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# Copyright 2012-2013 OpenStack, LLC.
#
# 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 openstackclient.common import clientmanager
def factory(inst):
return object()
class Container(object):
attr = clientmanager.ClientCache(factory)
def init_token(self):
return
def test_singleton():
# Verify that the ClientCache descriptor only
# invokes the factory one time and always
# returns the same value after that.
c = Container()
assert c.attr is c.attr
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