neutron/neutron/tests/unit/hyperv/test_hyperv_utilsfactory.py
Claudiu Belu 2778b9fe4f Adds support for the Hyper-V WMI V2 namespace
Blueprint: hyper-v-wmi-v2

The Hyper-V APIs are mainly based on WMI. The original 2008 Hyper-V
release introduced the "root\virtualization" namespace which got
superseded in Hyper-V Server / Windows Server 2012 by the
"root\virtualization\v2" namespace (referred as V2 in the sources).

The original namespace has been dropped in the upcoming Hyper-V 2012
R2 (currently available in preview), which means that the Grizzly code
will not be compatible with it as is.

The Hyper-V driver is structured with a clear decoupling between OS
interaction classes (so called *utils modules and classes) and the
agent's logic.

This allows us to provide an implementation of the V2 API without
impacting the rest of the agent's code, based on a factory module
added to instantiate the proper version of the *utils classes: the
original "V1" ones for versions of the OS predating 2012 and the
newer "V2" ones starting from Hyper-V 2012 (Windows kernel version
6.2).

Change-Id: I380d8c65715242d8a5b94b5061ebe4f30e6c2090
2013-08-26 04:05:44 -07:00

52 lines
1.7 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 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.
# @author: Claudiu Belu, Cloudbase Solutions Srl
"""
Unit tests for the Hyper-V utils factory.
"""
import mock
from oslo.config import cfg
from neutron.plugins.hyperv.agent import utils
from neutron.plugins.hyperv.agent import utilsfactory
from neutron.plugins.hyperv.agent import utilsv2
from neutron.tests import base
CONF = cfg.CONF
class TestHyperVUtilsFactory(base.BaseTestCase):
def test_get_hypervutils_v2(self):
self._test_returned_class(utilsv2.HyperVUtilsV2, False, '6.2.0')
def test_get_hypervutils_v1_old_version(self):
self._test_returned_class(utils.HyperVUtils, False, '6.1.0')
def test_get_hypervutils_v1_forced(self):
self._test_returned_class(utils.HyperVUtils, True, '6.2.0')
def _test_returned_class(self, expected_class, force_v1, os_version):
CONF.hyperv.force_hyperv_utils_v1 = force_v1
utilsfactory._get_windows_version = mock.MagicMock(
return_value=os_version)
actual_class = type(utilsfactory.get_hypervutils())
self.assertEqual(actual_class, expected_class)