢，row 照常产出）', () => {
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const raw = 'a:1:{i:0;s:5:"ab' // 截断串 → PhpParseError
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const { row, issues } = rowOf(
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mapItem(makeItem({ metas: [{ key: 'wppop_sections', value: raw }] }), CONFIG),
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)
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expect(row.extras.phpRaw).toBe(raw)
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expect(row.extras.wppop_sections).toBeUndefined()
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expect(issues).toHaveLength(1)
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expect(issues[0]).toContain('wppop_sections')
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expect(issues[0]).toContain('phpRaw')
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expectRowInvariants(row)
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})
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})
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describe('mapItem：category 引用形状防线', () => {
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it('category 缺 domain 或 nicename → 跳过该 ref 并记 issue（不产空锚点）', () => {
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const { row, issues } = rowOf(
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mapItem(
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makeItem({
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categories: [
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{ domain: 'category', nicename: '', value: 'X' },
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{ domain: '', nicename: 'slug', value: 'Y' },
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{ domain: 'post_tag', nicename: 'tag-a', value: 'TagA' },
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],
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}),
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CONFIG,
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),
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)
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expect(row.taxonomyRefs).toStrictEqual([{ taxonomy: 'post_tag', sourceTermId: 'tag-a' }])
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expect(issues).toHaveLength(2)
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expectRowInvariants(row)
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})
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})
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