senlin/senlin/tests/unit/test_rpc_client.py

130 lines
4.5 KiB
Python

# 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.
"""
Unit Tests for senlin.rpc.client
"""
from unittest import mock
from senlin.common import messaging
from senlin.rpc import client as rpc_client
from senlin.tests.unit.common import base
from senlin.tests.unit.common import utils
class EngineRpcAPITestCase(base.SenlinTestCase):
def setUp(self):
messaging.setup("fake://", optional=True)
self.addCleanup(messaging.cleanup)
self.context = utils.dummy_context()
# self.stubs = stubout.StubOutForTesting()
self.rpcapi = rpc_client.EngineClient()
super(EngineRpcAPITestCase, self).setUp()
@mock.patch.object(messaging, 'get_rpc_client')
def test_call(self, mock_client):
client = mock.Mock()
mock_client.return_value = client
method = 'fake_method'
req = mock.Mock()
rpcapi = rpc_client.EngineClient()
# with no version
res = rpcapi.call(self.context, method, req)
self.assertEqual(client, rpcapi._client)
client.call.assert_called_once_with(self.context, 'fake_method',
req=req)
self.assertEqual(res, client.call.return_value)
@mock.patch.object(messaging, 'get_rpc_client')
def test_call_with_version(self, mock_client):
client = mock.Mock()
mock_client.return_value = client
method = 'fake_method'
req = mock.Mock()
rpcapi = rpc_client.EngineClient()
# with version
res = rpcapi.call(self.context, method, req, version='123')
rpcapi._client.prepare.assert_called_once_with(version='123')
new_client = client.prepare.return_value
new_client.call.assert_called_once_with(self.context, 'fake_method',
req=req)
self.assertEqual(res, new_client.call.return_value)
@mock.patch.object(messaging, 'get_rpc_client')
def test_cast(self, mock_client):
client = mock.Mock()
mock_client.return_value = client
method = 'fake_method'
kwargs = {'key': 'value'}
rpcapi = rpc_client.EngineClient()
msg = rpcapi.make_msg(method, **kwargs)
# with no version
res = rpcapi.cast(self.context, msg)
self.assertEqual(client, rpcapi._client)
client.cast.assert_called_once_with(self.context, 'fake_method',
key='value')
self.assertEqual(res, client.cast.return_value)
# with version
res = rpcapi.cast(self.context, msg, version='123')
client.prepare.assert_called_once_with(version='123')
new_client = client.prepare.return_value
new_client.cast.assert_called_once_with(self.context, 'fake_method',
key='value')
self.assertEqual(res, new_client.cast.return_value)
def _test_engine_api(self, method, rpc_method, **kwargs):
ctxt = utils.dummy_context()
expected_retval = 'foo' if method == 'call' else None
kwargs.pop('version', None)
if 'expected_message' in kwargs:
expected_message = kwargs['expected_message']
del kwargs['expected_message']
else:
expected_message = self.rpcapi.make_msg(method, **kwargs)
cast_and_call = [
'profile_delete',
'policy_delete',
'cluster_delete',
'node_delete',
'receiver_delete',
'webhook_delete',
]
if rpc_method == 'call' and method in cast_and_call:
kwargs['cast'] = False
mock_rpc_method = self.patchobject(self.rpcapi, rpc_method,
return_value=expected_retval)
retval = getattr(self.rpcapi, method)(ctxt, **kwargs)
self.assertEqual(expected_retval, retval)
expected_args = [ctxt, expected_message, mock.ANY]
actual_args, _ = mock_rpc_method.call_args
for expected_arg, actual_arg in zip(expected_args, actual_args):
self.assertEqual(expected_arg, actual_arg)