text: #
  # Licensed to the Apache Software Foundation (ASF) under one
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  # 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 unittest
  from unittest.mock import Mock, patch
  
  from airflow.models import DAG, DagRun
  from airflow.ti_deps.deps.dagrun_exists_dep import DagrunRunningDep
  from airflow.utils.state import State
  
  
  class TestDagrunRunningDep(unittest.TestCase):
  
      @patch('airflow.models.DagRun.find', return_value=())
      def test_dagrun_doesnt_exist(self, mock_dagrun_find):
          """
          Task instances without dagruns should fail this dep
          """
          dag = DAG('test_dag', max_active_runs=2)
          ti = Mock(task=Mock(dag=dag), get_dagrun=Mock(return_value=None))
          self.assertFalse(DagrunRunningDep().is_met(ti=ti))
  
      def test_dagrun_exists(self):
          """
          Task instances with a dagrun should pass this dep
          """
          dagrun = DagRun(state=State.RUNNING)
          ti = Mock(get_dagrun=Mock(return_value=dagrun))
          self.assertTrue(DagrunRunningDep().is_met(ti=ti))
  