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<h1 align="center">ts-jest</h1> <p align="center">A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript.</p> <p align="center"> <a href="https://www.npmjs.com/package/ts-jest"><img src="https://img.shields.io/npm/v/ts-jest/latest.svg?style=flat-square" alt="NPM version" /> </a> <a href="https://www.npmjs.com/package/ts-jest"><img src="https://img.shields.io/npm/dm/ts-jest.svg?style=flat-square" alt="NPM downloads"/> </a> <a href="https://snyk.io/test/github/kulshekhar/ts-jest"><img src="https://snyk.io/test/github/kulshekhar/ts-jest/badge.svg?style=flat-square" alt="Known vulnerabilities"/> </a> <a href="https://coveralls.io/github/kulshekhar/ts-jest?branch=main"><img src="https://coveralls.io/repos/github/kulshekhar/ts-jest/badge.svg?branch=main" alt="Coverage status"/> </a> <a href="https://actions-badge.atrox.dev/kulshekhar/ts-jest/goto?ref=main"><img alt="GitHub actions" src="https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fkulshekhar%2Fts-jest%2Fbadge%3Fref%3Dmain&style=flat-square" /> </a> <a href="https://github.com/kulshekhar/ts-jest/blob/main/LICENSE.md"><img src="https://img.shields.io/npm/l/ts-jest.svg?style=flat-square" alt="GitHub license"/> </a> <a href="https://gurubase.io/g/ts-jest"><img src="https://img.shields.io/badge/Gurubase-Ask%20ts--jest%20Guru-006BFF?style=flat-square" alt="Gurubase"/> </a> </p> <img src="./icon.png" align="right" title="ts-jest Logo" width="128" height="128">

It supports all features of TypeScript including type-checking. Read more about Babel7 + preset-typescript vs TypeScript (and ts-jest).

We are not doing semantic versioning and `23.10` is a re-write, run `npm i -D ts-jest@"<23.10.0"` to go back to the previous version

<img src="./website/static/img/documentation.png" align="left" height="24"> View the online documentation (usage & technical)

<img src="./website/static/img/discord.svg" align="left" height="24"> Ask for some help in the Jest Discord community or ts-jest GitHub Discussion

<img src="./website/static/img/troubleshooting.png" align="left" height="24"> Before reporting any issues, be sure to check the troubleshooting page

<img src="./website/static/img/pull-request.png" align="left" height="24"> We're looking for collaborators! Want to help improve ts-jest?

Getting Started

These instructions will get you setup to use ts-jest in your project. For more detailed documentation, please check online documentation.

	using npm	using yarn
Prerequisites	`npm i -D jest typescript`	`yarn add --dev jest typescript`
Installing	`npm i -D ts-jest @types/jest`	`yarn add --dev ts-jest @types/jest`
Creating config	`npx ts-jest config:init`	`yarn ts-jest config:init`
Running tests	`npm test` or `npx jest`	`yarn test` or `yarn jest`

Built With

TypeScript - JavaScript that scales
Jest - Delightful JavaScript Testing
ts-jest - Jest transformer for TypeScript (yes, ts-jest uses itself for its tests)

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Versioning

We DO NOT use SemVer for versioning. Though you can think about SemVer when reading our version, except our major number follows the one of Jest. For the versions available, see the tags on this repository.

Authors/maintainers

Kulshekhar Kabra - kulshekhar
Gustav Wengel - GeeWee
Ahn - ahnpnl
Huafu Gandon - huafu

See also the list of contributors who participated in this project.

Supporters

JetBrains has been kind enough to support ts-jest with an open source license.

License

This project is licensed under the MIT License - see the LICENSE.md file for details