# @vitest/expect | |
Jest's expect matchers as a Chai plugin. | |
## Usage | |
```js | |
import * as chai from 'chai' | |
import { JestAsymmetricMatchers, JestChaiExpect, JestExtend } from '@vitest/expect' | |
// 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) | |
``` | |