placement/nova/tests/uuidsentinel.py
Dan Smith da64d4bb88 Add uuidsentinel test module
This adds a module that behaves like mock.sentinel, but that returns
UUIDs suitable for use in tests where we need that specifically.

Change-Id: Ie15c0becad4f016ae730c7fa47d6ec21fdec8783
2015-12-14 11:28:55 +01:00

31 lines
1.0 KiB
Python

# 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 sys
class UUIDSentinels(object):
def __init__(self):
from oslo_utils import uuidutils
self._uuid_module = uuidutils
self._sentinels = {}
def __getattr__(self, name):
if name.startswith('_'):
raise ValueError('Sentinels must not start with _')
if name not in self._sentinels:
self._sentinels[name] = str(self._uuid_module.generate_uuid())
return self._sentinels[name]
sys.modules[__name__] = UUIDSentinels()