A spec that arms `page.route(...)` in a `beforeEach` and never drops the
handler races its own teardown. The context closes, an async handler is
still awaiting, its next call rejects with "Test ended.", and Playwright
attributes that to the test that had just passed. With `retries: 2` plus
`failOnFlakyTests`, which spec bites is a matter of timing.
`e2e/setup/test.ts` re-exports Playwright's `test` extended with an auto
fixture that unroutes every page and the context after each test, and
clears the page event listeners a spec subscribes to; `expect` rides
along so a spec needs one import. Auto means a spec author cannot forget
it and does not have to know it exists. Every spec now takes `test` from
there, and `e2e-route-cleanup-guard.test.ts` keeps the import boundary
closed with an allowlist that carries its reason.
The per-file `afterEach` on the cycle spec goes away — leaving both would
read as not trusting the fixture.
Not covered: a page inside a context a spec builds itself. Only
`share-documents.spec.ts` does that, and it owns those contexts.
The tablet icon-rail collapse is mounted-gated (SSR and the hydration
frame paint the expanded 256px shell to avoid a React #418 mismatch),
so the resolved layout lands on the first client render after hydration
settles. On a loaded runner that can arrive just after networkidle,
letting the guard measure a mid-hydration frame (main=512 instead of
~704). Wait for the content column to reach its settled width before
measuring; a real regression still fails via the wait timing out.
Marc-André Bombeck