condition-based-waiting

Fix flaky tests by replacing fixed timeouts with condition polling for asynchronous operations. This approach checks for actual UI visibility or state conditions, eliminating intermittent timing failures without guesswork.

The best way to wait for a UI element is using condition polling instead of sleep. You replace fixed delays with checks for actual conditions, waiting until the element is actually visible or interactive before proceeding.

Yes, condition polling works with Playwright and Testing Library by leveraging their built-in waiting mechanisms. Playwright offers auto-waiting, and Testing Library provides `waitFor`, with custom polling functions as a fallback.

Implement custom polling logic by writing a fallback polling function that repeatedly checks for a specific condition. This pattern replaces arbitrary timeouts when built-in framework utilities like Playwright's auto-waiting are insufficient.

Integration tests intermittently fail due to timing issues because arbitrary timeouts and race conditions cause asynchronous operations to resolve unpredictably. Replacing fixed delays with condition-based polling ensures tests wait for actual states.

You should avoid condition-based waiting when testing synchronous code or operations with deterministic timing. It targets asynchronous execution and intermittent UI failures, so deterministic tests may not benefit from condition polling overhead.