# 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. ## Options
prod

--prod

Flag to set configuration to "prod".

configuration

--configuration (alias: -c)

Specify the configuration to use.

main

--main

The name of the main entry-point file.

ts-config

--ts-config

The name of the TypeScript configuration file.

karma-config

--karma-config

The name of the Karma configuration file.

polyfills

--polyfills

The name of the polyfills file.

environment

--environment

Defines the build environment.

source-map

--source-map

Output sourcemaps.

progress

--progress

Log progress to the console while building.

watch

--watch

Run build when files change.

poll

--poll

Enable and define the file watching poll time period in milliseconds.

preserve-symlinks

--preserve-symlinks

Do not use the real path when resolving modules.

browsers

--browsers

Override which browsers tests are run against.

code-coverage

--code-coverage

Output a code coverage report.