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Frederic CabassutandClaude Opus 4.6 370b0bc815 fix: eliminate e2e test flakiness in settings preference and API key tests
Three sources of flakiness fixed:

1. **Preferences sync race** — page.goto() triggers a full reload which
   re-runs initPreferences() + syncPreferencesFromServer(). On slow CI,
   the async server sync can return stale data from parallel test workers
   that share the same user's server-side preferences. Fixed with
   gotoWithStablePrefs() which blocks the one GET /api/preferences sync
   request, so initPreferences() falls back to localStorage (always correct).

2. **localStorage not reset** — resetPreferences() only reset the server.
   After a full page reload, loadFromLocalStorage() could return stale
   values from previous test runs. Now resets both server and localStorage.

3. **API key name collision** — parallel test runs created keys with the
   same name ("Settings Test Key"), causing Playwright strict-mode
   violations when multiple elements matched. Fixed with Date.now()
   unique suffixes.

Verified: 167/167 settings tests pass (20x repeat), 173/173 full suite (5x).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-10 23:39:29 +01:00
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