Karma - JS Test Runner

Transcript

1. Karma JS Test Runner Sebastiano Armeli @sebarmeli 14/8/2013 - MelbJS

2. Karma JS Test Runner Sebastiano Armeli @sebarmeli

3. Karma JS Test Runner Sebastiano Armeli @sebarmeli

4. Test Framework How you write your tests

5. Test Environment Where you execute your tests

6. Test Runner How you run your test

7. What do we need from a Test Runner?

8. it (‘should be fast’)

9. it (‘should use real browsers’)

10. it (‘should be reliable’)

11. it (‘should be reliable’)

12. Karma

13. Client socket.io Client Client socket.io socket.io watcher reporter manager web

    server preprocessor Server

14. Client socket.io Client Client socket.io socket.io watcher reporter manager web

    server http http http preprocessor Server

15. Domain Specific Language (DSL) for defining tests npm install -g

    karma // Ready to use

16. Domain Specific Language (DSL) for defining tests npm install -g

    karma karma init // Create config file

17. Domain Specific Language (DSL) for defining tests npm install -g

    karma karma init karma start // Karma starts listening

18. Domain Specific Language (DSL) for defining tests npm install -g

    karma karma init karma start karma run // Karma runs the tests

19. module.exports = function(config) { config.set({ basePath: './../..', frameworks: ['jasmine', ‘requirejs’],

    files: [ ‘spec/javascripts/test-main.js’, {pattern: 'spec/javascripts/fixtures/**/*.html', watched: false}, {pattern: 'app/assets/javascripts/**/*.js'}, {pattern: 'spec/javascripts/**/*.js'} ], port: 9876, //default browsers: ['Chrome’, ‘ChromeCanary’], singleRun: false, autoWatch: true }); }

20. Plugins Browser Launchers Test Framework Reporters Preprocessors

21. karma-!refox-launcher karma-safari-launcher karma-opera-launcher karma-ie-launcher

22. Plugins Browser Launchers Test Framework Reporters Preprocessors

23. karma-jasmine karma-mocha karma-qunit karma-requirejs

24. Plugins Browser Launchers Test Framework Reporters Preprocessors

25. karma-junit-reporter karma-coverage reporters: [‘junit’], junitReporter : { outputFile: 'test-reports.xml', suite:

    'My Suite' } reporters: [‘coverage’], coverageReporter: { type : 'html', dir : 'coverage/' }

26. Plugins Browser Launchers Test Framework Reporters Preprocessors

27. karma-coverage preprocessors: { './app/assets/javascripts/**/*.js': 'coverage' } preprocessors: { '**/*.handlebars': 'ember'

    } karma-ember-preprocessor

28. Running just one spec?

29. Running just one spec? iit(“should do something”, function(){}); ddescribe(“component”, function(){});

30. Debug http://localhost:9876/debug.html

31. Grunt-Karma karma: { ci: { configFile: 'karma.conf.js', singleRun: true, browsers:

    ['PhantomJS'] } }

32. Running on CI?

33. Running on CI? karma start --singleRun=true --browsers PhantomJS --reporters junit

34. Karma!