DataSetDefExplorerScreen { void newDataSet() { placeManager.goTo("DataSetDefWizard"); }  @OnStartup void onStartup(PlaceRequest placeRequest); @OnClose void onClose(); @WorkbenchPartTitle String getTitle(); @WorkbenchPartView IsWidget getView(); @WorkbenchMenu Menus getMenu();  }
@Test public void testNewDataSet() { presenter.newDataSet(); verify(placeManager, times(1)).goTo("DataSetDefWizard"); }