message: Add the missing DatasetNodename test for MapAndBatchDatasetOpTest
diff: @@ -282,6 +282,12 @@ std::vector<GetNextTestCase<MapAndBatchDatasetParams>> GetNextTestCases() {
  ITERATOR_GET_NEXT_TEST_P(MapAndBatchDatasetOpTest, MapAndBatchDatasetParams,
  GetNextTestCases())
  +TEST_F(MapAndBatchDatasetOpTest, DatasetNodeName) {
  + auto dataset_params = MapAndBatchDatasetParams1();
  + TF_ASSERT_OK(Initialize(dataset_params));
  + TF_ASSERT_OK(CheckDatasetNodeName(dataset_params.node_name()));
  +}
  +
  TEST_F(MapAndBatchDatasetOpTest, DatasetTypeString) {
  auto dataset_params = MapAndBatchDatasetParams1();
  TF_ASSERT_OK(Initialize(dataset_params));
  