Add test suite

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Figure out how to test js and vuejs.

• Vuejs testing.
• VueJS suggests using Karma for testing.
• Jasmin supposedly helps making Karma play nice with Travis.
• Reading this might also help when testing GUI stuff on Travis.
• Here an example of a project that actually uses Vuejs unit testing with Travis.

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• This blog gives a decent introduction to setting up a test environment with Karma and Jasmin. One should use npm outdated though to get the latest packages.
• After the first introduction this blog shows how to use Mocha and Chai instead of Jasmin and introduces deployment to Travis and code coverage.

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Known issues with the current setup

• Individual builds on Travis with os: linux randomly fail with the message "Some of your tests did a full page reload!", but run fine if the exact same build is restarted on Travis... So far it seems, that only builds for Chrome and Opera are affected. Seems to be a Karma problem as far as this issue describes it. Therefore the .travis.yml contains allowed fails for os: linux builds that test Opera and Chrome.
• The osx build for Safari with the karma setting browserNoActivityTimeout: 60000 (suggested by Travis) still fails due to timeout. Therefore the value has been increased to 100000.

Resources

Unit testing

• Karma
• Karma Tutorial
• Mochajs
• Chaijs

Coverage

• Javascript karma code coverage configuration for browserify and jasmine
• How to set up Mocha + Chai + Sinon + Karma + Browserify +Istanbul + Codecov

Travis CI setup

• Testing JavaScript with Jasmine, Travis, and Karma
• How to Run Karma Tests in a Docker Container
• Dealing with Karma and Travis timeouts
• Building Better npm Modules with Travis and Coveralls

Appveyor CI setup

• Appveyor - Testing with Node.js
• JavaScript Testing with Latest Firefox and Chrome on AppVeyor

Example projects

Example projects that were very helpful figuring our the specific details of various config files.

• tongrhj/karma-test
• yesley gist: ES6 + Babel + Browserify + Mocha + Chai + Karma + Istanbul + PhantomJS
• Linux and OSX travis builds
• Linux and OSX travix matrix builds