docstr: Test get_hook function works as expected.
docstr_tok: ["Test","get_hook","function","works","as","expected","."]
code: def test_get_hook(self, mock_hook):
      """Test get_hook function works as expected."""
      self.operator.hook
      mock_hook.assert_called_once_with(
          adb_spark_conn_id=MOCK_ADB_SPARK_CONN_ID, region=MOCK_REGION
      )
  
file_path: airflow/tests/providers/alibaba/cloud/operators/test_analyticdb_spark.py
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from airflow.exceptions import AirflowException
  from airflow.providers.alibaba.cloud.operators.analyticdb_spark import AnalyticDBSparkBaseOperator, AnalyticDBSparkBatchOperator, AnalyticDBSparkSQLOperator
label_desc: Use image node_id 2 for calling the TestAnalyticDBSparkBaseOperator obj's underlying member method code with example usage: obj.test_get_hook(mock_hook) without return types