code: def test_execution_subprocess_unlimited_parallelism(self):
      with mock.patch.object(
          settings,
          "EXECUTE_TASKS_NEW_PYTHON_INTERPRETER",
          new_callable=mock.PropertyMock,
      ) as option:
          option.return_value = True
          self.execution_parallelism_subprocess(parallelism=0)
  
imports: from __future__ import annotations
  import datetime
  import subprocess
  from unittest import mock
  import pytest
  from airflow import settings
  from airflow.exceptions import AirflowException
  from airflow.executors.local_executor import LocalExecutor
  from airflow.utils.state import State
label_desc: Use image node_id 8 for calling the TestLocalExecutor obj's underlying member method code with example usage: obj.test_execution_subprocess_unlimited_parallelism() without return types