### Question:
DataObjectModelManager extends AbstractService implements IDataObjectModelManager { @Override public DataObjectModel getDataObjectModel(long dataObjectModelId) { return (DataObjectModel) this.getCacheWrapper().getModel(String.valueOf(dataObjectModelId)); }  void setDataModelDAO(IDataObjectModelDAO dataModelDAO); void setPageManager(IPageManager pageManager); void setDataObjectManager(IDataObjectManager dataObjectManager); void setCacheWrapper(IDataObjectModelCacheWrapper cacheWrapper); @Override void init(); @Override void addDataObjectModel(DataObjectModel model); @Override void removeDataObjectModel(DataObjectModel model); @Override void updateDataObjectModel(DataObjectModel model); @Override DataObjectModel getDataObjectModel(long dataObjectModelId); @Override List<DataObjectModel> getDataObjectModels(); @Override List<DataObjectModel> getModelsForDataObjectType(String dataType); @Override Map<String, List<IPage>> getReferencingPages(long modelId); @Override SmallDataType getDefaultUtilizer(long modelId); @Override SearcherDaoPaginatedResult<DataObjectModel> getDataObjectModels(List<FieldSearchFilter> filters); @Override List<Long> searchDataObjectModels(FieldSearchFilter[] filters);  }### Answer:
@Test public void testGetContentModel() { when(cacheWrapper.getModel(Mockito.anyString())).thenReturn(createModel(1, "ART")); DataObjectModel model = this.dataObjectModelManager.getDataObjectModel(1L); assertNotNull(model); }