Скачать или смотреть #0 React Testing For Beginners

In this series we demystify React testing for beginners. We show you how to test React components using Jest & React Testing Library. No prior testing experience necessary.

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Developer Ready

Complete and ready to set-up JavaScript testing solution. Works out of the box for any React project.


Instant Feedback

Fast interactive watch mode runs only test files related to changed files and is optimized to give signal quickly.


Snapshot Testing

Capture snapshots of React trees or other serializable values to simplify testing and to analyze how state changes over time.

Zero configuration testing platform
Jest is used by Facebook to test all JavaScript code including React applications. One of Jest's philosophies is to provide an integrated "zero-configuration" experience. We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn results in more stable and healthy code bases.