karma.conf.js

// Karma configuration
// Generated on Wed Oct 05 2016 15:34:05 GMT-0700 (PDT)
var webpack = require('webpack')
var path = require('path')

var BROWSERS = (process.env.TRAVIS) ? ['Chrome_travis_ci', 'Firefox'] : ['Chrome', 'Firefox', 'Safari'];

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', 'sinon', 'chai'],


    // list of files / patterns to load in the browser
    files: [
      'test/index.js'
    ],


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


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


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

    webpack: {
      devtool: 'inline-source-map',
      module: {
        loaders: [
          {
            test: /\.js?$/,
            exclude: /node_modules/,
            loader: 'babel',
            query: {
              presets: ['airbnb']
            }
          },
          {
            test: /\.js?$/,
            include: path.resolve(__dirname, 'src'),
            loader: 'istanbul-instrumenter',
            query: {
              esModules: true
            }
          }
        ]
      },
      plugins: [
        new webpack.DefinePlugin({
          'process.env.NODE_ENV': JSON.stringify('test')
        })
      ],
      resolve: {
        extensions: ['', '.jsx', '.js']
      },
      externals: {
        'cheerio': 'window',
        'react/addons': true,
        'react/lib/ExecutionEnvironment': true,
        'react/lib/ReactContext': true
      }
    },

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

    webpackServer: {
      noInfo: true
    },


    // 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: false,


    customLaunchers: {
        Chrome_travis_ci: {
            base: 'Chrome',
            flags: ['--no-sandbox']
        }
    },


    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: BROWSERS,


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

    // Concurrency level
    // how many browser should be started simultaneous
    concurrency: Infinity
  })
}