deb-mistral/mistral/tests/unit/test_coordination.py
LingxianKong 021824341b Add coordination feature to mistral service
Add mistrai-api, mistral-engine, mistral-executor services to their
service group respectively when they start up, so that we can retrieve
their information through service api which will be implemented in
subsequent patch.

Change-Id: Ibfcc17b35b9d2e408888b7d1cb64e63f2b32a90d
Partially-Implements: blueprint mistral-service-api
2015-08-11 21:54:33 +08:00

148 lines
4.3 KiB
Python

# Copyright 2015 Huawei Technologies Co., Ltd.
#
# 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 oslo_config import cfg
from mistral import coordination
from mistral.tests import base
class ServiceCoordinatorTest(base.BaseTest):
def setUp(self):
super(ServiceCoordinatorTest, self).setUp()
def test_start(self):
cfg.CONF.set_default(
'backend_url',
'zake://',
'coordination'
)
coordinator = coordination.ServiceCoordinator('fake_id')
coordinator.start()
self.assertTrue(coordinator.is_active())
def test_start_without_backend(self):
cfg.CONF.set_default('backend_url', None, 'coordination')
coordinator = coordination.ServiceCoordinator()
coordinator.start()
self.assertFalse(coordinator.is_active())
def test_stop_not_active(self):
cfg.CONF.set_default('backend_url', None, 'coordination')
coordinator = coordination.ServiceCoordinator()
coordinator.start()
coordinator.stop()
self.assertFalse(coordinator.is_active())
def test_stop(self):
cfg.CONF.set_default(
'backend_url',
'zake://',
'coordination'
)
coordinator = coordination.ServiceCoordinator()
coordinator.start()
coordinator.stop()
self.assertFalse(coordinator.is_active())
def test_join_group_not_active(self):
cfg.CONF.set_default('backend_url', None, 'coordination')
coordinator = coordination.ServiceCoordinator()
coordinator.start()
coordinator.join_group('fake_group')
members = coordinator.get_members('fake_group')
self.assertFalse(coordinator.is_active())
self.assertEqual(0, len(members))
def test_join_group_and_get_members(self):
cfg.CONF.set_default(
'backend_url',
'zake://',
'coordination'
)
coordinator = coordination.ServiceCoordinator(my_id='fake_id')
coordinator.start()
coordinator.join_group('fake_group')
members = coordinator.get_members('fake_group')
self.assertEqual(1, len(members))
self.assertItemsEqual(('fake_id',), members)
def test_join_group_and_leave_group(self):
cfg.CONF.set_default(
'backend_url',
'zake://',
'coordination'
)
coordinator = coordination.ServiceCoordinator(my_id='fake_id')
coordinator.start()
coordinator.join_group('fake_group')
members_before = coordinator.get_members('fake_group')
coordinator.leave_group('fake_group')
members_after = coordinator.get_members('fake_group')
self.assertEqual(1, len(members_before))
self.assertEqual(set(['fake_id']), members_before)
self.assertEqual(0, len(members_after))
self.assertEqual(set([]), members_after)
class ServiceTest(base.BaseTest):
def setUp(self):
super(ServiceTest, self).setUp()
# Re-intialize the global service coordinator object, in order to use
# new coordination configuration.
coordination.cleanup_service_coordinator()
@mock.patch('mistral.utils.get_process_identifier', return_value='fake_id')
def test_register_membership(self, mock_get_identifier):
cfg.CONF.set_default('backend_url', 'zake://', 'coordination')
srv = coordination.Service('fake_group')
srv.register_membership()
self.addCleanup(srv.stop)
srv_coordinator = coordination.get_service_coordinator()
self.assertIsNotNone(srv_coordinator)
self.assertTrue(srv_coordinator.is_active())
members = srv_coordinator.get_members('fake_group')
mock_get_identifier.assert_called_once_with()
self.assertEqual(set(['fake_id']), members)