neutron/neutron/tests/unit/common/test_rpc.py

346 lines
12 KiB
Python

# Copyright 2015 OpenStack Foundation.
# 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.
import copy
import fixtures
import mock
from oslo_config import cfg
import oslo_messaging as messaging
from oslo_messaging import conffixture as messaging_conffixture
from neutron.common import rpc
from neutron import context
from neutron.tests import base
CONF = cfg.CONF
CONF.import_opt('state_path', 'neutron.common.config')
class RPCFixture(fixtures.Fixture):
def _setUp(self):
self.trans = copy.copy(rpc.TRANSPORT)
self.noti_trans = copy.copy(rpc.NOTIFICATION_TRANSPORT)
self.noti = copy.copy(rpc.NOTIFIER)
self.all_mods = copy.copy(rpc.ALLOWED_EXMODS)
self.ext_mods = copy.copy(rpc.EXTRA_EXMODS)
self.addCleanup(self._reset_everything)
def _reset_everything(self):
rpc.TRANSPORT = self.trans
rpc.NOTIFICATION_TRANSPORT = self.noti_trans
rpc.NOTIFIER = self.noti
rpc.ALLOWED_EXMODS = self.all_mods
rpc.EXTRA_EXMODS = self.ext_mods
class TestRPC(base.DietTestCase):
def setUp(self):
super(TestRPC, self).setUp()
self.useFixture(RPCFixture())
@mock.patch.object(rpc, 'get_allowed_exmods')
@mock.patch.object(rpc, 'RequestContextSerializer')
@mock.patch.object(messaging, 'get_transport')
@mock.patch.object(messaging, 'get_notification_transport')
@mock.patch.object(messaging, 'Notifier')
def test_init(self, mock_not, mock_noti_trans, mock_trans, mock_ser,
mock_exmods):
notifier = mock.Mock()
transport = mock.Mock()
noti_transport = mock.Mock()
serializer = mock.Mock()
conf = mock.Mock()
mock_exmods.return_value = ['foo']
mock_trans.return_value = transport
mock_noti_trans.return_value = noti_transport
mock_ser.return_value = serializer
mock_not.return_value = notifier
rpc.init(conf)
mock_exmods.assert_called_once_with()
mock_trans.assert_called_once_with(conf, allowed_remote_exmods=['foo'],
aliases=rpc.TRANSPORT_ALIASES)
mock_noti_trans.assert_called_once_with(conf,
allowed_remote_exmods=['foo'],
aliases=rpc.TRANSPORT_ALIASES)
mock_not.assert_called_once_with(noti_transport,
serializer=serializer)
self.assertIsNotNone(rpc.TRANSPORT)
self.assertIsNotNone(rpc.NOTIFICATION_TRANSPORT)
self.assertIsNotNone(rpc.NOTIFIER)
def test_cleanup_transport_null(self):
rpc.NOTIFIER = mock.Mock()
rpc.NOTIFICATION_TRANSPORT = mock.Mock()
self.assertRaises(AssertionError, rpc.cleanup)
def test_cleanup_notification_transport_null(self):
rpc.TRANSPORT = mock.Mock()
rpc.NOTIFIER = mock.Mock()
self.assertRaises(AssertionError, rpc.cleanup)
def test_cleanup_notifier_null(self):
rpc.TRANSPORT = mock.Mock()
rpc.NOTIFICATION_TRANSPORT = mock.Mock()
self.assertRaises(AssertionError, rpc.cleanup)
def test_cleanup(self):
rpc.NOTIFIER = mock.Mock()
rpc.NOTIFICATION_TRANSPORT = mock.Mock()
rpc.TRANSPORT = mock.Mock()
trans_cleanup = mock.Mock()
not_trans_cleanup = mock.Mock()
rpc.TRANSPORT.cleanup = trans_cleanup
rpc.NOTIFICATION_TRANSPORT.cleanup = not_trans_cleanup
rpc.cleanup()
trans_cleanup.assert_called_once_with()
not_trans_cleanup.assert_called_once_with()
self.assertIsNone(rpc.TRANSPORT)
self.assertIsNone(rpc.NOTIFICATION_TRANSPORT)
