karma.conf.js

const webpackConfig = require('./webpack.test.config.js')

module.exports = function (config) {
  const browsers = ['PhantomJS','Chrome']
  var configuration = {
    frameworks: ['jasmine'],
    plugins: [
      'karma-jasmine',
      'karma-sourcemap-loader',
      'karma-webpack',
      'karma-chrome-launcher',
      'karma-phantomjs-launcher',
      'karma-firefox-launcher',
      'karma-coverage',
      'karma-spec-reporter'
    ],
    basePath: '',
    browsers: [browsers[0]],
    customLaunchers: {
      TRAVIS_CHROME: {
        base: 'Chrome',
        flags: ['--no-sandbox']
      }
    },
    files: [
      'node_modules/babel-polyfill/dist/polyfill.js',
      'node_modules/phantomjs-polyfill/bind-polyfill.js', {
        pattern: './test/**/*.spec.js',
        watched: false,
        included: true,
        served: true
      }
    ],
    preprocessors: {
      './test/**/*.spec.js': ['webpack', 'sourcemap']
    },

    webpack: webpackConfig,

    webpackServer: {
      noInfo: true
    },
    reporters: ['spec'],

    coverageReporter: {
      dir: 'test/coverage/',
      reporters: [{
        type: 'html',
        subdir: 'html'
      }, {
        type: 'lcov',
        subdir: 'lcov'
      }, {
        type: 'text-summary'
      }]
    },

    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    singleRun: false
  }

  if (process.env.TRAVIS) {
    configuration.browsers = [browsers[0]]
  }

  config.set(configuration)
}