karma.conf.js

const path = require('path');

var reportOutput;
if (process.env.TRAVIS) {
  reportOutput = [{type: 'lcovonly', dir: 'coverage/'}];
} else {
  reportOutput = [
    {type: 'text'},
    {type: 'text-summary'},
    {type: 'html', dir: 'coverage/', subdir: 'report/'}
  ];
}


const webpackConfig = {
  devtool: 'inline-source-map',
  module: {
    loaders: [
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: path.resolve(__dirname, 'node_modules'),
        query: {
          plugins: ['transform-decorators-legacy', 'transform-regenerator'],
          presets: ['react', 'es2015', 'stage-1']
        }
      },
      { test: /\.css$/, loader: 'style-loader!css-loader' },
      { test: /\.less$/, loader: 'style-loader!css-loader!less-loader' },
      { test: /\.gif$/, loader: 'url-loader?mimetype=image/png' },
      { test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: 'url-loader?limit=10000&mimetype=application/font-woff' },
      { test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: 'file-loader?name=[name].[ext]' }
    ]
  },
  externals: {
    'react/addons': true,
    'react/lib/ExecutionEnvironment': true,
    'react/lib/ReactContext': true
  }
};



module.exports = function(config) {
  config.set({
    basePath: '',
    browsers: ['PhantomJS'],
    frameworks: ['mocha'],
    files: [
      'node_modules/babel-polyfill/dist/polyfill.js',
      'test/test-grabber.js'
    ],

    preprocessors: {
      'test/test-grabber.js': ['webpack', 'sourcemap']
    },

    reporters: ['nyan', 'coverage'],

    nyanReporter: {
      suppressErrorHighlighting: true,
    },

    coverageReporter: {
      reporters: reportOutput,
    },

    webpack: webpackConfig,

    webpackServer: {
      noInfo: true
    },

    browserConsoleLogOptions: {
      level: 'log',
      terminal: true
    },

    client: {
      captureConsole: false
    },

    browserNoActivityTimeout: 15000,
    
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    singleRun: false,
  });
};