self.assertIsNone(rpc.NOTIFIER)
def test_add_extra_exmods(self):
rpc.EXTRA_EXMODS = []
rpc.add_extra_exmods('foo', 'bar')
self.assertEqual(['foo', 'bar'], rpc.EXTRA_EXMODS)
def test_clear_extra_exmods(self):
rpc.EXTRA_EXMODS = ['foo', 'bar']
rpc.clear_extra_exmods()
self.assertEqual(0, len(rpc.EXTRA_EXMODS))
def test_get_allowed_exmods(self):
rpc.ALLOWED_EXMODS = ['foo']
rpc.EXTRA_EXMODS = ['bar']
exmods = rpc.get_allowed_exmods()
self.assertEqual(['foo', 'bar'], exmods)
@mock.patch.object(rpc, 'RequestContextSerializer')
@mock.patch.object(messaging, 'RPCClient')
def test_get_client(self, mock_client, mock_ser):
rpc.TRANSPORT = mock.Mock()
tgt = mock.Mock()
ser = mock.Mock()
mock_client.return_value = 'client'
mock_ser.return_value = ser
client = rpc.get_client(tgt, version_cap='1.0', serializer='foo')
mock_ser.assert_called_once_with('foo')
mock_client.assert_called_once_with(rpc.TRANSPORT,
tgt, version_cap='1.0',
serializer=ser)
self.assertEqual('client', client)
@mock.patch.object(rpc, 'RequestContextSerializer')
@mock.patch.object(messaging, 'get_rpc_server')
def test_get_server(self, mock_get, mock_ser):
rpc.TRANSPORT = mock.Mock()
ser = mock.Mock()
tgt = mock.Mock()
ends = mock.Mock()
mock_ser.return_value = ser
mock_get.return_value = 'server'
server = rpc.get_server(tgt, ends, serializer='foo')
mock_ser.assert_called_once_with('foo')
mock_get.assert_called_once_with(rpc.TRANSPORT, tgt, ends,
'eventlet', ser)
self.assertEqual('server', server)
def test_get_notifier(self):
rpc.NOTIFIER = mock.Mock()
mock_prep = mock.Mock()
mock_prep.return_value = 'notifier'
rpc.NOTIFIER.prepare = mock_prep
notifier = rpc.get_notifier('service', publisher_id='foo')
mock_prep.assert_called_once_with(publisher_id='foo')
self.assertEqual('notifier', notifier)
def test_get_notifier_null_publisher(self):
rpc.NOTIFIER = mock.Mock()
mock_prep = mock.Mock()
mock_prep.return_value = 'notifier'
rpc.NOTIFIER.prepare = mock_prep
notifier = rpc.get_notifier('service', host='bar')
mock_prep.assert_called_once_with(publisher_id='service.bar')
self.assertEqual('notifier', notifier)
class TestRequestContextSerializer(base.DietTestCase):
def setUp(self):
super(TestRequestContextSerializer, self).setUp()
self.mock_base = mock.Mock()
self.ser = rpc.RequestContextSerializer(self.mock_base)
self.ser_null = rpc.RequestContextSerializer(None)
def test_serialize_entity(self):
self.mock_base.serialize_entity.return_value = 'foo'
ser_ent = self.ser.serialize_entity('context', 'entity')
self.mock_base.serialize_entity.assert_called_once_with('context',
'entity')
self.assertEqual('foo', ser_ent)
def test_deserialize_entity(self):
self.mock_base.deserialize_entity.return_value = 'foo'
deser_ent = self.ser.deserialize_entity('context', 'entity')
self.mock_base.deserialize_entity.assert_called_once_with('context',
'entity')
self.assertEqual('foo', deser_ent)
def test_deserialize_entity_null_base(self):
deser_ent = self.ser_null.deserialize_entity('context', 'entity')
self.assertEqual('entity', deser_ent)
def test_serialize_context(self):
context = mock.Mock()
