condition-based-waiting

Fix flaky tests by replacing arbitrary sleeps with condition-based waiting, which polls for actual state changes instead of relying on fixed timeouts. This ensures test reliability across different execution speeds and environments.

Condition-based waiting is a testing pattern that verifies real state changes by repeatedly polling for a specific condition. It eliminates race-prone failures by ensuring tests only proceed when the expected asynchronous state is actually reached.

Yes, condition polling applies to unit, integration, and end-to-end tests. It handles asynchronous operations and race-prone scenarios by waiting for DOM updates, API responses, or async state transitions across common test frameworks.

Replace sleep-based waits with reusable helper functions like waitForCondition and waitForElement. These functions poll for the expected state using a reasonable timeout, verifying actual state changes rather than waiting for arbitrary durations.

Fixed timeouts cause flaky tests because they do not account for varying execution speeds or environmental delays. Condition-based waiting solves this by polling for the actual condition, ensuring the test only advances when the expected state is verified.