def test_instance_query_dml(self, mock_hook):
     mock_hook.return_value.execute_dml.return_value = None
     op = CloudSpannerInstanceDatabaseQueryOperator(project_id=PROJECT_ID,
                                                    instance_id=INSTANCE_ID,
                                                    database_id=DB_ID,
                                                    query=INSERT_QUERY,
                                                    task_id="id")
     op.execute(None)
     mock_hook.assert_called_once_with(gcp_conn_id="google_cloud_default")
     mock_hook.return_value.execute_dml.assert_called_once_with(
         project_id=PROJECT_ID,
         instance_id=INSTANCE_ID,
         database_id=DB_ID,
         queries=[INSERT_QUERY])
 def test_instance_query_missing_project_id(self, mock_hook):
     mock_hook.return_value.execute_sql.return_value = None
     op = CloudSpannerInstanceDatabaseQueryOperator(instance_id=INSTANCE_ID,
                                                    database_id=DB_ID,
                                                    query=INSERT_QUERY,
                                                    task_id="id")
     result = op.execute(None)  # pylint: disable=assignment-from-no-return
     mock_hook.assert_called_once_with(gcp_conn_id="google_cloud_default")
     mock_hook.return_value.execute_dml.assert_called_once_with(
         project_id=None,
         instance_id=INSTANCE_ID,
         database_id=DB_ID,
         queries=[INSERT_QUERY])
     self.assertIsNone(result)