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# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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 heat.rpc import worker_api as rpc_api
from heat.rpc import worker_client as rpc_client
from heat.tests import common
class WorkerClientTest(common.HeatTestCase):
def setUp(self):
super(WorkerClientTest, self).setUp()
self.fake_engine_id = 'fake-engine-id'
def test_make_msg(self):
method = 'sample_method'
kwargs = {'a': '1',
'b': '2'}
result = method, kwargs
self.assertEqual(
result,
rpc_client.WorkerClient.make_msg(method, **kwargs))
@mock.patch('heat.common.messaging.get_rpc_client',
return_value=mock.Mock())
def test_cast(self, rpc_client_method):
# Mock the rpc client
mock_rpc_client = rpc_client_method.return_value
# Create the WorkerClient
worker_client = rpc_client.WorkerClient()
rpc_client_method.assert_called_once_with(
version=rpc_client.WorkerClient.BASE_RPC_API_VERSION,
topic=rpc_api.TOPIC)
self.assertEqual(mock_rpc_client,
worker_client._client,
"Failed to create RPC client")
# Check cast in default version
mock_cnxt = mock.Mock()
method = 'sample_method'
kwargs = {'a': '1',
'b': '2'}
msg = method, kwargs
# go with default version
return_value = worker_client.cast(mock_cnxt, msg)
self.assertIsNone(return_value)
mock_rpc_client.cast.assert_called_with(mock_cnxt,
method,
**kwargs)
# Check cast in given version
version = '1.3'
return_value = worker_client.cast(mock_cnxt, msg, version)
self.assertIsNone(return_value)
mock_rpc_client.prepare.assert_called_once_with(version=version)
mock_rpc_client.cast.assert_called_once_with(mock_cnxt,
method,
**kwargs)
def test_cancel_check_resource(self):
mock_stack_id = 'dummy-stack-id'
mock_cnxt = mock.Mock()
method = 'cancel_check_resource'
kwargs = {'stack_id': mock_stack_id}
mock_rpc_client = mock.MagicMock()
mock_cast = mock.MagicMock()
with mock.patch('heat.common.messaging.get_rpc_client') as mock_grc:
mock_grc.return_value = mock_rpc_client
mock_rpc_client.prepare.return_value = mock_cast
wc = rpc_client.WorkerClient()
ret_val = wc.cancel_check_resource(mock_cnxt, mock_stack_id,
self.fake_engine_id)
# ensure called with fanout=True
mock_grc.assert_called_with(
version=wc.BASE_RPC_API_VERSION,
topic=rpc_api.TOPIC,
server=self.fake_engine_id)
self.assertIsNone(ret_val)
mock_rpc_client.prepare.assert_called_with(
version='1.3')
# ensure correct rpc method is called
mock_cast.cast.assert_called_with(mock_cnxt, method, **kwargs)
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