update

src/services/zipExporter.test.ts

@@ -0,0 +1,35 @@
+import JSZip from 'jszip'
+import { describe, expect, it } from 'vitest'
+import { createEmptyTeachingDesign } from '../domain/teachingDesign'
+import { createBookZip } from './zipExporter'
+
+describe('createBookZip', () => {
+  it('keeps original lesson filenames and adds an order manifest', async () => {
+    const second = createEmptyTeachingDesign('2.md')
+    second.topic = '第二课'
+    const first = createEmptyTeachingDesign('1.md')
+    first.topic = '第一课'
+
+    const blob = await createBookZip([second, first])
+    const zip = await JSZip.loadAsync(blob)
+
+    expect(Object.keys(zip.files)).toEqual(
+      expect.arrayContaining(['2.md', '1.md', '课程顺序.txt']),
+    )
+    await expect(zip.file('课程顺序.txt')?.async('text')).resolves.toContain('1. 2.md')
+  })
+
+  it('disambiguates duplicate filenames', async () => {
+    const first = createEmptyTeachingDesign('1.md')
+    first.topic = '第一课甲'
+    const duplicate = createEmptyTeachingDesign('1.md')
+    duplicate.topic = '第一课乙'
+
+    const blob = await createBookZip([first, duplicate])
+    const zip = await JSZip.loadAsync(blob)
+
+    expect(Object.keys(zip.files)).toEqual(
+      expect.arrayContaining(['1.md', '1-2.md', '课程顺序.txt']),
+    )
+  })
+})