text: # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  #   http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied.  See the License for the
  # specific language governing permissions and limitations
  # under the License.
  import os
  from contextlib import contextmanager
  
  import pytest
  
  from airflow.models import Connection
  from airflow.utils.process_utils import patch_environ
  from tests.test_utils.gcp_system_helpers import LEVELDB_DAG_FOLDER, GoogleSystemTest
  
  CONNECTION_TYPE = os.environ.get('CONNECTION_TYPE', 'leveldb')
  LEVELDB_CONNECTION_ID = os.environ.get('AIRFLOW_CONN_LEVELDB_DEFAULT', 'leveldb_default')
  
  
  @contextmanager
  def provide_leveldb_connection():
      """Context manager that provides a temporary value of AIRFLOW_CONN_LEVELDB_DEFAULT connection"""
      conn = Connection(conn_id=LEVELDB_CONNECTION_ID, conn_type=CONNECTION_TYPE)
      with patch_environ({f"AIRFLOW_CONN_{conn.conn_id.upper()}": conn.get_uri()}):
          yield
  
  
  @pytest.mark.system("google.leveldb")
  class LevelDBSystemTest(GoogleSystemTest):
      @provide_leveldb_connection()
      def test_run_example_dag(self):
          self.run_dag('example_leveldb', LEVELDB_DAG_FOLDER)
  