keystone/keystone/tests/unit/common/test_provider_api.py

65 lines
2.4 KiB
Python

# Copyright 2012 OpenStack Foundation
#
# 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 uuid
from keystone.common import manager
from keystone.common import provider_api
from keystone.tests import unit
class TestProviderAPIRegistry(unit.BaseTestCase):
def setUp(self):
super(TestProviderAPIRegistry, self).setUp()
provider_api.ProviderAPIs._clear_registry_instances()
self.addCleanup(provider_api.ProviderAPIs._clear_registry_instances)
def _create_manager_instance(self, provides_api=None):
provides_api = provides_api or '%s_api' % uuid.uuid4().hex
class TestManager(manager.Manager):
_provides_api = provides_api
driver_namespace = '_TEST_NOTHING'
return TestManager(driver_name=None)
def test_registry_lock(self):
provider_api.ProviderAPIs.lock_provider_registry()
self.assertRaises(RuntimeError, self._create_manager_instance)
def test_registry_duplicate(self):
test_manager = self._create_manager_instance()
self.assertRaises(
provider_api.DuplicateProviderError,
self._create_manager_instance,
provides_api=test_manager._provides_api)
def test_provider_api_mixin(self):
test_manager = self._create_manager_instance()
class Testing(provider_api.ProviderAPIMixin, object):
pass
instance = Testing()
self.assertIs(test_manager, getattr(instance,
test_manager._provides_api))
def test_manager_api_reference(self):
manager = self._create_manager_instance()
second_manager = self._create_manager_instance()
self.assertIs(second_manager, getattr(manager,
second_manager._provides_api))
self.assertIs(manager, getattr(second_manager,
manager._provides_api))