Practical Strategies to Reduce Flaky Tests in CI/CD Pipelines

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Flaky tests undermine confidence in CI/CD pipelines, slow down releases, and drain engineering resources. Experts recommend keeping auto-retries to a maximum of one or two attempts and using them only for transient network issues, while ensuring every test is stateless and cleans up shared resources. Stable selectors such as data-test-id attributes are preferred over fragile CSS or XPath locators, and parallelism should start conservatively to prevent resource exhaustion on runner nodes. Teams are advised to define flakiness thresholds over a rolling seven-day window, escalating to release blocks when intermittent failure rates exceed five percent. Tracking retry counts and flaky test flags through dashboards and reporting tools like Allure helps teams catch degrading tests before they impact deployments.

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