glance/glance/tests/unit/base.py

179 lines
6.1 KiB
Python

# Copyright 2012 OpenStack Foundation.
# All Rights Reserved.
#
# 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 os
from unittest import mock
import glance_store as store
from glance_store._drivers import cinder
from glance_store._drivers import rbd as rbd_store
from glance_store._drivers import swift
from glance_store import location
from oslo_concurrency import lockutils
from oslo_config import cfg
from oslo_db import options
from oslo_serialization import jsonutils
from glance.tests import stubs
from glance.tests import utils as test_utils
CONF = cfg.CONF
class StoreClearingUnitTest(test_utils.BaseTestCase):
def setUp(self):
super(StoreClearingUnitTest, self).setUp()
# Ensure stores + locations cleared
location.SCHEME_TO_CLS_MAP = {}
self._create_stores()
self.addCleanup(setattr, location, 'SCHEME_TO_CLS_MAP', dict())
def _create_stores(self, passing_config=True):
"""Create known stores.
:param passing_config: making store driver passes basic configurations.
:returns: the number of how many store drivers been loaded.
"""
store.register_opts(CONF)
self.config(default_store='filesystem',
filesystem_store_datadir=self.test_dir,
group="glance_store")
store.create_stores(CONF)
class MultiStoreClearingUnitTest(test_utils.BaseTestCase):
def setUp(self):
super(MultiStoreClearingUnitTest, self).setUp()
# Ensure stores + locations cleared
location.SCHEME_TO_CLS_BACKEND_MAP = {}
self._create_multi_stores()
self.addCleanup(setattr, location, 'SCHEME_TO_CLS_MAP', dict())
def _create_multi_stores(self, passing_config=True):
"""Create known stores.
:param passing_config: making store driver passes basic configurations.
:returns: the number of how many store drivers been loaded.
"""
rbd_store.rados = mock.MagicMock()
rbd_store.rbd = mock.MagicMock()
rbd_store.Store._set_url_prefix = mock.MagicMock()
cinder.cinderclient = mock.MagicMock()
cinder.Store.get_cinderclient = mock.MagicMock()
swift.swiftclient = mock.MagicMock()
swift.BaseStore.get_store_connection = mock.MagicMock()
self.config(enabled_backends={'fast': 'file', 'cheap': 'file',
'readonly_store': 'http',
'fast-cinder': 'cinder',
'fast-rbd': 'rbd', 'reliable': 'swift'})
store.register_store_opts(CONF)
self.config(default_backend='fast',
group='glance_store')
self.config(filesystem_store_datadir=self.test_dir,
filesystem_thin_provisioning=False,
filesystem_store_chunk_size=65536,
group='fast')
self.config(filesystem_store_datadir=self.test_dir2,
filesystem_thin_provisioning=False,
filesystem_store_chunk_size=65536,
group='cheap')
self.config(rbd_store_chunk_size=8688388, rbd_store_pool='images',
rbd_thin_provisioning=False, group='fast-rbd')
self.config(cinder_volume_type='lvmdriver-1',
cinder_use_multipath=False, group='fast-cinder')
self.config(swift_store_container='glance',
swift_store_large_object_size=524288000,
swift_store_large_object_chunk_size=204800000,
group='reliable')
store.create_multi_stores(CONF)
class IsolatedUnitTest(StoreClearingUnitTest):
"""
Unit test case that establishes a mock environment within
a testing directory (in isolation)
"""
def setUp(self):
super(IsolatedUnitTest, self).setUp()
options.set_defaults(CONF, connection='sqlite://')
lockutils.set_defaults(os.path.join(self.test_dir))
self.config(debug=False)
self.config(default_store='filesystem',
filesystem_store_datadir=self.test_dir,
group="glance_store")
store.create_stores()
def fake_get_conection_type(client):
DEFAULT_API_PORT = 9292
if client.port == DEFAULT_API_PORT:
return stubs.FakeGlanceConnection
self.patcher = mock.patch(
'glance.common.client.BaseClient.get_connection_type',
fake_get_conection_type)
self.addCleanup(self.patcher.stop)
self.patcher.start()
def set_policy_rules(self, rules):
fap = open(CONF.oslo_policy.policy_file, 'w')
fap.write(jsonutils.dumps(rules))
fap.close()
class MultiIsolatedUnitTest(MultiStoreClearingUnitTest):
"""
Unit test case that establishes a mock environment within
a testing directory (in isolation)
"""
def setUp(self):
super(MultiIsolatedUnitTest, self).setUp()
options.set_defaults(CONF, connection='sqlite://')
lockutils.set_defaults(os.path.join(self.test_dir))
self.config(debug=False)
def set_policy_rules(self, rules):
fap = open(CONF.oslo_policy.policy_file, 'w')
fap.write(jsonutils.dumps(rules))
fap.close()
def mock_object(self, obj, attr_name, *args, **kwargs):
"""Use python mock to mock an object attribute
Mocks the specified objects attribute with the given value.
Automatically performs 'addCleanup' for the mock.
"""
patcher = mock.patch.object(obj, attr_name, *args, **kwargs)
result = patcher.start()
self.addCleanup(patcher.stop)
return result