360 lines
14 KiB
Python
360 lines
14 KiB
Python
# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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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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"""
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Unit Tests for remote procedure calls using queue
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"""
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import mock
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from oslo_concurrency import processutils
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from oslo_config import cfg
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from oslo_service import service as _service
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import testtools
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from nova import exception
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from nova import manager
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from nova import objects
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from nova import rpc
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from nova import service
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from nova import test
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from nova.tests.unit import utils
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test_service_opts = [
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cfg.HostAddressOpt("test_service_listen",
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default='127.0.0.1',
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help="Host to bind test service to"),
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cfg.IntOpt("test_service_listen_port",
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default=0,
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help="Port number to bind test service to"),
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]
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CONF = cfg.CONF
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CONF.register_opts(test_service_opts)
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class FakeManager(manager.Manager):
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"""Fake manager for tests."""
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def test_method(self):
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return 'manager'
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class ExtendedService(service.Service):
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def test_method(self):
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return 'service'
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class ServiceManagerTestCase(test.NoDBTestCase):
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"""Test cases for Services."""
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def test_message_gets_to_manager(self):
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serv = service.Service('test',
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'test',
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'test',
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'nova.tests.unit.test_service.FakeManager')
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self.assertEqual('manager', serv.test_method())
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def test_override_manager_method(self):
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serv = ExtendedService('test',
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'test',
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'test',
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'nova.tests.unit.test_service.FakeManager')
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self.assertEqual('service', serv.test_method())
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def test_service_with_min_down_time(self):
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# TODO(hanlind): This really tests code in the servicegroup api.
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self.flags(service_down_time=10, report_interval=10)
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service.Service('test',
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'test',
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'test',
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'nova.tests.unit.test_service.FakeManager')
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self.assertEqual(25, CONF.service_down_time)
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class ServiceTestCase(test.NoDBTestCase):
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"""Test cases for Services."""
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def setUp(self):
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super(ServiceTestCase, self).setUp()
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self.host = 'foo'
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self.binary = 'nova-fake'
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self.topic = 'fake'
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def test_create(self):
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# NOTE(vish): Create was moved out of mox replay to make sure that
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# the looping calls are created in StartService.
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app = service.Service.create(host=self.host, binary=self.binary,
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topic=self.topic,
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manager='nova.tests.unit.test_service.FakeManager')
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self.assertTrue(app)
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def test_repr(self):
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# Test if a Service object is correctly represented, for example in
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# log files.
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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exp = "<Service: host=foo, binary=nova-fake, " \
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"manager_class_name=nova.tests.unit.test_service.FakeManager>"
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self.assertEqual(exp, repr(serv))
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@mock.patch.object(objects.Service, 'create')
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@mock.patch.object(objects.Service, 'get_by_host_and_binary')
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def test_init_and_start_hooks(self, mock_get_by_host_and_binary,
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mock_create):
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mock_get_by_host_and_binary.return_value = None
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mock_manager = mock.Mock()
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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serv.manager = mock_manager
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serv.manager.service_name = self.topic
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serv.manager.additional_endpoints = []
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serv.start()
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# init_host is called before any service record is created
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serv.manager.init_host.assert_called_once_with()
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mock_get_by_host_and_binary.assert_called_once_with(mock.ANY,
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self.host, self.binary)
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mock_create.assert_called_once_with()
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# pre_start_hook is called after service record is created,
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# but before RPC consumer is created
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serv.manager.pre_start_hook.assert_called_once_with()
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# post_start_hook is called after RPC consumer is created.
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serv.manager.post_start_hook.assert_called_once_with()
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@mock.patch('nova.objects.service.Service.get_by_host_and_binary')
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def test_start_updates_version(self, mock_get_by_host_and_binary):
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# test that the service version gets updated on services startup
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service_obj = mock.Mock()
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service_obj.binary = 'fake-binary'
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service_obj.host = 'fake-host'
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service_obj.version = -42
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mock_get_by_host_and_binary.return_value = service_obj
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serv = service.Service(self.host, self.binary, self.topic,
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'nova.tests.unit.test_service.FakeManager')
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serv.start()
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# test service version got updated and saved:
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self.assertEqual(1, service_obj.save.call_count)
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self.assertEqual(objects.service.SERVICE_VERSION, service_obj.version)
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@mock.patch.object(objects.Service, 'create')
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@mock.patch.object(objects.Service, 'get_by_host_and_binary')
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def _test_service_check_create_race(self, ex,
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mock_get_by_host_and_binary,
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mock_create):
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mock_manager = mock.Mock()
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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class TestException(Exception):
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pass
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mock_get_by_host_and_binary.side_effect = [None, TestException()]
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mock_create.side_effect = ex
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serv.manager = mock_manager
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self.assertRaises(TestException, serv.start)
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serv.manager.init_host.assert_called_with()
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mock_get_by_host_and_binary.assert_has_calls([
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mock.call(mock.ANY, self.host, self.binary),
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mock.call(mock.ANY, self.host, self.binary)])
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mock_create.assert_called_once_with()
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def test_service_check_create_race_topic_exists(self):
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ex = exception.ServiceTopicExists(host='foo', topic='bar')
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self._test_service_check_create_race(ex)
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def test_service_check_create_race_binary_exists(self):
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ex = exception.ServiceBinaryExists(host='foo', binary='bar')
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self._test_service_check_create_race(ex)
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@mock.patch.object(objects.Service, 'create')
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@mock.patch.object(objects.Service, 'get_by_host_and_binary')
