karma.conf.js

// Karma configuration
// Generated on Fri Oct 25 2019 15:27:13 GMT+0200 (Central European Summer Time)

module.exports = function(config) {
  config.set({
    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '',

    client: {
      // run tests in a new window
      useIframe: false
    },

    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['browserify', 'jasmine'],

    browserify: {
      transform: [['babelify', { plugins: ['transform-async-to-generator'] }]]
    },

    // list of files / patterns to load in the browser
    files: [
      'node_modules/babel-polyfill/dist/polyfill.js',
      'test/e2e/*'
    ],

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

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'src/**/*.js': ['browserify'],
      'test/e2e/**/*.js': ['browserify']
    },

    babelPreprocessor: {
      options: {
        "presets": [
          "es2015"
        ]
      }
    },

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

    // 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: ['Chrome'],
    browsers: ['ChromeHeadless_1920x1080'],

    customLaunchers: {
      ChromeHeadless_1920x1080: {
        base: 'ChromeHeadless',
        flags: ['--window-size=1920,1080']
      }
    },

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

    // Concurrency level
    // how many browser should be started simultaneous
    concurrency: 1
  });
};