task-106(任务与重复分析中心): 实现视频任务批量下载任务

新增 image-video-download.ts(选择键解析/打包请求体/响应头计数/下载 job 状态)， image-video-api.ts 增加 requestVideoZipDownload(POST /download-zip, blob)。 TDD: task-106.test.ts 8 用例先 RED 后 GREEN。
2026-09-05 17:11:00 +08:00
parent 64f9ac54cf
commit d2ef1ce4d8
3 changed files with 163 additions and 1 deletions
@@ -0,0 +1,74 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import {
+  createBatchDownloadJob,
+  downloadZipHeaderCounts,
+  failBatchDownload,
+  parseVideoSelectionKey,
+  startBatchDownload,
+  succeedBatchDownload,
+  toVideoZipRequest,
+} from '../src/pages/tasks/image-video-download.ts'
+
+test('test_task_106_video_batch_download_normal_primary_path', () => {
+  // 正常主路径：选择键解析为 {task_id, video_index} 打包请求体。
+  const key = parseVideoSelectionKey('11:2')
+  assert.deepEqual(key, { taskId: 11, videoIndex: 2 })
+  assert.deepEqual(toVideoZipRequest(['11:2', '7:0']), {
+    items: [
+      { task_id: 11, video_index: 2 },
+      { task_id: 7, video_index: 0 },
+    ],
+  })
+})
+
+test('test_task_106_video_batch_download_normal_variant_input', () => {
+  // 正常变体：job 从 running 到 done 携带成功/失败计数。
+  const job = succeedBatchDownload(startBatchDownload(createBatchDownloadJob()), 18, 2)
+  assert.equal(job.status, 'done')
+  assert.equal(job.fileCount, 18)
+  assert.equal(job.errorCount, 2)
+})
+
+test('test_task_106_video_batch_download_repeated_is_idempotent', () => {
+  // 正常重复：请求体构建稳定、去重键不重复。
+  assert.deepEqual(toVideoZipRequest(['1:0', '1:0', '2:1']), { items: [{ task_id: 1, video_index: 0 }, { task_id: 2, video_index: 1 }] })
+})
+
+test('test_task_106_video_batch_download_boundary_empty_input', () => {
+  // 边界空值：无选择/空任务 id 键被忽略。
+  assert.deepEqual(toVideoZipRequest([]), { items: [] })
+  assert.equal(parseVideoSelectionKey('9:empty'), null)
+})
+
+test('test_task_106_video_batch_download_boundary_single_item', () => {
+  // 边界单元素：单键请求体。
+  assert.deepEqual(toVideoZipRequest(['5:0']), { items: [{ task_id: 5, video_index: 0 }] })
+  assert.deepEqual(createBatchDownloadJob(), { status: 'idle' })
+})
+
+test('test_task_106_video_batch_download_boundary_limit_or_missing_field', () => {
+  // 边界上限/缺字段：响应头大小写不敏感解析计数。
+  assert.deepEqual(downloadZipHeaderCounts({ 'X-Archive-File-Count': '3', 'x-archive-error-count': '1' }), { fileCount: 3, errorCount: 1 })
+  assert.deepEqual(downloadZipHeaderCounts({}), {})
+})
+
+test('test_task_106_video_batch_download_invalid_input_rejected', () => {
+  // 异常输入：失败 job 带可操作消息；非数字头忽略。
+  const job = failBatchDownload(createBatchDownloadJob(), '单次最多打包 100 个视频')
+  assert.equal(job.status, 'failed')
+  assert.equal(job.message, '单次最多打包 100 个视频')
+  assert.deepEqual(downloadZipHeaderCounts({ 'x-archive-file-count': 'abc' }), {})
+  assert.equal(parseVideoSelectionKey('bad'), null)
+})
+
+test('test_task_106_video_batch_download_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败/下载走 adapter：打包模型纯逻辑；adapter POST /download-zip + blob。
+  const model = readSource('src/pages/tasks/image-video-download.ts')
+  assert.equal(/axios|http\.|vue/.test(model), false, '批量下载模型保持纯逻辑')
+  const api = readSource('src/pages/tasks/image-video-api.ts')
+  assert.match(api, /download-zip/)
+  assert.match(api, /requestVideoZipDownload/)
+  assert.match(api, /responseType:\s*['\"]blob['\"]/)
+})