nova/nova/tests/unit/virt/libvirt/test_quobyte.py

184 lines
7.5 KiB
Python

# Copyright (c) 2015 Quobyte 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.
"""Unit tests for the Quobyte volume driver module."""
import mock
import os
from oslo_concurrency import processutils
from oslo_utils import fileutils
from nova import exception
from nova import test
from nova import utils
from nova.virt.libvirt import quobyte
class QuobyteTestCase(test.NoDBTestCase):
@mock.patch.object(fileutils, "ensure_tree")
@mock.patch.object(utils, "execute")
def test_quobyte_mount_volume(self, mock_execute, mock_ensure_tree):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
quobyte.mount_volume(quobyte_volume, export_mnt_base)
mock_ensure_tree.assert_called_once_with(export_mnt_base)
expected_commands = [mock.call('mount.quobyte',
quobyte_volume,
export_mnt_base,
check_exit_code=[0, 4])
]
mock_execute.assert_has_calls(expected_commands)
@mock.patch.object(fileutils, "ensure_tree")
@mock.patch.object(utils, "execute")
def test_quobyte_mount_volume_with_config(self,
mock_execute,
mock_ensure_tree):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
config_file_dummy = "/etc/quobyte/dummy.conf"
quobyte.mount_volume(quobyte_volume,
export_mnt_base,
config_file_dummy)
mock_ensure_tree.assert_called_once_with(export_mnt_base)
expected_commands = [mock.call('mount.quobyte',
quobyte_volume,
export_mnt_base,
'-c',
config_file_dummy,
check_exit_code=[0, 4])
]
mock_execute.assert_has_calls(expected_commands)
@mock.patch.object(fileutils, "ensure_tree")
@mock.patch.object(utils, "execute",
side_effect=(processutils.
ProcessExecutionError))
def test_quobyte_mount_volume_fails(self, mock_execute, mock_ensure_tree):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
self.assertRaises(processutils.ProcessExecutionError,
quobyte.mount_volume,
quobyte_volume,
export_mnt_base)
@mock.patch.object(utils, "execute")
def test_quobyte_umount_volume(self, mock_execute):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
quobyte.umount_volume(export_mnt_base)
mock_execute.assert_called_once_with('umount.quobyte',
export_mnt_base)
@mock.patch.object(quobyte.LOG, "error")
@mock.patch.object(utils, "execute")
def test_quobyte_umount_volume_warns(self,
mock_execute,
mock_debug):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
def exec_side_effect(*cmd, **kwargs):
exerror = processutils.ProcessExecutionError()
exerror.message = "Device or resource busy"
raise exerror
mock_execute.side_effect = exec_side_effect
quobyte.umount_volume(export_mnt_base)
(mock_debug.
assert_called_once_with("The Quobyte volume at %s is still in use.",
export_mnt_base))
@mock.patch.object(quobyte.LOG, "exception")
@mock.patch.object(utils, "execute",
side_effect=(processutils.ProcessExecutionError))
def test_quobyte_umount_volume_fails(self,
mock_execute,
mock_exception):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
quobyte.umount_volume(export_mnt_base)
(mock_exception.
assert_called_once_with("Couldn't unmount "
"the Quobyte Volume at %s",
export_mnt_base))
@mock.patch.object(os, "access", return_value=True)
@mock.patch.object(utils, "execute")
def test_quobyte_is_valid_volume(self, mock_execute, mock_access):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
quobyte.validate_volume(export_mnt_base)
mock_execute.assert_called_once_with('getfattr',
'-n',
'quobyte.info',
export_mnt_base)
@mock.patch.object(utils, "execute",
side_effect=(processutils.
ProcessExecutionError))
def test_quobyte_is_valid_volume_vol_not_valid_volume(self, mock_execute):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
self.assertRaises(exception.NovaException,
quobyte.validate_volume,
export_mnt_base)
@mock.patch.object(os, "access", return_value=False)
@mock.patch.object(utils, "execute",
side_effect=(processutils.
ProcessExecutionError))
def test_quobyte_is_valid_volume_vol_no_valid_access(self,
mock_execute,
mock_access):
mnt_base = '/mnt'
quobyte_volume = '192.168.1.1/volume-00001'
export_mnt_base = os.path.join(mnt_base,
utils.get_hash_str(quobyte_volume))
self.assertRaises(exception.NovaException,
quobyte.validate_volume,
export_mnt_base)