karma.config.js

/** Reference: http://karma-runner.github.io/0.12/config/configuration-file.html */
module.exports = function karmaConfig (config) {
	config.set({
		plugins: [
			require('karma-webpack'),
			require('karma-sourcemap-loader'),
			require('karma-mocha'),
			require('karma-mocha-reporter'),
			require('karma-nyan-reporter'),
			require('karma-threshold-reporter'),
			require('karma-coverage'),
			require('karma-phantomjs-launcher')
		],
		logLevel: config.LOG_DEBUG,  /** Log our errors */

		client: {
			captureConsole: true
		},

		frameworks: [

			/**
			* Reference: https://github.com/karma-runner/karma-jasmine
			* Set framework to jasmine
			*/
			'mocha'
			],

		// reporters: [

		//   /**
		//    * Reference: https://github.com/mlex/karma-spec-reporter
		//    * Set reporter to print detailed results to console
		//    */
		//   'progress',

		//   /**
		//    * Reference: https://github.com/karma-runner/karma-coverage
		//    * Output code coverage files
		//    */
		//   'coverage'
		// ],

		reporters: [ 'mocha' ],

		files: [
		/** Grab all files in the app folder that contain .spec. */
		'./src/tests.webpack.js'
		/** each file acts as entry point for the webpack configuration */
		],

		preprocessors: {

			/**
			 * Reference: http://webpack.github.io/docs/testing.html
			 * Reference: https://github.com/webpack/karma-webpack
			 * Convert files with webpack and load sourcemaps
			 */
			 './src/tests.webpack.js': ['webpack', 'sourcemap']
		 },

		 browsers: ['PhantomJS'],

		 singleRun: false,

		 /** Configure code coverage reporter */
		 coverageReporter: {
			dir: 'coverage',
			reporters: [
			{type: 'html', subdir: 'html'}
			],
			check: {
				statements: 50,
				branches: 50,
				functions: 50,
				lines: 50
			},
			watermarks: {
				statements: [30, 50],
				functions: [30, 50],
				branches: [30, 50],
				lines: [30, 50]
			}
		},

		thresholdReporter: {
		 statements: 50,
		 branches: 50,
		 functions: 50,
		 lines: 50
	 },


	 webpack: require('./webpack.config'),

	 /** Hide webpack build information from output */
	 webpackMiddleware: {
		noInfo: 'errors-only'
	}
});
};