Karma Resources

Karma is a test runner for testing JavaScript and TypeScript.  

Install Karma
yarn global add karma-cli

Run all tests
karma start 

Testing Angular 2 Apps with Jasmine and Karma
https://www.youtube.com/watch?v=yG4FH60fhUE

Unit Testing Recipes for Angular 2
http://slides.com/victormejia/unit-testing-ng2#/ 

Example karma.conf.js

This file uses the new Angular CLI (the namespace has changed).  

// Karma configuration file, see link for more information

// https://karma-runner.github.io/0.13/config/configuration-file.html

module.exports = function (config) {

config.set({

basePath: '',

frameworks: ['jasmine', '@angular/cli'],

plugins: [

require('karma-jasmine'),

require('karma-chrome-launcher'),

require('karma-jasmine-html-reporter'),

require('karma-coverage-istanbul-reporter'),

require('@angular/cli/plugins/karma')

],

client:{

clearContext: false // leave Jasmine Spec Runner output visible in browser

},

files: [

{ pattern: './src/test.ts', watched: false }

],

preprocessors: {

'./src/test.ts': ['@angular/cli']

},

mime: {

'text/x-typescript': ['ts','tsx']

},

coverageIstanbulReporter: {

reports: [ 'html', 'lcovonly' ],

fixWebpackSourcePaths: true

},

angularCli: {

environment: 'dev'

},

reporters: config.angularCli && config.angularCli.codeCoverage

? ['progress', 'coverage-istanbul']

: ['progress', 'kjhtml'],

port: 9876,

colors: true,

logLevel: config.LOG_INFO,

autoWatch: true,

browsers: ['Chrome'],

singleRun: false

});

};