93 lines
3.3 KiB
Python
93 lines
3.3 KiB
Python
# Copyright 2014 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from neutron.agent.l3 import event_observers
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from neutron.services import advanced_service
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from neutron.tests import base
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class FakeServiceA(advanced_service.AdvancedService):
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pass
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class FakeServiceB(advanced_service.AdvancedService):
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pass
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class TestAdvancedService(base.BaseTestCase):
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def setUp(self):
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super(TestAdvancedService, self).setUp()
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self.agent = mock.Mock()
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self.test_observers = event_observers.L3EventObservers()
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# Ensure no instances for each test
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FakeServiceA._instance = None
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FakeServiceB._instance = None
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def test_create_service(self):
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"""Test agent saved and service added to observer list."""
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my_service = FakeServiceA.instance(self.agent)
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self.test_observers.add(my_service)
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self.assertIn(my_service, self.test_observers.observers)
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self.assertEqual(self.agent, my_service.l3_agent)
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def test_service_is_singleton(self):
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"""Test that two services of same time use same instance."""
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a1 = FakeServiceA.instance(self.agent)
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a2 = FakeServiceA.instance(self.agent)
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self.assertIs(a1, a2)
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def test_shared_observers_for_different_services(self):
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"""Test different service type instances created.
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The services are unique instances, with different agents, but
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sharing the same observer list.
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"""
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a = FakeServiceA.instance(self.agent)
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self.test_observers.add(a)
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self.assertEqual(self.agent, a.l3_agent)
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self.assertIn(a, self.test_observers.observers)
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another_agent = mock.Mock()
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b = FakeServiceB.instance(another_agent)
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self.test_observers.add(b)
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self.assertNotEqual(a, b)
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self.assertEqual(another_agent, b.l3_agent)
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self.assertIn(b, self.test_observers.observers)
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self.assertEqual(2, len(self.test_observers.observers))
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def test_unique_observers_for_different_services(self):
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"""Test different service types with different observer lists.
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The services are unique instances, shared the same agent, but
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are using different observer lists.
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"""
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a = FakeServiceA.instance(self.agent)
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self.test_observers.add(a)
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other_observers = event_observers.L3EventObservers()
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b = FakeServiceB.instance(self.agent)
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other_observers.add(b)
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self.assertNotEqual(a, b)
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self.assertEqual(self.agent, a.l3_agent)
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self.assertIn(a, self.test_observers.observers)
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self.assertEqual(1, len(self.test_observers.observers))
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self.assertEqual(self.agent, b.l3_agent)
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self.assertIn(b, other_observers.observers)
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self.assertEqual(1, len(other_observers.observers))
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