karma.conf.js

// test entry file
var testIndex = './test/test.js'
var path = require('path')
var webpack = require('./webpack.config')
var preLoaders = webpack.module.preLoaders || []
// only files in lib
preLoaders.push({
  include: [path.resolve('lib')],
  loader:'istanbul-instrumenter'
})
webpack.module.preLoaders = preLoaders

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'],


    // list of files / patterns to load in the browser
    files: [
      testIndex
    ],

    // list of files to exclude
    exclude: [
    ],

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'test/test.js': ['webpack']
    },

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


    // 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_INFO,


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


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

    webpack: {
      devtool: 'eval-source-map',
      module: webpack.module
    },

    webpackMiddleware: {
        noInfo: true
    },
    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: false,
    coverageReporter: {
      dir: 'coverage/',
      reporters: [
        { type: 'text' },
        { type: 'html', subdir: 'html' },
        { type: 'lcovonly', subdir: 'lcov' },
        { type: 'cobertura', subdir: 'cobertura' }
      ]
    },
    plugins: [
      'karma-mocha',
      'karma-webpack',
      'karma-coverage',
      'karma-firefox-launcher',
      'karma-wrap-preprocessor'
    ]
  });
};