anchor.diff:  
             expect(comp1.future, completion(isTrue));
           });
  -      });/*
  +      });
       });
   
       group('setView', () {
  
positive.code:             ..maxZoom = 5).addTo(map);
            expect(called, isFalse);
          });
        });
      });
  
      group('removeLayer', () {
  
negative.code:             ..minZoom = 0
              ..maxZoom = 10).addTo(map);
            map.onZoomLevelsChange.listen((_) {
  //            called = true;
              if (!comp1.isCompleted) {
                comp1.complete(true);
              }
              comp2.complete(true);
            });
  
            expect(comp1.future, completion(isFalse));
            new Future.delayed(new Duration(milliseconds: 33), c1).then((_) {
              new TileLayer('{z}{x}{y}', new TileLayerOptions()
                ..minZoom = 0
                ..maxZoom = 15).addTo(map);
              expect(comp2.future, completion(isTrue));
              new Future.delayed(new Duration(milliseconds: 33), c2);
            });
          });
        });
  
        /*group('when a new layer with the same or lower zoomlevel coverage as the current layer is added to a map', () {
          test('fires no zoomlevelschange event', () {
            new TileLayer('{z}{x}{y}', new TileLayerOptions()
              ..minZoom = 0
  