About

jest-doctor is a custom jest environment that addresses asynchronous leaks. It is designed to enhance test reliability by preventing flaky test failures, enabling developers to maintain a cleaner and more stable testing environment.

It detects and reports when tests:

• Leave unresolved promises
• Leave open real or fake timers
• Leave DOM listeners attached
• Rely on excessive real-time delays
• Produce unexpected console or process output

For comprehensive documentation and detailed usage instructions, please visit the official documentation site: jest-doctor Documentation.

If jest-doctor helped you eliminate flaky tests, consider ⭐ starring the repo — it helps others discover the project and motivates continued development.

There is also a feature request to integrate parts of the environment in jest itself.