karma.conf.js

'use strict'

const path = require('path')

const customLaunchers = {
  sl_chrome: {
    base: 'SauceLabs',
    browserName: 'chrome',
    platform: 'Windows 10',
    version: '51.0'
  },
  sl_firefox: {
    base: 'SauceLabs',
    browserName: 'firefox',
    platform: 'Windows 10',
    version: '47.0'
  },
  sl_ie10: {
    base: 'SauceLabs',
    browserName: 'internet explorer',
    platform: 'Windows 7',
    version: '10.0',
  },
  sl_ie11: {
    base: 'SauceLabs',
    browserName: 'internet explorer',
    platform: 'Windows 10',
    version: '11.0',
  },
  sl_edge: {
    base: 'SauceLabs',
    browserName: 'MicrosoftEdge',
    platform: 'Windows 10',
    version: '13.10586'
  },
  sl_safari: {
    base: 'SauceLabs',
    browserName: 'safari',
    platform: 'OS X 10.11',
    version: '9.0',
  },
}

const isTravis   = process.env.TRAVIS === 'true'
const isFirstJob = /\.1$/.test(process.env.TRAVIS_JOB_NUMBER)

const browsers = ['PhantomJS']
if (isTravis && isFirstJob) {
  Array.prototype.push.apply(browsers, Object.keys(customLaunchers))
}

module.exports = function(config) {

  config.set({
    basePath: '',
    files: [
      'test/**/*.js',
    ],
    exclude: [],
    preprocessors: {
      'test/**/*.js': ['webpack', 'sourcemap'],
    },

    frameworks: ['mocha'],
    reporters: ['mocha', 'saucelabs'],

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

    sauceLabs: {
      public: 'public',
    },
    concurrency: isTravis ? 5 : Infinity,

    webpack: {
      devtool: 'inline-source-map',
      module: {
        rules: [],
      },
      resolveLoader: {
        alias: {
          'arraybuffer': path.join(__dirname, './'),
        },
      },
      resolve: {
        extensions: ['.js', '.json']
      },
      mode: 'development',
    },
    webpackMiddleware: {
      noInfo: true,
    },
  })
}