text: # Copyright (c) 2016 IBM Corp.
  #
  # All Rights Reserved.
  #
  #    Licensed 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.
  
  from unittest import mock
  
  from neutron.db import segments_db
  from neutron.tests import base
  
  
  class TestSegmentsDb(base.BaseTestCase):
  
      def test_get_networks_segments_with_empty_networks(self):
          context = mock.MagicMock()
          net_segs = segments_db.get_networks_segments(context, [])
          self.assertFalse(context.session.query.called)
          self.assertEqual({}, net_segs)
  