text: // This file is required by karma.conf.js and loads recursively all the .spec and framework files
  
  import 'zone.js/dist/zone-testing';
  import { getTestBed } from '@angular/core/testing';
  import {
    BrowserDynamicTestingModule,
    platformBrowserDynamicTesting
  } from '@angular/platform-browser-dynamic/testing';
  
  declare const require: any;
  
  // First, initialize the Angular testing environment.
  getTestBed().initTestEnvironment(
    BrowserDynamicTestingModule,
    platformBrowserDynamicTesting()
  );
  // Then we find all the tests.
  const context = require.context('./', true, /\.spec\.ts$/);
  // And load the modules.
  context.keys().map(context);
  