code: def test_running(self):
      local_executor_mock = mock.MagicMock()
      k8s_executor_mock = mock.MagicMock()
      local_kubernetes_executor = LocalKubernetesExecutor(
          local_executor_mock, k8s_executor_mock
      )
  
      local_running_tasks = {("dag_id", "task_id", "2020-08-30", 1)}
      k8s_running_tasks = {}
  
      local_executor_mock.running = local_running_tasks
      k8s_executor_mock.running = k8s_running_tasks
  
      assert (
          local_kubernetes_executor.running
          == local_running_tasks.union(k8s_running_tasks)
      )
      assert len(local_kubernetes_executor.running) == 1
  
file_path: airflow/tests/providers/cncf/kubernetes/executors/test_local_kubernetes_executor.py
imports: from __future__ import annotations
  from unittest import mock
  from airflow.callbacks.callback_requests import CallbackRequest
  from airflow.configuration import conf
  from airflow.executors.local_executor import LocalExecutor
  from airflow.providers.cncf.kubernetes.executors.local_kubernetes_executor import LocalKubernetesExecutor
label_desc: Use image node_id 9 for calling the TestLocalKubernetesExecutor obj's underlying member method code with example usage: obj.test_running() without return types