anchor.diff:    test('runApp should bootstrap from a ComponentFactory', () async {
       component = runApp(ng.HelloWorldComponentNgFactory);
       verifyDomAndStyles();
  -    await verifyTestability();
  +    verifyTestability();
     });
   
     test('runApp should allow overriding ExceptionHandler', () async {
  
positive.code:   /// Verify the `Testability` interface is working for this application.
    ///
    /// **NOTE**: We will use the JS API, since that is how users access it.
    Future<void> verifyTestability() async {
      expect(component.injector.get(Testability), isNotNull);
      JsTestability jsTestability = getAngularTestability(
        rootDomContainer.children.first,
  
negative.code:       },
      );
      verifyDomAndStyles(innerText: 'Hello Async World!');
      verifyTestability();
    });
  
    // i.e. "bootstrapStatic".
    test('runAppLegacy should bootstrap from a Type', () async {
      component = runAppLegacy<HelloWorldComponent>(HelloWorldComponent);
      verifyDomAndStyles();
      verifyTestability();
    });
  
    test('ApplicationRef should be injectable in a user-application', () async {
  