OpenStack Study: test_hyperv_utilsfactory.py

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# 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

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class TestHyperVUtilsFactory(base.BaseTestCase):

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    def test_get_hypervutils_v2_r2(self):

        self._test_returned_class(utilsv2.HyperVUtilsV2R2, True, '6.3.0')

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    def test_get_hypervutils_v2(self):

        self._test_returned_class(utilsv2.HyperVUtilsV2, False, '6.2.0')

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    def test_get_hypervutils_v1_old_version(self):

        self._test_returned_class(utils.HyperVUtils, False, '6.1.0')

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    def test_get_hypervutils_v1_forced(self):

        self._test_returned_class(utils.HyperVUtils, True, '6.2.0')

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    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)