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# 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 oslo_concurrency import lockutils
from oslo_log import log as logging
import oslotest.base
from designate.common.decorators import lock
from designate import exceptions
from designate.objects import record
from designate.objects import zone
from designate import utils
LOG = logging.getLogger(__name__)
class FakeCoordination:
def get_lock(self, name):
return lockutils.lock(name)
class FakeService:
def __init__(self):
self.zone_lock_local = lock.ZoneLockLocal()
self.coordination = FakeCoordination()
class CentralDecoratorTests(oslotest.base.BaseTestCase):
def setUp(self):
super().setUp()
self.context = mock.Mock()
self.service = FakeService()
def test_synchronized_zone_exception_raised(self):
@lock.synchronized_zone()
def mock_get_zone(cls, current_index, zone_obj):
self.assertEqual(
{'zone-%s' % zone_obj.id}, cls.zone_lock_local._held
)
if current_index % 3 == 0:
raise exceptions.ZoneNotFound()
for index in range(9):
try:
mock_get_zone(
self.service, index, zone.Zone(id=utils.generate_uuid())
)
except exceptions.ZoneNotFound:
pass
def test_synchronized_new_zone_with_recursion(self):
@lock.synchronized_zone(new_zone=True)
def mock_create_zone(cls, context):
self.assertEqual({'create-new-zone'}, cls.zone_lock_local._held)
mock_create_record(
cls, context, zone.Zone(id=utils.generate_uuid())
)
@lock.synchronized_zone()
def mock_create_record(cls, context, zone_obj):
self.assertIn('zone-%s' % zone_obj.id, cls.zone_lock_local._held)
self.assertIn('create-new-zone', cls.zone_lock_local._held)
mock_create_zone(
self.service, self.context
)
def test_synchronized_zone_recursive_decorator_call(self):
@lock.synchronized_zone()
def mock_create_record(cls, context, record_obj):
self.assertEqual(
{'zone-%s' % record_obj.zone_id}, cls.zone_lock_local._held
)
mock_get_zone(cls, context, zone.Zone(id=record_obj.zone_id))
@lock.synchronized_zone()
def mock_get_zone(cls, context, zone_obj):
self.assertEqual(
{'zone-%s' % zone_obj.id}, cls.zone_lock_local._held
)
mock_create_record(
self.service, self.context,
record_obj=record.Record(zone_id=utils.generate_uuid())
)
mock_get_zone(
self.service, self.context,
zone_obj=zone.Zone(id=utils.generate_uuid())
)
def test_synchronized_zone_raises_exception_when_no_zone_provided(self):
@lock.synchronized_zone(new_zone=False)
def mock_not_creating_new_zone(cls, context, record_obj):
pass
self.assertRaisesRegex(
Exception,
'Failed to determine zone id for synchronized operation',
mock_not_creating_new_zone, self.service, mock.Mock(), None
)
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