### Question:
MockDataObjectsServiceImpl implements DataObjectsService { @Override public List<DataObject> loadDataObjects(final WorkspaceProject workspaceProject) { return Collections.emptyList(); }  @Override List<DataObject> loadDataObjects(final WorkspaceProject workspaceProject);  }### Answer:
@Test public void testLoadDataObjectsWithNullWorkspaceProject() { assertThat(dataObjectsService.loadDataObjects(null)).isEmpty(); }
@Test public void testLoadDataObjectsWithNonNullWorkspaceProject() { assertThat(dataObjectsService.loadDataObjects(workspaceProject)).isEmpty(); }