karma.base.conf.js

/**
 * Copyright 2018, 2020, 2022 Optimizely
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

  //plugins
  plugins: ['karma-mocha', 'karma-webpack', require('karma-browserstack-launcher')],

  webpack: {
    mode: 'production',
    module: {
      rules: [
        {
          test: /\.[tj]s$/,
          use: 'ts-loader',
          exclude: /node_modules/,
        },
      ],
    },
    resolve: {
      extensions: ['.ts', '.js'],
    },
  },

  //browserStack setup
  browserStack: {
    username: process.env.BROWSER_STACK_USERNAME,
    accessKey: process.env.BROWSER_STACK_ACCESS_KEY,
  },

  // to avoid DISCONNECTED messages when connecting to BrowserStack
  browserDisconnectTimeout: 10000, // default 2000
  browserDisconnectTolerance: 1, // default 0
  browserNoActivityTimeout: 4 * 60 * 1000, //default 10000
  captureTimeout: 4 * 60 * 1000, //default 60000

  // define browsers
  customLaunchers: {
    bs_chrome_mac: {
      base: 'BrowserStack',
      os: 'OS X',
      os_version: 'Mojave',
      browserName: 'Chrome',
      browser_version: '102.0',
      browser: 'Chrome',
    },
    bs_edge: {
      base: 'BrowserStack',
      os: 'Windows',
      os_version: '10',
      browserName: 'Edge',
      browser_version: '84.0',
      browser: 'Edge',
    },
    bs_firefox: {
      base: 'BrowserStack',
      os: 'Windows',
      browser: 'Firefox',
      os_version: '10',
      browserName: 'Firefox',
      browser_version: '91.0',
    },

    bs_opera_mac: {
      base: 'BrowserStack',
      browser: 'Opera',
      os_version: 'Mojave',
      browserName: 'Opera',
      browser: 'Opera',
      browser_version: '76.0',
      os: 'OS X',
    },
    bs_safari: {
      base: 'BrowserStack',
      os: 'OS X',
      os_version: 'Catalina',
      browserName: 'Safari',
      browser_version: '13.0',
      browser: 'Safari',
      device: null,
    },
  },

  browsers: ['bs_chrome_mac', 'bs_edge', 'bs_firefox', 'bs_opera_mac', 'bs_safari'],

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

  // 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: {
    './lib/**/*tests.js': ['webpack'],
  },

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

  // web server port
  port: 9876,

  // enable / disable colors in the output (reporters and logs)
  colors: true,

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

  // 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,
};