text: module.exports = function(config) {
  
      var appBase = 'app/core'; // transpiled app JS and map files
      var appSrcBase = 'app/core'; // app source TS files
      var appAssets = 'base/app/core'; // component assets fetched by Angular's compiler
  
      // Testing helpers (optional) are conventionally in a folder called `testing`
      var testingBase = 'testing/'; // transpiled test JS and map files
      var testingSrcBase = 'testing/'; // test source TS files
  
      config.set({
          basePath: '',
          frameworks: ['jasmine'],
  
          plugins: [
              require('karma-jasmine'),
              require('karma-chrome-launcher'),
              require('karma-jasmine-html-reporter')
          ],
  
          client: {
              builtPaths: [appSrcBase, testingBase], // add more spec base paths as needed
              clearContext: false // leave Jasmine Spec Runner output visible in browser
          },
  
          customLaunchers: {
              // From the CLI. Not used here but interesting
              // chrome setup for travis CI using chromium
              Chrome_travis_ci: {
                  base: 'Chrome',
                  flags: ['--no-sandbox']
              }
          },
  
          files: [
              // System.js for module loading
              'node_modules/systemjs/dist/system.src.js',
  
              // Polyfills
              'node_modules/core-js/client/shim.js',
              'node_modules/reflect-metadata/Reflect.js',
  
              // zone.js
              'node_modules/zone.js/dist/zone.js',
              'node_modules/zone.js/dist/long-stack-trace-zone.js',
              'node_modules/zone.js/dist/proxy.js',
              'node_modules/zone.js/dist/sync-test.js',
              'node_modules/zone.js/dist/jasmine-patch.js',
              'node_modules/zone.js/dist/async-test.js',
              'node_modules/zone.js/dist/fake-async-test.js',
  
              // RxJs
              { pattern: 'node_modules/rxjs/**/*.js', included: false, watched: false },
              { pattern: 'node_modules/rxjs/**/*.js.map', included: false, watched: false },
  
              // Paths loaded via module imports:
              // Angular itself
              { pattern: 'node_modules/@angular/**/*.js', included: false, watched: false },
              { pattern: 'node_modules/@angular/**/*.js.map', included: false, watched: false },
  
              { pattern: 'systemjs.config.js', included: false, watched: false },
              { pattern: 'systemjs.config.extras.js', included: false, watched: false },
              'karma-test-shim.js', // optionally extend SystemJS mapping e.g., with barrels
  
              // transpiled application & spec code paths loaded via module imports
              { pattern: appBase + '**/*.js', included: false, watched: true },
              { pattern: testingBase + '**/*.js', included: false, watched: true },
  
  
              // Asset (HTML & CSS) paths loaded via Angular's component compiler
              // (these paths need to be rewritten, see proxies section)
              { pattern: appBase + '**/*.html', included: false, watched: true },
              { pattern: appBase + '**/*.css', included: false, watched: true },
  
              // Paths for debugging with source maps in dev tools
              { pattern: appSrcBase + '**/*.ts', included: false, watched: false },
              { pattern: appBase + '**/*.js.map', included: false, watched: false },
              { pattern: testingSrcBase + '**/*.ts', included: false, watched: false },
              { pattern: testingBase + '**/*.js.map', included: false, watched: false }
          ],
  
          // Proxied base paths for loading assets
          proxies: {
              // required for component assets fetched by Angular's compiler
              "/app/": appAssets
          },
  
          exclude: [],
          preprocessors: {},
          reporters: ['progress', 'kjhtml'],
  
          port: 9876,
          colors: true,
          logLevel: config.LOG_INFO,
          autoWatch: true,
          browsers: ['Chrome'],
          singleRun: false
      })
  }