code: def test_kubernetes_executor_knows_its_queue(self):
      celery_executor_mock = mock.MagicMock()
      k8s_executor_mock = mock.MagicMock()
      CeleryKubernetesExecutor(celery_executor_mock, k8s_executor_mock)
  
      assert k8s_executor_mock.kubernetes_queue == conf.get(
          "celery_kubernetes_executor", "kubernetes_queue"
      )
  
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from airflow.callbacks.callback_requests import CallbackRequest
  from airflow.configuration import conf
  from airflow.providers.celery.executors.celery_executor import CeleryExecutor
  from airflow.providers.celery.executors.celery_kubernetes_executor import CeleryKubernetesExecutor
  from airflow.providers.cncf.kubernetes.executors.kubernetes_executor import KubernetesExecutor
label_desc: Use image node_id 20 for calling the TestCeleryKubernetesExecutor obj's underlying member method code with example usage: obj.test_kubernetes_executor_knows_its_queue() without return types