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Unit Tests

The unit tests are based around Mocha and Sinon. This gives a very simple mocking and test interface.

They are run using Karma, which also provides for code coverage.

WebExtension Stubbing

WebExtensions are automatically stubbed by the sinon-chrome package.

Test Files

The test files live in the test/unit directory. karma.conf.js controls the loading and running of tests.

Running the Tests

$ npm run test:karma

Viewing coverage output

You can view the code output in the build/coverage/ directory, this is in html format, so you can load it in the browser.

Enabling Travis and Coveralls

Travis & Coveralls are both free to use for public repositories.

Note: If you do not intend to enable Coveralls, please drop the env -> global -> secure option in .travis.yml.

  • First of all, visit coveralls.io and either start a new account, or sign in to your existing one.
  • Go to Add repo.
  • Find your repository and turn the status to on.
    • You may need to Sync Repo if it is a recently created repository.
  • Click the Details button for the repository you just turned on and copy the repo_token.
  • Encrypt the environment variable e.g.
    • travis encrypt COVERALLS_REPO_TOKEN=my_repo_token
  • Copy the secure: ... output line and replace the secure line in .travis.yml with the contents.
  • Commit & push the results.
  • Go to https://travis-ci.org/ and sign in.
  • Go to your account settings if you're not already there.
  • Find your repository and turn on Travis for it.
    • Again, you might need to sync your account.

Congratulations, you should now be set up. All pushes to your repository and pull requests should automatically be tested. If the tests are successful, the code coverage status will be published to the PR.