karma.conf.js

var argv = require('yargs').argv;
var path = require('path');

var webpackConfig = require('./webpack.config');

module.exports = function(config) {
  config.set({
    basePath: '',
    frameworks: ['mocha', 'chai'],
    files: [
      'tests.webpack.js'
    ],

    preprocessors: {
      // add webpack as preprocessor
      'tests.webpack.js': ['webpack', 'sourcemap'],
    },

    webpack: webpackConfig,
    webpackServer: {
      noInfo: true
    },

    plugins: [
      'karma-mocha',
      'karma-chai',
      'karma-webpack',
      'karma-phantomjs-launcher',
      'karma-spec-reporter',
      'karma-sourcemap-loader'
    ],

    reporters: ['spec'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    browsers: ['PhantomJS'],
    singleRun: !argv.watch
  })
};