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@mock.patch.object(_service.Service, 'stop')
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def test_parent_graceful_shutdown(self, mock_stop,
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mock_get_by_host_and_binary,
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mock_create):
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mock_get_by_host_and_binary.return_value = None
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mock_manager = mock.Mock()
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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serv.manager = mock_manager
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serv.manager.service_name = self.topic
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serv.manager.additional_endpoints = []
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serv.start()
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serv.manager.init_host.assert_called_once_with()
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mock_get_by_host_and_binary.assert_called_once_with(mock.ANY,
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self.host,
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self.binary)
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mock_create.assert_called_once_with()
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serv.manager.pre_start_hook.assert_called_once_with()
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serv.manager.post_start_hook.assert_called_once_with()
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serv.stop()
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mock_stop.assert_called_once_with()
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@mock.patch('nova.servicegroup.API')
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@mock.patch('nova.objects.service.Service.get_by_host_and_binary')
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def test_parent_graceful_shutdown_with_cleanup_host(
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self, mock_svc_get_by_host_and_binary, mock_API):
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mock_manager = mock.Mock()
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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serv.manager = mock_manager
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serv.manager.additional_endpoints = []
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serv.start()
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serv.manager.init_host.assert_called_with()
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serv.stop()
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serv.manager.cleanup_host.assert_called_with()
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@mock.patch('nova.servicegroup.API')
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@mock.patch('nova.objects.service.Service.get_by_host_and_binary')
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@mock.patch.object(rpc, 'get_server')
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def test_service_stop_waits_for_rpcserver(
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self, mock_rpc, mock_svc_get_by_host_and_binary, mock_API):
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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serv.start()
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serv.stop()
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serv.rpcserver.start.assert_called_once_with()
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serv.rpcserver.stop.assert_called_once_with()
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serv.rpcserver.wait.assert_called_once_with()
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def test_reset(self):
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serv = service.Service(self.host,
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self.binary,
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self.topic,
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'nova.tests.unit.test_service.FakeManager')
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with mock.patch.object(serv.manager, 'reset') as mock_reset:
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serv.reset()
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mock_reset.assert_called_once_with()
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class TestWSGIService(test.NoDBTestCase):
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def setUp(self):
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super(TestWSGIService, self).setUp()
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self.stub_out('nova.wsgi.Loader.load_app',
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lambda *a, **kw: mock.MagicMock())
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@mock.patch('nova.objects.Service.get_by_host_and_binary')
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@mock.patch('nova.objects.Service.create')
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def test_service_start_creates_record(self, mock_create, mock_get):
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mock_get.return_value = None
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test_service = service.WSGIService("test_service")
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test_service.start()
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self.assertTrue(mock_create.called)
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@mock.patch('nova.objects.Service.get_by_host_and_binary')
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@mock.patch('nova.objects.Service.create')
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def test_service_start_does_not_create_record(self, mock_create, mock_get):
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test_service = service.WSGIService("test_service")
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test_service.start()
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self.assertFalse(mock_create.called)
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@mock.patch('nova.objects.Service.get_by_host_and_binary')
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def test_service_random_port(self, mock_get):
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test_service = service.WSGIService("test_service")
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test_service.start()
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self.assertNotEqual(0, test_service.port)
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test_service.stop()
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def test_workers_set_default(self):
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test_service = service.WSGIService("osapi_compute")
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self.assertEqual(test_service.workers, processutils.get_worker_count())
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def test_workers_set_good_user_setting(self):
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CONF.set_override('osapi_compute_workers', 8)
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test_service = service.WSGIService("osapi_compute")
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self.assertEqual(test_service.workers, 8)
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def test_openstack_compute_api_workers_set_default(self):
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test_service = service.WSGIService("openstack_compute_api_v2")
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self.assertEqual(test_service.workers, processutils.get_worker_count())
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def test_openstack_compute_api_workers_set_good_user_setting(self):
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CONF.set_override('osapi_compute_workers', 8)
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test_service = service.WSGIService("openstack_compute_api_v2")
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self.assertEqual(test_service.workers, 8)
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@testtools.skipIf(not utils.is_ipv6_supported(), "no ipv6 support")
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@mock.patch('nova.objects.Service.get_by_host_and_binary')
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def test_service_random_port_with_ipv6(self, mock_get):
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CONF.set_default("test_service_listen", "::1")
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test_service = service.WSGIService("test_service")
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test_service.start()
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self.assertEqual("::1", test_service.host)
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self.assertNotEqual(0, test_service.port)
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test_service.stop()
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@mock.patch('nova.objects.Service.get_by_host_and_binary')
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def test_reset_pool_size_to_default(self, mock_get):
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test_service = service.WSGIService("test_service")
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test_service.start()
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# Stopping the service, which in turn sets pool size to 0
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test_service.stop()
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self.assertEqual(test_service.server._pool.size, 0)
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# Resetting pool size to default
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test_service.reset()
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test_service.start()
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self.assertEqual(test_service.server._pool.size,
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CONF.wsgi.default_pool_size)
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class TestLauncher(test.NoDBTestCase):
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@mock.patch.object(_service, 'launch')
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def test_launch_app(self, mock_launch):
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service._launcher = None
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service.serve(mock.sentinel.service)
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mock_launch.assert_called_once_with(mock.ANY,
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mock.sentinel.service,
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workers=None,
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restart_method='mutate')
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@mock.patch.object(_service, 'launch')
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def test_launch_app_with_workers(self, mock_launch):
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service._launcher = None
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service.serve(mock.sentinel.service, workers=mock.sentinel.workers)
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mock_launch.assert_called_once_with(mock.ANY,
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mock.sentinel.service,
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workers=mock.sentinel.workers,
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restart_method='mutate')
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@mock.patch.object(_service, 'launch')
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def test_launch_app_more_than_once_raises(self, mock_launch):
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service._launcher = None
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service.serve(mock.sentinel.service)
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self.assertRaises(RuntimeError, service.serve, mock.sentinel.service)
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