nova/nova/tests/unit/virt/hyperv/test_livemigrationops.py

124 lines
5.8 KiB
Python

# Copyright 2014 Cloudbase Solutions Srl
# 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 mock
from oslo.config import cfg
from nova.tests.unit import fake_instance
from nova.tests.unit.virt.hyperv import test_base
from nova.virt.hyperv import livemigrationops
from nova.virt.hyperv import vmutils
CONF = cfg.CONF
class LiveMigrationOpsTestCase(test_base.HyperVBaseTestCase):
"""Unit tests for the Hyper-V LiveMigrationOps class."""
def setUp(self):
super(LiveMigrationOpsTestCase, self).setUp()
self.context = 'fake_context'
self._livemigrops = livemigrationops.LiveMigrationOps()
self._livemigrops._livemigrutils = mock.MagicMock()
@mock.patch('nova.virt.hyperv.vmops.VMOps.copy_vm_console_logs')
def _test_live_migration(self, mock_copy_logs, side_effect):
mock_instance = fake_instance.fake_instance_obj(self.context)
mock_post = mock.MagicMock()
mock_recover = mock.MagicMock()
fake_dest = mock.sentinel.DESTINATION
self._livemigrops._livemigrutils.live_migrate_vm.side_effect = [
side_effect]
if side_effect is vmutils.HyperVException:
self.assertRaises(vmutils.HyperVException,
self._livemigrops.live_migration,
self.context, mock_instance, fake_dest,
mock_post, mock_recover, False, None)
mock_recover.assert_called_once_with(self.context, mock_instance,
fake_dest, False)
else:
self._livemigrops.live_migration(context=self.context,
instance_ref=mock_instance,
dest=fake_dest,
post_method=mock_post,
recover_method=mock_recover)
mock_copy_logs.assert_called_once_with(mock_instance.name,
fake_dest)
mock_live_migr = self._livemigrops._livemigrutils.live_migrate_vm
mock_live_migr.assert_called_once_with(mock_instance.name,
fake_dest)
mock_post.assert_called_once_with(self.context, mock_instance,
fake_dest, False)
def test_live_migration(self):
self._test_live_migration(side_effect=None)
def test_live_migration_exception(self):
self._test_live_migration(side_effect=vmutils.HyperVException)
def test_live_migration_wrong_os_version(self):
self._livemigrops._livemigrutils = None
self.assertRaises(NotImplementedError,
self._livemigrops.live_migration, self.context,
instance_ref=mock.DEFAULT,
dest=mock.sentinel.DESTINATION,
post_method=mock.DEFAULT,
recover_method=mock.DEFAULT)
@mock.patch('nova.virt.hyperv.volumeops.VolumeOps'
'.ebs_root_in_block_devices')
@mock.patch('nova.virt.hyperv.imagecache.ImageCache.get_cached_image')
@mock.patch('nova.virt.hyperv.volumeops.VolumeOps'
'.initialize_volumes_connection')
def test_pre_live_migration(self, mock_initialize_connection,
mock_get_cached_image,
mock_ebs_root_in_block_devices):
mock_instance = fake_instance.fake_instance_obj(self.context)
mock_instance.image_ref = "fake_image_ref"
mock_ebs_root_in_block_devices.return_value = None
CONF.set_override('use_cow_images', True)
self._livemigrops.pre_live_migration(
self.context, mock_instance,
block_device_info=mock.sentinel.BLOCK_INFO,
network_info=mock.sentinel.NET_INFO)
check_config = (
self._livemigrops._livemigrutils.check_live_migration_config)
check_config.assert_called_once_with()
mock_ebs_root_in_block_devices.assert_called_once_with(
mock.sentinel.BLOCK_INFO)
mock_get_cached_image.assert_called_once_with(self.context,
mock_instance)
mock_initialize_connection.assert_called_once_with(
mock.sentinel.BLOCK_INFO)
@mock.patch('nova.virt.hyperv.volumeops.VolumeOps.disconnect_volumes')
def test_post_live_migration(self, mock_disconnect_volumes):
self._livemigrops.post_live_migration(
self.context, mock.sentinel.instance,
mock.sentinel.block_device_info)
mock_disconnect_volumes.assert_called_once_with(
mock.sentinel.block_device_info)
@mock.patch('nova.virt.hyperv.vmops.VMOps.log_vm_serial_output')
def test_post_live_migration_at_destination(self, mock_log_vm):
mock_instance = fake_instance.fake_instance_obj(self.context)
self._livemigrops.post_live_migration_at_destination(
self.context, mock_instance, network_info=mock.sentinel.NET_INFO,
block_migration=mock.sentinel.BLOCK_INFO)
mock_log_vm.assert_called_once_with(mock_instance.name,
mock_instance.uuid)