def METHOD_NAME(self):
    # Clone dataset meta repo first.
    MsDataset.clone_meta(
        dataset_work_dir=self.test_meta_dir,
        dataset_id=os.path.join(self.namespace, self.dataset_name))
    with open(os.path.join(self.test_meta_dir, ModelFile.README),
              'a') as f:
        f.write('\nThis is a line for unit test.')
    MsDataset.upload_meta(
        dataset_work_dir=self.test_meta_dir,
        commit_message='Update for unit test.')