Jest
Delightful JavaScript testing framework
Language: JavaScriptCategory: TestingFirst released: 2014Created by: MetaLicense: MIT
Jest is a zero-config JavaScript testing framework maintained by Meta. It provides a rich assertion library, test running, coverage reporting, and built-in mocking capabilities. With its snapshot testing feature and watch mode, Jest has become the default test runner for React and many modern JavaScript projects.
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Key Features
Snapshot TestingZero ConfigWatch ModeBuilt-in MockingCode Coverage