cms-website/themes/pilot-minimal/test/load-data.test.ts

// Task 3 用例 2/4：load-render-data 对六文件夹具的加载形状、缺文件明错、name 兜底、
// 缓存单例、编码 slug 原样贯穿（前置事实 7——不得 decodeURIComponent）。
import { cpSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import { fileURLToPath } from 'node:url'
import { afterEach, describe, expect, it } from 'vitest'
import { loadRenderData, resetRenderDataCache } from '../src/lib/load-render-data.js'

const FIXTURE = fileURLToPath(new URL('./fixtures/render-input', import.meta.url))
const LOADER_SRC = fileURLToPath(new URL('../src/lib/load-render-data.ts', import.meta.url))
const PREV_ENV = process.env.SF_BUILD_INPUT

afterEach(() => {
  resetRenderDataCache()
  if (PREV_ENV === undefined) delete process.env.SF_BUILD_INPUT
  else process.env.SF_BUILD_INPUT = PREV_ENV
})

/** 具夹目录的临时副本（变体测试可随意改写，用后即删） */
function tempCopy(name: string): string {
  const dir = mkdtempSync(join(tmpdir(), `sf-theme-${name}-`))
  cpSync(FIXTURE, dir, { recursive: true })
  return dir
}

describe('load-render-data（渲染数据唯一入口）', () => {
  it('六文件具夹 → 返回形状：site/contents/taxonomies/routes/assets Map/renderManifest', () => {
    const data = loadRenderData(FIXTURE)
    // 占位 name（siteKey 派生）原样贯穿——兜底只对空值生效
    expect(data.site.name).toBe('demo-site')
    expect(data.site.origin).toBe('https://demo.example')
    expect(data.site.locale).toBe('zh-CN')
    expect(data.site.brand).toStrictEqual({})

    expect(data.contents).toHaveLength(3)
    const news = data.contents.find((c) => c.slug === 'fixture-news-a')
    expect(news?.typeKey).toBe('news_article')
    expect(news?.data.bodyHtml).toContain('src="/wp-content/uploads/2026/10/fixture-a.png"')
    expect(news?.media?.featured).toBe('/wp-content/uploads/2026/10/fixture-a.png')

    expect(data.taxonomies[0]).toMatchObject({ key: 'product-category', objectType: 'product' })
    expect(data.taxonomies[0]?.terms[0]?.contentEntryIds).toHaveLength(1)

    const redirect = data.routes.find((r) => r.routeKind === 'redirect')
    expect(redirect).toMatchObject({
      routePath: '/old-path/',
      redirectStatus: 301,
      redirectLocation: '/',
      indexable: false,
    })

    expect(data.assets.size).toBe(1)
    expect(data.assets.get('/wp-content/uploads/2026/10/fixture-a.png')).toMatchObject({
      detectedMimeType: 'image/png',
      byteSize: 1234,
      width: 100,
      height: 80,
      altText: null,
    })

    expect(data.renderManifest.counts).toStrictEqual({ contents: 3, taxonomies: 1, routes: 7, assets: 1 })
    expect(data.renderManifest.renderSnapshotVersion).toBe(1)
  })

  it("site.name 空 → 'Untitled Site'；brand 键缺席 → {}（Task 1 审查移交：缺省容忍）", () => {
    const dir = tempCopy('name')
    try {
      writeFileSync(
        join(dir, 'site.json'),
        JSON.stringify({ name: '', origin: 'https://demo.example', locale: 'zh-CN' }),
      )
      const data = loadRenderData(dir)
      expect(data.site.name).toBe('Untitled Site')
      expect(data.site.brand).toStrictEqual({})
    } finally {
      rmSync(dir, { recursive: true, force: true })
    }
  })

  it('缺文件 → 明确错误（不静默空）', () => {
    const dir = tempCopy('missing')
    try {
      rmSync(join(dir, 'routes.json'))
      expect(() => loadRenderData(dir)).toThrow(/routes\.json/)
      expect(() => loadRenderData(dir)).toThrow(/缺失|不完整/)
    } finally {
      rmSync(dir, { recursive: true, force: true })
    }
  })

  it('SF_BUILD_INPUT 未设置且未传目录 → 明确错误', () => {
    delete process.env.SF_BUILD_INPUT
    expect(() => loadRenderData()).toThrow(/SF_BUILD_INPUT/)
  })

  it('缺省读 SF_BUILD_INPUT 环境变量目录', () => {
    process.env.SF_BUILD_INPUT = FIXTURE
    expect(loadRenderData().site.name).toBe('demo-site')
  })

  it('缓存单例：同目录多次调用只读一次盘（引用同一 + 落盘变化不可见）', () => {
    const dir = tempCopy('cache')
    try {
      const first = loadRenderData(dir)
      writeFileSync(
        join(dir, 'site.json'),
        JSON.stringify({ name: 'changed-after-load', origin: 'https://demo.example', locale: 'zh-CN', brand: {} }),
      )
      const second = loadRenderData(dir)
      expect(second).toBe(first)
      expect(second.site.name).toBe('demo-site') // 未重读盘
    } finally {
      rmSync(dir, { recursive: true, force: true })
    }
  })

  it('编码 slug 原样贯穿：字节不变、路由编码路径原样（前置事实 7）', () => {
    const data = loadRenderData(FIXTURE)
    const page = data.contents.find((c) => c.typeKey === 'basic_page')
    expect(page?.slug).toBe('%e5%85%b3%e4%ba%8e%e6%88%91%e4%bb%ac')
    expect(decodeURIComponent(page!.slug)).not.toBe(page!.slug) // 夹具确为编码形态
    expect(data.routes.some((r) => r.routePath === '/%e5%85%b3%e4%ba%8e%e6%88%91%e4%bb%ac/')).toBe(true)
    // 结构保证：loader 源码不得引入 decodeURIComponent
    expect(readFileSync(LOADER_SRC, 'utf8')).not.toContain('decodeURIComponent')
  })

  it('content.json 顶层非数组 → 明确错误（不静默空）', () => {
    const dir = tempCopy('shape')
    try {
      writeFileSync(join(dir, 'content.json'), JSON.stringify({ oops: true }))
      expect(() => loadRenderData(dir)).toThrow(/content\.json/)
    } finally {
      rmSync(dir, { recursive: true, force: true })
    }
  })
})