#424

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

@@ -1,10 +1,11 @@
 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 { beforeEach, describe, expect, it, vi } from 'vitest'
 
 import { apiGet } from '@/lib/api'
 import App from '@/App'
+import { helpFixture } from '@/test/helpFixtures'
 
 vi.hoisted (() => {
   window.history.replaceState (null, '', '/help/changes')
@@ -20,6 +21,8 @@ vi.mock ('@/lib/useClientBehaviourSettings', () => ({
 
 
 describe ('Help global edition history', () => {
+  beforeEach (() => helpFixture.reset ())
+
   it ('routes /help/changes to published editions in date and numeric order', async () => {
     const client = new QueryClient ({ defaultOptions: { queries: { retry: false } } })
     const { container } = render (
@@ -35,6 +38,15 @@ describe ('Help global edition history', () => {
 	'/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 (screen.getAllByRole ('columnheader').map (cell => cell.textContent))
+	.toEqual (['差分', 'タイトル', '有効開始年月日'])
+    expect (container).not.toHaveTextContent ('未公開ホーム')
+    expect (screen.getAllByRole ('link', { name: '差分' }).map (link =>
+	link.getAttribute ('href'))).toEqual ([
+	'/help/guide/diff?from=2026-10-02.3&to=2026-10-02.10',
+	'/help/guide/diff?from=2026-10-02.2&to=2026-10-02.3',
+	'/help/guide/diff?from=2026-10-02&to=2026-10-02.2',
+	'/help/guide/diff?from=2026-10-01&to=2026-10-02'])
     expect (apiGet).not.toHaveBeenCalled ()
     expect (window.location.pathname).toBe ('/help/changes')
   })