cinderlib/cinderlib/tests/unit/persistence/test_memory.py

93 lines
3.7 KiB
Python

# Copyright (c) 2018, Red Hat, Inc.
# 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.
from unittest import mock
from cinder import objects as ovos
import cinderlib
from cinderlib import objects
from cinderlib.tests.unit.persistence import base
class TestMemoryPersistence(base.BasePersistenceTest):
PERSISTENCE_CFG = {'storage': 'memory'}
def tearDown(self):
# Since this plugin uses class attributes we have to clear them
self.persistence.volumes.clear()
self.persistence.snapshots.clear()
self.persistence.connections.clear()
self.persistence.key_values.clear()
super(TestMemoryPersistence, self).tearDown()
def test_db(self):
self.assertIsInstance(self.persistence.db,
cinderlib.persistence.base.DB)
self.assertEqual(self.persistence.db._DB__connections_get,
ovos.VolumeAttachmentList.get_all_by_volume_id)
def test___connections_get(self):
"""Check we can get volume_attachment from OVO."""
vol = objects.Volume(self.backend, size=10)
vol._connections = None
delattr(vol._ovo, '_obj_volume_attachment')
conns = [objects.Connection(self.backend, connector={'k': 'v'},
volume_id=vol.id, status='attached',
attach_mode='rw',
connection_info={'conn': {}})]
with mock.patch.object(self.persistence, 'get_connections') \
as get_conns_mock:
get_conns_mock.return_value = conns
res = vol._ovo.volume_attachment
self.assertIsInstance(res, ovos.VolumeAttachmentList)
self.assertEqual(1, len(res))
self.assertEqual(conns[0]._ovo, res.objects[0])
get_conns_mock.assert_called_once_with(volume_id=vol.id)
def test_set_volume(self):
vol = cinderlib.Volume(self.backend, size=1, name='disk')
self.assertDictEqual({}, self.persistence.volumes)
self.persistence.set_volume(vol)
self.assertDictEqual({vol.id: vol}, self.persistence.volumes)
def test_set_snapshot(self):
vol = cinderlib.Volume(self.backend, size=1, name='disk')
snap = cinderlib.Snapshot(vol, name='disk')
self.assertDictEqual({}, self.persistence.snapshots)
self.persistence.set_snapshot(snap)
self.assertDictEqual({snap.id: snap}, self.persistence.snapshots)
def test_set_connection(self):
vol = cinderlib.Volume(self.backend, size=1, name='disk')
conn = cinderlib.Connection(self.backend, volume=vol, connector={},
connection_info={'conn': {'data': {}}})
self.assertDictEqual({}, self.persistence.connections)
self.persistence.set_connection(conn)
self.assertDictEqual({conn.id: conn}, self.persistence.connections)
def test_set_key_values(self):
self.assertDictEqual({}, self.persistence.key_values)
expected = [cinderlib.KeyValue('key', 'value')]
self.persistence.set_key_value(expected[0])
self.assertIn('key', self.persistence.key_values)
self.assertEqual(expected, list(self.persistence.key_values.values()))