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# Coverage
Code coverage is not implemented by the [CLI](/docs/cli.md) directly.
Instead, `uvu` plays nicely with existing coverage tools like [`c8`](https://www.npmjs.com/package/c8) or [`nyc`](https://www.npmjs.com/package/nyc). <br>Please refer to their respective documentations for usage information.
## Examples
> Visit the working [`/examples/coverage`](/examples/coverage) demonstration~!
Assuming we have a `uvu` command hooked up to the `npm test` script:
```js
// package.json
{
"scripts": {
"test": "uvu tests --ignore fixtures"
}
}
```
We can then use `nyc` or `c8` (or others) as a prefix to our `npm test` usage:
```sh
$ c8 npm test
$ nyc npm test
$ c8 yarn test
$ nyc yarn test
$ nyc --include=src npm test
$ c8 --all npm test
```
Of course, you can also use `c8`/`nyc` directly with `uvu` – it just makes it more confusing to distinguish CLI option flags:
```sh
$ c8 uvu tests --ignore fixtures
$ nyc --include=src uvu tests --ignore fixtures
```
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