task-146: collectdata 自洽行为契约（后端无 file 字段 VO 快照、前端 success+downloadUrl 判定含空白边界）+ 前后端 13 条测试

frontend-vue/tests/collect-download.test.ts

@@ -0,0 +1,43 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+
+import { canDownloadCollectDataItem } from '../src/shared/collect-download.ts'
+
+interface Item {
+  success?: boolean | null
+  downloadUrl?: string | null
+  taskStatus?: string | null
+}
+
+test('collectdata downloadable when success and url present', () => {
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: 'https://dl.example/a.xlsx' }), true)
+})
+
+test('collectdata not downloadable without url', () => {
+  assert.equal(canDownloadCollectDataItem({ success: true }), false)
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: null }), false)
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: '' }), false)
+})
+
+test('collectdata failed task not downloadable', () => {
+  assert.equal(canDownloadCollectDataItem({ success: false, downloadUrl: 'https://dl.example/a.xlsx' }), false)
+})
+
+test('collectdata url must be non-blank to be valid', () => {
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: '   ' }), false)
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: 'https://x' }), true)
+})
+
+test('collectdata progress display fields do not include file phase', () => {
+  const item: Item = { success: false, taskStatus: 'RUNNING' }
+  assert.equal('fileStatus' in item, false, 'collectdata 无 file 阶段字段（与后端 VO 自洽）')
+  assert.equal('fileReady' in item, false)
+  assert.equal('fileProgressPercent' in item, false)
+})
+
+test('collectdata semantics frozen', () => {
+  assert.equal(canDownloadCollectDataItem(undefined), false)
+  assert.equal(canDownloadCollectDataItem(null), false)
+  assert.equal(canDownloadCollectDataItem({}), false)
+  assert.equal(canDownloadCollectDataItem({ success: true, downloadUrl: 'x', taskStatus: 'SUCCESS' }), true)
+})