ENH - overhaul App Store experience

frontend/src/utils/appStoreHighlights.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest'
+
+import { getDailyHighlights } from '@/utils/appStoreHighlights'
+
+const candidates = [
+  { id: 'banking' },
+  { id: 'feather' },
+  { id: 'snake' },
+  { id: 'music' },
+  { id: 'picstagram' },
+]
+
+describe('daily App Store highlights', () => {
+  it('keeps the generated order stable throughout one local day', () => {
+    const morning = getDailyHighlights(candidates, new Date(2026, 7, 14, 8, 15))
+    const evening = getDailyHighlights(
+      candidates,
+      new Date(2026, 7, 14, 22, 45),
+    )
+
+    expect(evening).toEqual(morning)
+    expect(morning).toHaveLength(candidates.length)
+  })
+
+  it('generates a different curation for the next local day', () => {
+    const today = getDailyHighlights(candidates, new Date(2026, 7, 14))
+    const tomorrow = getDailyHighlights(candidates, new Date(2026, 7, 15))
+
+    expect(tomorrow.map((app) => app.id)).not.toEqual(
+      today.map((app) => app.id),
+    )
+  })
+})