# ts-jest

**Repository Path**: mirrors_TrySound/ts-jest

## Basic Information

- **Project Name**: ts-jest
- **Description**: A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-07-26
- **Last Updated**: 2025-09-21

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

<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=master"><img src="https://coveralls.io/repos/github/kulshekhar/ts-jest/badge.svg?branch=master" alt="Coverage status"/> </a>
  <a href="https://actions-badge.atrox.dev/kulshekhar/ts-jest/goto?ref=master"><img alt="GitHub actions" src="https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fkulshekhar%2Fts-jest%2Fbadge%3Fref%3Dmaster&style=flat-square" /> </a>
  <a href="https://github.com/kulshekhar/ts-jest/blob/master/LICENSE.md"><img src="https://img.shields.io/npm/l/ts-jest.svg?style=flat-square" alt="GitHub license"/> </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`)](https://kulshekhar.github.io/ts-jest/docs/babel7-or-ts).

---

| 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)](https://kulshekhar.github.io/ts-jest)

[<img src="./website/static/img/discord.svg" align="left" height="24"> Ask for some help in the `Jest` Discord community](https://discord.gg/j6FKKQQrW9) or [`ts-jest` GitHub Discussion](https://github.com/kulshekhar/ts-jest/discussions)

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

[<img src="./website/static/img/pull-request.png" align="left" height="24"> We're looking for collaborators! Want to help improve `ts-jest`?](https://github.com/kulshekhar/ts-jest/issues/223)

---

## Getting Started

These instructions will get you setup to use `ts-jest` in your project. For more detailed documentation, please check [online documentation](https://kulshekhar.github.io/ts-jest).

|                     | 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 t` or `npx jest`          | `yarn test` or `yarn jest`           |

## Built With

- [TypeScript](https://www.typescriptlang.org/) - JavaScript that scales
- [Jest](https://jestjs.io/) - Delightful JavaScript Testing
- [`ts-jest`](https://kulshekhar.github.io/ts-jest) - Jest [transformer](https://jestjs.io/docs/next/code-transformation#writing-custom-transformers) for TypeScript _(yes, `ts-jest` uses itself for its tests)_

## Contributing

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

## Versioning

We **DO NOT** use [SemVer](http://semver.org/) 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](https://github.com/kulshekhar/ts-jest/tags).

## Authors/maintainers

- **Kulshekhar Kabra** - [kulshekhar](https://github.com/kulshekhar)
- **Gustav Wengel** - [GeeWee](https://github.com/GeeWee)
- **Ahn** - [ahnpnl](https://github.com/ahnpnl)
- **Huafu Gandon** - [huafu](https://github.com/huafu)

See also the list of [contributors](https://github.com/kulshekhar/ts-jest/contributors) who participated in this project.

## Supporters

- [JetBrains](https://www.jetbrains.com/?from=ts-jest) has been kind enough to support ts-jest with an [open source license](https://www.jetbrains.com/community/opensource/?from=ts-jest).

## License

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