jestjs/jest

Delightful JavaScript Testing.

<p align="center"> <a href="https://www.npmjs.com/package/jest"><img src="https://img.shields.io/npm/v/jest" alt="npm version"></a> <a href="https://github.com/jestjs/jest/blob/main/LICENSE"><img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="Jest is released under the MIT license."></a> <a href="https://twitter.com/intent/follow?screen_name=jestjs_"><img src="https://img.shields.io/twitter/follow/jestjs_.svg?style=social&label=Follow%20@jestjs_" alt="Follow on Twitter" /></a> </p> <p align="center"> <a href="https://github.com/jestjs/jest/actions/workflows/nodejs.yml"><img alt="GitHub CI Status" src="https://img.shields.io/github/actions/workflow/status/jestjs/jest/nodejs.yml?label=CI&logo=GitHub"></a> <a href="https://codecov.io/github/jestjs/jest"><img alt="Coverage Status" src="https://img.shields.io/codecov/c/github/jestjs/jest/main.svg?maxAge=43200"></a> </p> <p align="center"> <a href="https://gitpod.io/#https://github.com/jestjs/jest"><img alt="Gitpod ready-to-code" src="https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod"></a> </p> <!-- A spacer --> <p>&nbsp;</p> <p align="center"><img src="website/static/img/jest-readme-headline.png" width="80%"/></p> <h2 align="center">🃏 Delightful JavaScript Testing</h2> **👩🏻‍💻 Developer Ready**: A comprehensive JavaScript testing solution. Works out of the box for most JavaScript projects. **🏃🏽 Instant Feedback**: Fast, interactive watch mode only runs test files related to changed files. **📸 Snapshot Testing**: Capture snapshots of large objects to simplify testing and to analyze how they change over time. <p align="right"><em>See more on <a href="https://jestjs.io">jestjs.io</a></em></p> ## Table of Contents - [Getting Started](#getting-started) - [Running from command line](#running-