self.ser.serialize_context(context)
context.to_dict.assert_called_once_with()
@mock.patch.object(context, 'Context')
def test_deserialize_context(self, mock_con):
context = mock.Mock()
context.copy.return_value = {'foo': 'bar',
'user_id': 1,
'tenant_id': 1}
self.ser.deserialize_context(context)
mock_con.assert_called_once_with(1, 1, foo='bar')
@mock.patch.object(context, 'Context')
def test_deserialize_context_no_user_id(self, mock_con):
context = mock.Mock()
context.copy.return_value = {'foo': 'bar',
'user': 1,
'tenant_id': 1}
self.ser.deserialize_context(context)
mock_con.assert_called_once_with(1, 1, foo='bar')
@mock.patch.object(context, 'Context')
def test_deserialize_context_no_tenant_id(self, mock_con):
context = mock.Mock()
context.copy.return_value = {'foo': 'bar',
'user_id': 1,
'project_id': 1}
self.ser.deserialize_context(context)
mock_con.assert_called_once_with(1, 1, foo='bar')
@mock.patch.object(context, 'Context')
def test_deserialize_context_no_ids(self, mock_con):
context = mock.Mock()
context.copy.return_value = {'foo': 'bar'}
self.ser.deserialize_context(context)
mock_con.assert_called_once_with(None, None, foo='bar')
class ServiceTestCase(base.DietTestCase):
# the class cannot be based on BaseTestCase since it mocks rpc.Connection
def setUp(self):
super(ServiceTestCase, self).setUp()
self.host = 'foo'
self.topic = 'neutron-agent'
self.target_mock = mock.patch('oslo_messaging.Target')
self.target_mock.start()
self.messaging_conf = messaging_conffixture.ConfFixture(CONF)
self.messaging_conf.transport_driver = 'fake'
self.messaging_conf.response_timeout = 0
self.useFixture(self.messaging_conf)
self.addCleanup(rpc.cleanup)
rpc.init(CONF)
def test_operations(self):
with mock.patch('oslo_messaging.get_rpc_server') as get_rpc_server:
rpc_server = get_rpc_server.return_value
service = rpc.Service(self.host, self.topic)
service.start()
rpc_server.start.assert_called_once_with()
service.stop()
rpc_server.stop.assert_called_once_with()
rpc_server.wait.assert_called_once_with()
class TestConnection(base.DietTestCase):
def setUp(self):
super(TestConnection, self).setUp()
self.conn = rpc.Connection()
@mock.patch.object(messaging, 'Target')
@mock.patch.object(cfg, 'CONF')
@mock.patch.object(rpc, 'get_server')
def test_create_consumer(self, mock_get, mock_cfg, mock_tgt):
mock_cfg.host = 'foo'
server = mock.Mock()
target = mock.Mock()
mock_get.return_value = server
mock_tgt.return_value = target
self.conn.create_consumer('topic', 'endpoints', fanout=True)
mock_tgt.assert_called_once_with(topic='topic', server='foo',
fanout=True)
mock_get.assert_called_once_with(target, 'endpoints')
self.assertEqual([server], self.conn.servers)
def test_consume_in_threads(self):
self.conn.servers = [mock.Mock(), mock.Mock()]
servs = self.conn.consume_in_threads()
for serv in self.conn.servers:
serv.start.assert_called_once_with()
self.assertEqual(servs, self.conn.servers)
def test_close(self):
self.conn.servers = [mock.Mock(), mock.Mock()]
self.conn.close()
for serv in self.conn.servers:
serv.stop.assert_called_once_with()
serv.wait.assert_called_once_with()