# vitest/no-restricted-matchers

📝 Disallow the use of certain matchers.

⚠️ This rule _warns_ in the 🌐 `all` config.

<!-- end auto-generated rule header -->

### Rule Details

This rule disallows the use of certain matchers.

### For Example

### Options

```json
{
  "vitest/no-restricted-matchers": [
    "error",
    {
      "not": null
    }
  ]
}
```

Examples of **incorrect** code for this rule with the above configuration

```js
expect(a).not.toBe(b)
```

Examples of **correct** code for this rule with the above configuration

```js
expect(a).toBe(b)
```