# @vitest/expect

[![NPM version](https://img.shields.io/npm/v/@vitest/runner?color=a1b858&label=)](https://npmx.dev/package/@vitest/runner)

Jest's expect matchers as a Chai plugin.

## Usage

```js
import {
  JestAsymmetricMatchers,
  JestChaiExpect,
  JestExtend,
} from '@vitest/expect'
import * as chai from 'chai'

// allows using expect.extend instead of chai.use to extend plugins
chai.use(JestExtend)
// adds all jest matchers to expect
chai.use(JestChaiExpect)
// adds asymmetric matchers like stringContaining, objectContaining
chai.use(JestAsymmetricMatchers)
```

[GitHub](https://github.com/vitest-dev/vitest/tree/main/packages/expect) | [Documentation](https://vitest.dev/api/expect)