initialSlotMapping.put(requiredSlots[0], resolver);
slotMappingInitializer = new TestSlotMappingInitializer(
initialSlotMapping);
DefaultVisualizationModel model = createViewModel(new ResourceByUriMultiCategorizer());
Resource resource = createResource(1);
resource.putValue(property1, 1);
model.getContentResourceSet().add(resource);