ScenarioGridPanel extends GridLienzoPanel implements NodeMouseOutHandler,
                                                                  NodeMouseWheelHandler,
                                                                  ScrollHandler { @Override public void onNodeMouseWheel(NodeMouseWheelEvent nodeMouseWheelEvent) { getScenarioGrid().getModel().destroyAllTextAreaDOMElementFactoryResources(); }  void addHandlers(final ScenarioSimulationGridPanelClickHandler clickHandler,
                            final ScenarioSimulationGridPanelMouseMoveHandler mouseMoveHandler); ScenarioGridLayer getScenarioGridLayer(); ScenarioGrid getScenarioGrid(); void setEventBus(EventBus eventBus); void select(); @Override void onNodeMouseOut(NodeMouseOutEvent event); @Override void onScroll(ScrollEvent scrollEvent); @Override void onNodeMouseWheel(NodeMouseWheelEvent nodeMouseWheelEvent); @Override void onResize(); void unregister(); void synchronizeFactMappingsWidths(); void ensureCellIsSelected();  }
@Test public void onNodeMouseWheel() { scenarioGridPanelSpy.onNodeMouseWheel(nodeMouseWheelEvent); verify(scenarioGridModelMock, times(1)).destroyAllTextAreaDOMElementFactoryResources(); }