karma.conf.js

// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html

process = require('process');
process.env.CHROME_BIN = require('puppeteer').executablePath();

module.exports = function (config) {
  config.set({
    basePath: '',
    frameworks: ['jasmine', '@angular-devkit/build-angular'],
    plugins: [
      require('karma-jasmine'),
      require("karma-firefox-launcher"),
      require('karma-chrome-launcher'),
      require('karma-jasmine-html-reporter'),
      require('karma-coverage-istanbul-reporter'),
      require("karma-mocha-reporter"),
      require("karma-nyan-reporter"),
      require("karma-junit-reporter"),
      require('@angular-devkit/build-angular/plugins/karma')
    ],

    client: {
      clearContext: false, // leave Jasmine Spec Runner output visible in browser
      jasmine: {
        timeoutInterval: 30000
      }
    },

    coverageIstanbulReporter: {
      dir: require('path').join(__dirname, './coverage'),
      reports: ['html', 'lcovonly', 'text-summary', 'json-summary'],
      fixWebpackSourcePaths: true
    },

    nyanReporter: {
      suppressErrorReport: false,
      suppressErrorHighlighting: false,
      numberOfRainbowLines: 4,
      renderOnRunCompleteOnly: true
    },

    junitReporter: {
      outputDir: "./coverage/", // results will be saved as $outputDir/$browserName.xml
      outputFile: "JUNITX-test-report.xml", // if included, results will be saved as $outputDir/$browserName/$outputFile
      suite: "", // suite will become the package name attribute in xml testsuite element
      useBrowserName: false, // add browser name to report and classes names
      nameFormatter: undefined, // function (browser, result) to customize the name attribute in xml testcase element
      classNameFormatter: undefined, // function (browser, result) to customize the classname attribute in xml testcase element
      properties: {}, // key value pair of properties to add to the <properties> section of the report
      xmlVersion: null, // use '1' if reporting to be per SonarQube 6.2 XML format
    },

    customLaunchers: {
      ChromeHeadlessCI: {
        base: 'ChromeHeadless',
        flags: [
          '--no-sandbox',
          '--headless',
          '--disable-gpu',
          '--disable-translate',
          '--disable-extensions',
          '--disable-dev-shm-usage'
        ]
      }
    },

    reporters: ['progress', 'kjhtml', 'coverage-istanbul', 'nyan', 'junit'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['ChromeHeadlessCI'],
    browserDisconnectTimeout: 10000,
    browserDisconnectTolerance: 3,
    browserNoActivityTimeout: 150000,
    singleRun: true,
    restartOnFileChange: true
  });
};