Flaky tests: their hidden costs and how to address flaky behavior

Flaky tests can significantly slow down the software delivery cycle and cause frustration among developers. They increase creation, execution, fixing, and psychological costs of testing. To combat flakiness, organizations need to implement systems-level changes such as automatic flaky test detection, blocking commits that introduce new flaky tests, configuring automatic retries, and quarantining frequently flaking tests. Tools like Datadog Test Visibility can help detect and track the impact of flaky tests on CI workflows.