docstr: Tests behavior when there is no TF_CONFIG set.
docstr_tok: ["Tests","behavior","when","there","is","no","TF_CONFIG","set","."]
code: def test_no_tf_config(self):
      """Tests behavior when there is no TF_CONFIG set."""
      cluster_config, save_dir = task.get_worker_behavior_info(
          "some/dir/"
      )
      self.assertEqual(save_dir, "some/dir/")
      self.assertEqual(cluster_config, "")
  
file_path: ddsp/ddsp/training/docker/task_test.py
imports: import os
  from unittest import mock
  from ddsp.training.docker import task
  import tensorflow.compat.v2
label_desc: Use image node_id 1 for calling the GetWorkerBehaviorInfoTest obj's underlying member method code with example usage: obj.test_no_tf_config() without return types