text: Error.stackTraceLimit = Infinity;
  
  require('core-js');
  require('zone.js/dist/zone');
  require('zone.js/dist/long-stack-trace-zone');
  require('zone.js/dist/proxy');
  require('zone.js/dist/sync-test');
  require('zone.js/dist/jasmine-patch');
  require('zone.js/dist/async-test');
  require('zone.js/dist/fake-async-test');
  require('zone.js/dist/zone-patch-rxjs-fake-async');
  require('rxjs');
  
  const testing = require('@angular/core/testing');
  const browser = require('@angular/platform-browser-dynamic/testing');
  
  testing.TestBed.initTestEnvironment(
      browser.BrowserDynamicTestingModule,
      browser.platformBrowserDynamicTesting()
  );
  
  function requireAll(requireContext) {
      return requireContext.keys().map(requireContext);
  }
  
  const testContext = require.context('./src', true, /\.spec\.ts$/);
  requireAll(testContext);