nova/nova/tests/unit/virt/disk/mount/test_block.py

47 lines
1.5 KiB
Python

# Copyright 2015 Rackspace Hosting, 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.
import fixtures
from nova import test
from nova.virt.disk.mount import block
from nova.virt.image import model as imgmodel
class LoopTestCase(test.NoDBTestCase):
def setUp(self):
super(LoopTestCase, self).setUp()
device_path = '/dev/mapper/instances--instance-0000001_disk'
self.image = imgmodel.LocalBlockImage(device_path)
def test_get_dev(self):
tempdir = self.useFixture(fixtures.TempDir()).path
b = block.BlockMount(self.image, tempdir)
self.assertTrue(b.get_dev())
self.assertTrue(b.linked)
self.assertEqual(self.image.path, b.device)
def test_unget_dev(self):
tempdir = self.useFixture(fixtures.TempDir()).path
b = block.BlockMount(self.image, tempdir)
b.unget_dev()
self.assertIsNone(b.device)
self.assertFalse(b.linked)