# Run tests in watch mode with Bun

Use the `--watch` flag to run your tests in watch mode.

```sh terminal icon="terminal"
bun test --watch
```

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Watch mode restarts the running Bun process whenever a file changes. It's fast. In this example, the editor saves the file on every keystroke.

<Frame>
  ![Running tests in watch mode in
  Bun](https://github.com/oven-sh/bun/assets/3084745/dc49a36e-ba82-416f-b960-1c883a924248)
</Frame>

---

See [`bun test`](/test).