karma.conf.js

// Karma configuration
// Generated on Fri Apr 28 2017 20:17:45 GMT+0200 (Romance Daylight Time)

module.exports = function(config) {
  const isHeadless = !!process.env
    .HEADLESS

  const isDev = !!process.env.DEV

  const browsers = isHeadless
    ? [
        'ChromeHeadless',
        'FirefoxHeadless'
      ]
    : ['Chrome', 'Firefox']

  config.set({
    customLaunchers: {
      FirefoxHeadless: {
        base: 'Firefox',
        flags: ['-headless']
      }
    },
    frameworks: [
      'jasmine',
      'karma-typescript'
    ],
    files: [
      'src/**/*.ts',
      'tests/**/*.ts'
    ],
    preprocessors: {
      '**/*.ts': 'karma-typescript'
    },
    karmaTypescriptConfig: {
      compilerOptions: {
        module: 'commonjs',
        target: 'es6'
      },
      exclude: ['node_modules']
    },

    reporters: [
      'spec',
      'karma-typescript',
      'coverage'
    ],

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