karma.conf

var webpack = require('webpack');

module.exports = function(config) {


  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    // basePath: '',

    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: [ 'mocha', 'chai' ], //use the mocha test framework

    client: {
      mocha: {
        reporter: 'html', // change Karma's debug.html to the mocha web reporter
        ui: 'bdd'
      }
    },

    // list of files / patterns to load in the browser
    files: [
     './node_modules/phantomjs-polyfill/bind-polyfill.js',
      'test-loader.js'
    ],

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

    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['spec'],

    // web server port
    // port: 9876,

    // enable / disable colors in the output (reporters and logs)
    // colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_ERROR,

    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    //browsers: ['Chrome', 'Firefox', 'PhantomJS'],
    browsers: ['Chrome'],

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false,


    webpack: {
      devtool: 'eval',
      resolve: {
        modulesDirectories: ['.', 'node_modules', './src', './src/js'],
        extensions: ['', '.js', '.jsx', '.csv']
      },

      plugins: [

        new webpack.IgnorePlugin(/\.jpe?g$|\.gif$|\.png$|\.svg$|\.woff$|\.woff2$|\.eot$|\.ttf$|\.wav$|\.ico$|.css$|.json$/),
        new webpack.IgnorePlugin(/^\.\/lang$/, /moment$/),
        new webpack.NormalModuleReplacementPlugin(/^sinon$/,  __dirname + '/src/js/vendor/sinon-1.15.4.js'),
      ],

      module: {
        noParse: [
          /sinon/
        ],

        loaders: [
          {
            test: /\.jsx?$/,
            exclude: /(node_modules|bower_components|vendor)/,
            loader: 'babel',
            query: {
              optional: ['runtime', 'es7.classProperties', 'es7.decorators'],
              cacheDirectory: true,
            }
          }
        ]
      }
    }
  });
};