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test_cluster.py
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/
test_cluster.py
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# Copyright 2012 Rackspace Hosting, Inc.
#
# 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 mock
from silverberg.test.util import BaseTestCase
from silverberg.client import CQLClient
from silverberg.cluster import RoundRobinCassandraCluster
class RoundRobinCassandraClusterTests(BaseTestCase):
def setUp(self):
self.cql_client_patcher = mock.patch("silverberg.cluster.CQLClient")
self.CQLClient = self.cql_client_patcher.start()
self.addCleanup(self.cql_client_patcher.stop)
self.clients = []
def _CQLClient(*args, **kwargs):
c = mock.Mock(CQLClient)
self.clients.append(c)
return c
self.CQLClient.side_effect = _CQLClient
def test_round_robin_execute(self):
cluster = RoundRobinCassandraCluster(['one', 'two', 'three'], 'keyspace')
for client, arg in [(1, 'foo'), (2, 'bar'), (0, 'baz'), (1, 'bax')]:
result = cluster.execute(arg)
self.clients[client].execute.assert_called_with(arg)
self.assertEqual(self.clients[client].execute.return_value, result)
def test_disconnect(self):
cluster = RoundRobinCassandraCluster(['one', 'two', 'three'], 'keyspace')
cluster.disconnect()
for client in self.clients:
client.disconnect.assert_called_with()