karma.conf.js

// Karma configuration file, see link for more information
// https://karma-runner.github.io/0.13/config/configuration-file.html
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-chrome-launcher'),
      require('karma-jasmine-html-reporter'),
      require('karma-coverage-istanbul-reporter'),
      require('@angular-devkit/build-angular/plugins/karma'),
      require('karma-junit-reporter')
    ],
    client:{
      clearContext: false // leave Jasmine Spec Runner output visible in browser
    },
    files: [
      
      { pattern: 'config/*.json', watched: false, included: false, served: true, nocache: false },
      { pattern: 'i18n/*.json', watched: false, included: false, served: true, nocache: false }
    ],
    proxies: {
      '/config/': '/base/config/',
      '/i18n/': '/base/i18n/'
    },
    preprocessors: {
      
    },
    mime: {
      'text/x-typescript': ['ts','tsx']
    },
    coverageIstanbulReporter: {
      dir: require('path').join(__dirname, 'coverage'), reports: [ 'html', 'lcovonly' ],
      fixWebpackSourcePaths: true
    },
    reporters: config.angularCli && config.angularCli.codeCoverage ? ['progress', 'coverage-istanbul'] : ['progress', 'kjhtml', 'dots', 'junit'],
    junitReporter: {
      outputDir: 'unittests',
      outputFile: 'test-results.xml'
    },
 
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['ChromeHeadlessNoSandbox'],
	customLaunchers: {
      ChromeHeadlessNoSandbox: {
        base: 'ChromeHeadless',
        flags: ['--no-sandbox']
      }
    },
    singleRun: false
  });
};