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MealQuest/web/src/sw/worker.test.ts
T
dev_agentandClaude Opus 5.5 8f5ab773fc
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Clear offline data on logout, test offline plan and recipe reads, drop Pillow
- POST /auth/logout answers with Clear-Site-Data: "storage", "cache", which
  removes the verified-session marker, the service worker and its caches, so
  an offline visit after logout cannot reopen household data. The 401/403
  clearing path is unchanged.
- The service worker no longer answers network-only requests; it leaves them
  to the browser. Chrome stalls a Clear-Site-Data navigation that the worker
  answered, so the logout POST must bypass it.
- New tests send plan and recipe reads through the real API client and the
  real network-first strategy online, then serve them from the cache offline.
- The icon generator is now Go on golang.org/x/image (approved) instead of
  Python on Pillow; the icons are regenerated with it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-05 09:36:45 -04:00

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// The service worker itself needs worker globals, so these tests read its
// source: they pin the parts routes.ts cannot express — the API cache's
// strategy, the font strategy's expiration, the font route's place ahead of
// the precache route and network-only requests left to the browser.
import { describe, expect, it } from 'vitest'
import source from '../sw.ts?raw'
describe('service worker source', () => {
it('serves the API cache with the strategy that marks cache fallbacks', () => {
expect(source).toContain('[cacheNames.api]: createApiStrategy(),')
})
it('gives the fonts cache a CacheFirst strategy with an expiration plugin', () => {
expect(source).toMatch(
/\[cacheNames\.fonts\]: new CacheFirst\(\{\s*cacheName: cacheNames\.fonts,\s*plugins: \[\s*new ExpirationPlugin\(\{ maxEntries: \d+, maxAgeSeconds: [^}]+\}\)/,
)
})
it('falls back to the precached font when the network fails', () => {
expect(source).toContain('handlerDidError: async ({ request }) => matchPrecache(request.url)')
})
it('registers the font route before the precache route', () => {
const fontRoute = source.indexOf("registerRoute(isFont, handle, 'GET')")
const precache = source.indexOf('precacheAndRoute(self.__WB_MANIFEST)')
expect(fontRoute).toBeGreaterThanOrEqual(0)
expect(precache).toBeGreaterThan(fontRoute)
})
it('leaves network-only requests to the browser instead of answering them', () => {
// Chrome stalls a navigation whose Clear-Site-Data response (POST
// /auth/logout) the worker answered, so the worker must not match it.
expect(source).toMatch(
/function answered\(options: \{ request: Request; url: URL \}\): boolean \{\s*return routeOf\(options\)\.strategy !== 'network-only'/,
)
expect(source).toContain('registerRoute(answered, handle, method)')
expect(source).not.toContain('registerRoute(() => true')
})
it('activates a waiting worker when the update prompt sends SKIP_WAITING', () => {
expect(source).toMatch(
/self\.addEventListener\('message', \(event\) => \{\s*if \(event\.data\?\.type === 'SKIP_WAITING'\) void self\.skipWaiting\(\)/,
)
})
})