# Unit Test Manual
## Create a new Unit Test
Our unit tests for every web component are based in the Angular's unit testing standard using the JEST runner.
## How to run existing unit tests
To execute the existing unit tests use the `npm run test` command using the command line terminal.
If you want to see the coverage report for unit test use the `npm run test` command. It is configured to run the `ng test` command using some flags that generates the coverage report. Also you can manually run `ng test` using:
```
ng test --watch=false --code-coverage
```
The coverage report is generated in a folder called `coverage` in the root of the WebComponents project:
You can see the generated report opening the `index.html` file that is inside the `coverage` folder:
Currently there is a coverage threshold of 90%, therefore the build process will fail if you try to commit a component with less unit tests coverage.
{% hint style="info" %}
If you want more info about how to create a unit test and the best practices, you can consult our documentation ([Frontend Unit Testing](https://docs.mobilize.net/quality-process-documentation/-MdOocvpdZXjVDQHlaPZ/description-1/unit-test/frontend-unit-testing)).
{% endhint %}
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