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# 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 sys
from unittest import mock
import fixtures
from oslo_concurrency import processutils
from oslo_config import cfg
from oslotest import base
from glance_store import exceptions
CONF = cfg.CONF
class HostMountManagerTestCase(base.BaseTestCase):
class FakeHostMountState:
def __init__(self):
self.mountpoints = {mock.sentinel.mountpoint}
def setUp(self):
super(HostMountManagerTestCase, self).setUp()
CONF.register_opt(cfg.DictOpt('enabled_backends'))
CONF.set_override('enabled_backends', 'fake:file')
# Since this is mocked in other tests, we unmock it here
if 'glance_store.common.fs_mount' in sys.modules:
sys.modules.pop('glance_store.common.fs_mount')
# Since the _HostMountStateManager class instantiates on its
# import, this import is done here to register the enabled_backends
# config option before it is used during initialization
from glance_store.common import fs_mount as mount # noqa
self.__manager__ = mount.__manager__
def get_state(self):
with self.__manager__.get_state() as state:
return state
def test_get_state_host_not_initialized(self):
self.__manager__.state = None
self.assertRaises(exceptions.HostNotInitialized,
self.get_state)
def test_get_state(self):
self.__manager__.state = self.FakeHostMountState()
state = self.get_state()
self.assertEqual({mock.sentinel.mountpoint}, state.mountpoints)
class HostMountStateTestCase(base.BaseTestCase):
def setUp(self):
super(HostMountStateTestCase, self).setUp()
CONF.register_opt(cfg.DictOpt('enabled_backends'))
CONF.set_override('enabled_backends', 'fake:file')
# Since this is mocked in other tests, we unmock it here
if 'glance_store.common.fs_mount' in sys.modules:
sys.modules.pop('glance_store.common.fs_mount')
# Since the _HostMountStateManager class instantiates on its
# import, this import is done here to register the enabled_backends
# config option before it is used during initialization
from glance_store.common import fs_mount as mount # noqa
self.mounted = set()
self.m = mount._HostMountState()
def fake_execute(cmd, *args, **kwargs):
if cmd == 'mount':
path = args[-1]
if path in self.mounted:
raise processutils.ProcessExecutionError('Already mounted')
self.mounted.add(path)
elif cmd == 'umount':
path = args[-1]
if path not in self.mounted:
raise processutils.ProcessExecutionError('Not mounted')
self.mounted.remove(path)
def fake_ismount(path):
return path in self.mounted
mock_execute = mock.MagicMock(side_effect=fake_execute)
self.useFixture(fixtures.MonkeyPatch(
'oslo_concurrency.processutils.execute',
mock_execute))
self.useFixture(fixtures.MonkeyPatch('os.path.ismount', fake_ismount))
@staticmethod
def _expected_sentinel_mount_calls(mountpoint=mock.sentinel.mountpoint):
return [mock.call('mount', '-t', mock.sentinel.fstype,
mock.sentinel.option1, mock.sentinel.option2,
mock.sentinel.export, mountpoint,
root_helper=mock.sentinel.rootwrap_helper,
run_as_root=True)]
@staticmethod
def _expected_sentinel_umount_calls(mountpoint=mock.sentinel.mountpoint):
return [mock.call('umount', mountpoint, attempts=3,
delay_on_retry=True,
root_helper=mock.sentinel.rootwrap_helper,
run_as_root=True)]
def _sentinel_mount(self):
self.m.mount(mock.sentinel.fstype, mock.sentinel.export,
mock.sentinel.vol, mock.sentinel.mountpoint,
mock.sentinel.host, mock.sentinel.rootwrap_helper,
[mock.sentinel.option1, mock.sentinel.option2])
def _sentinel_umount(self):
self.m.umount(mock.sentinel.vol, mock.sentinel.mountpoint,
mock.sentinel.host, mock.sentinel.rootwrap_helper)
@mock.patch('os.makedirs')
def test_mount(self, mock_makedirs):
self._sentinel_mount()
mock_makedirs.assert_called_once()
processutils.execute.assert_has_calls(
self._expected_sentinel_mount_calls())
def test_unmount_without_mount(self):
self._sentinel_umount()
processutils.execute.assert_not_called()
@mock.patch('os.rmdir')
@mock.patch('os.makedirs')
def test_umount_with_mount(self, mock_makedirs, mock_rmdir):
self._sentinel_mount()
self._sentinel_umount()
mock_makedirs.assert_called_once()
mock_rmdir.assert_called_once()
processutils.execute.assert_has_calls(
self._expected_sentinel_mount_calls() +
self._expected_sentinel_umount_calls())
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