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# -*- coding: utf-8 -*-
# Copyright (c) 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 socket
from unittest import mock
from testtools import testcase
from tooz import coordination
from tooz import tests
class TestMemcacheDriverFailures(testcase.TestCase):
FAKE_URL = "memcached://mocked-not-really-localhost"
@mock.patch('pymemcache.client.PooledClient')
def test_client_failure_start(self, mock_client_cls):
mock_client_cls.side_effect = socket.timeout('timed-out')
member_id = tests.get_random_uuid()
coord = coordination.get_coordinator(self.FAKE_URL, member_id)
self.assertRaises(coordination.ToozConnectionError, coord.start)
@mock.patch('pymemcache.client.PooledClient')
def test_client_failure_join(self, mock_client_cls):
mock_client = mock.MagicMock()
mock_client_cls.return_value = mock_client
member_id = tests.get_random_uuid()
coord = coordination.get_coordinator(self.FAKE_URL, member_id)
coord.start()
mock_client.gets.side_effect = socket.timeout('timed-out')
fut = coord.join_group(tests.get_random_uuid())
self.assertRaises(coordination.ToozConnectionError, fut.get)
@mock.patch('pymemcache.client.PooledClient')
def test_client_failure_leave(self, mock_client_cls):
mock_client = mock.MagicMock()
mock_client_cls.return_value = mock_client
member_id = tests.get_random_uuid()
coord = coordination.get_coordinator(self.FAKE_URL, member_id)
coord.start()
mock_client.gets.side_effect = socket.timeout('timed-out')
fut = coord.leave_group(tests.get_random_uuid())
self.assertRaises(coordination.ToozConnectionError, fut.get)
@mock.patch('pymemcache.client.PooledClient')
def test_client_failure_heartbeat(self, mock_client_cls):
mock_client = mock.MagicMock()
mock_client_cls.return_value = mock_client
member_id = tests.get_random_uuid()
coord = coordination.get_coordinator(self.FAKE_URL, member_id)
coord.start()
mock_client.set.side_effect = socket.timeout('timed-out')
self.assertRaises(coordination.ToozConnectionError, coord.heartbeat)
@mock.patch(
'tooz.coordination.CoordinationDriverCachedRunWatchers.run_watchers',
autospec=True)
@mock.patch('pymemcache.client.PooledClient')
def test_client_run_watchers_mixin(self, mock_client_cls,
mock_run_watchers):
mock_client = mock.MagicMock()
mock_client_cls.return_value = mock_client
member_id = tests.get_random_uuid()
coord = coordination.get_coordinator(self.FAKE_URL, member_id)
coord.start()
coord.run_watchers()
self.assertTrue(mock_run_watchers.called)
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