condition-based-waiting

Condition-based waiting fixes flaky tests by replacing arbitrary timeouts with polling that waits for actual state changes. This ensures deterministic outcomes by continuously checking until a specific condition evaluates to true.

The best way to wait for an asynchronous operation is using a waitForEvent pattern that polls for specific state changes. This provides a generic condition-based waiting mechanism with a timeout to handle unpredictable background job timing.

You wait for collection population during async testing by implementing a waitFor condition that polls until items achieve the desired length. This replaces explicit sleeps with polling that checks if the collection state matches your criteria.

Yes, condition-based waiting works for both unit and integration tests across UI events, asynchronous operations, and long-running processes. It provides specialized variants like waitForEvent and waitForEventMatch to handle diverse unpredictable timing scenarios.

Polling for state changes produces deterministic test results because it waits for actual conditions to be met rather than relying on fixed delays that may expire too early or waste time. This timing variance reduction eliminates CI failures.