anchor.diff:        var data = view.data;
         navigator.navigate('second',{});
   
  -      data['param'] = 'bozi_sluha';
  +      data['param'] = 'vacuumcleaner';
       });
   
     });
  
positive.code:     test('navigate to same view with different params', () {
        //given
        var view = new DummyView();
        var params = {'param': 'bozi_pan'};
        var history = new Mock();
        var navigator = new PageNavigator(new MockRouter(), history);
  
  
negative.code:     test('navigate to same view with different params', () {
        //given
        var route = new Route("/dummy/{param}/");
        var paramsOld = {'param': 'cute_kitty'};
        var paramsNew = {'param': 'sad_kitty'};
        var pathNew = route.path(paramsNew);
  
        var view = new SpyView();
  