Karma - Travis CI (original) (raw)

Travis CI is a popular continuous integration service that integrates with your Github repository to automatically run your tests when the code is pushed. Integration is done by adding a simpleYAML file to your project root; Travis and Github take care of the rest. Whenever tested, the Travis results will appear in your Github pull requests and your history will be available within their control panel. This article assumes you already have Travis account.

Configure Travis #

Create a file in your project root called .travis.yml with the following YAML content:

language: node_js
node_js:
  - "4"

Set up a Test Command #

If you do not already have a package.json in your project root, create one now. Travis runs npm test to trigger your tests, so this is where you tell Travis how to run your tests.

// ...snip...
"devDependencies": {
  "karma": "~0.12"
},
// ...snip...
"scripts": {
   "test": "karma start --single-run --browsers PhantomJS"
}
// ...snip...

Travis will run npm install before every suite, so this is your chance to specify any modules your app needs that Travis does not know about like Karma.

Configure Travis with Firefox #

Travis supports running a real browser (Firefox) with a virtual screen. Just update your .travis.yml to set up the virtual screen like this:

language: node_js
node_js:
  - "4"
before_script:
  - export DISPLAY=:99.0
  - sh -e /etc/init.d/xvfb start

And now, you can run your tests on Firefox, just change the npm testcommand to

karma start --browsers Firefox --single-run

Notes #