# ng test ## Overview `ng test` compiles the application into an output directory ### Running unit tests ```bash ng test ``` Tests will execute after a build is executed via [Karma](http://karma-runner.github.io/0.13/index.html), and it will automatically watch your files for changes. You can run tests a single time via `--watch=false` or `--single-run`. You can run tests with coverage via `--code-coverage`. The coverage report will be in the `coverage/` directory. Linting during tests is also available via the `--lint` flag. See [Linting and formatting code](#linting-and-formatting-code) chapter for more informations. ## Options `--watch` (`-w`) flag to run builds when files change `--browsers` override which browsers tests are run against `--colors` enable or disable colors in the output (reporters and logs) `--log-level` level of logging `--port` port where the web server will be listening `--reporters` list of reporters to use `--build` flag to build prior to running tests