#424

frontend/src/pages/help/HelpChangesPage.test.tsx

@@ -0,0 +1,41 @@
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { render, screen } from '@testing-library/react'
+import { HelmetProvider } from 'react-helmet-async'
+import { describe, expect, it, vi } from 'vitest'
+
+import { apiGet } from '@/lib/api'
+import App from '@/App'
+
+vi.hoisted (() => {
+  window.history.replaceState (null, '', '/help/changes')
+})
+
+vi.mock ('@/lib/help', async () => (await import ('@/test/helpFixtures')).helpFixture.api)
+vi.mock ('@/lib/api', () => ({ apiGet: vi.fn (), apiPost: async () => ({}),
+			    isApiError: () => false }))
+vi.mock ('@/components/TopNav', () => ({ default: () => null }))
+vi.mock ('@/components/DevModeWatermark', () => ({ default: () => null }))
+vi.mock ('@/lib/useClientBehaviourSettings', () => ({
+    useClientBehaviourSettings: () => ({ animation: 'off', linkPreload: 'off' }) }))
+
+
+describe ('Help global edition history', () => {
+  it ('routes /help/changes to published editions in date and numeric order', async () => {
+    const client = new QueryClient ({ defaultOptions: { queries: { retry: false } } })
+    const { container } = render (
+	<QueryClientProvider client={client}>
+	  <HelmetProvider><App/></HelmetProvider>
+	</QueryClientProvider>)
+    const links = await screen.findAllByRole ('link')
+    const editions = links.map (link => link.getAttribute ('href'))
+	.filter (href => href?.startsWith ('/help/') && href.includes ('edition='))
+    expect (editions).toEqual ([
+	`/help/${encodeURIComponent ('設定 手順')}?edition=2026-10-03`,
+	'/help/guide?edition=2026-10-02.10', '/help/guide?edition=2026-10-02.3',
+	'/help/guide?edition=2026-10-02.2', '/help/guide?edition=2026-10-02',
+	'/help/guide?edition=2026-10-01'])
+    expect (container).toHaveTextContent ('旧ホーム')
+    expect (apiGet).not.toHaveBeenCalled ()
+    expect (window.location.pathname).toBe ('/help/changes')
+  })
+})