os-win/os_win/tests/unit/utils/test_baseutils.py

161 lines
6.6 KiB
Python

# Copyright 2016 Cloudbase Solutions Srl
#
# 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.
from unittest import mock
import six
import importlib
from os_win.tests.unit import test_base
from os_win.utils import baseutils
class BaseUtilsTestCase(test_base.OsWinBaseTestCase):
"""Unit tests for the os-win BaseUtils class."""
def setUp(self):
super(BaseUtilsTestCase, self).setUp()
self.utils = baseutils.BaseUtils()
self.utils._conn = mock.MagicMock()
mock.patch.object(importlib, 'util').start()
@mock.patch.object(baseutils, 'wmi', create=True)
def test_get_wmi_obj(self, mock_wmi):
result = self.utils._get_wmi_obj(mock.sentinel.moniker)
self.assertEqual(mock_wmi.WMI.return_value, result)
mock_wmi.WMI.assert_called_once_with(moniker=mock.sentinel.moniker)
@mock.patch.object(baseutils.BaseUtils, '_get_wmi_obj')
@mock.patch.object(baseutils, 'sys')
def _check_get_wmi_conn(self, mock_sys, mock_get_wmi_obj, **kwargs):
mock_sys.platform = 'win32'
result = self.utils._get_wmi_conn(mock.sentinel.moniker, **kwargs)
self.assertEqual(mock_get_wmi_obj.return_value, result)
mock_get_wmi_obj.assert_called_once_with(mock.sentinel.moniker,
**kwargs)
def test_get_wmi_conn_kwargs(self):
self.utils._WMI_CONS.clear()
self._check_get_wmi_conn(privileges=mock.sentinel.privileges)
self.assertNotIn(mock.sentinel.moniker, baseutils.BaseUtils._WMI_CONS)
def test_get_wmi_conn(self):
self._check_get_wmi_conn()
self.assertIn(mock.sentinel.moniker, baseutils.BaseUtils._WMI_CONS)
@mock.patch.object(baseutils.BaseUtils, '_get_wmi_obj')
@mock.patch.object(baseutils, 'sys')
def test_get_wmi_conn_cached(self, mock_sys, mock_get_wmi_obj):
mock_sys.platform = 'win32'
baseutils.BaseUtils._WMI_CONS[mock.sentinel.moniker] = (
mock.sentinel.conn)
result = self.utils._get_wmi_conn(mock.sentinel.moniker)
self.assertEqual(mock.sentinel.conn, result)
self.assertFalse(mock_get_wmi_obj.called)
@mock.patch.object(baseutils, 'sys')
def test_get_wmi_conn_linux(self, mock_sys):
mock_sys.platform = 'linux'
result = self.utils._get_wmi_conn(mock.sentinel.moniker)
self.assertIsNone(result)
class BaseUtilsVirtTestCase(test_base.OsWinBaseTestCase):
"""Unit tests for the os-win BaseUtilsVirt class."""
def setUp(self):
super(BaseUtilsVirtTestCase, self).setUp()
self.utils = baseutils.BaseUtilsVirt()
self.utils._conn_attr = mock.MagicMock()
baseutils.BaseUtilsVirt._os_version = None
mock.patch.object(importlib, 'util').start()
@mock.patch.object(baseutils.BaseUtilsVirt, '_get_wmi_conn')
def test_conn(self, mock_get_wmi_conn):
self.utils._conn_attr = None
self.assertEqual(mock_get_wmi_conn.return_value, self.utils._conn)
mock_get_wmi_conn.assert_called_once_with(
self.utils._wmi_namespace % '.')
def test_vs_man_svc(self):
mock_os = mock.MagicMock(Version='6.3.0')
self._mock_wmi.WMI.return_value.Win32_OperatingSystem.return_value = [
mock_os]
expected = self.utils._conn.Msvm_VirtualSystemManagementService()[0]
self.assertEqual(expected, self.utils._vs_man_svc)
self.assertEqual(expected, self.utils._vs_man_svc_attr)
@mock.patch.object(baseutils, 'wmi', create=True)
def test_vs_man_svc_2012(self, mock_wmi):
baseutils.BaseUtilsVirt._old_wmi = None
mock_os = mock.MagicMock(Version='6.2.0')
mock_wmi.WMI.return_value.Win32_OperatingSystem.return_value = [
mock_os]
fake_module_path = '/fake/path/to/module'
mock_wmi.__path__ = [fake_module_path]
spec = importlib.util.spec_from_file_location.return_value
module = importlib.util.module_from_spec.return_value
old_conn = module.WMI.return_value
expected = old_conn.Msvm_VirtualSystemManagementService()[0]
self.assertEqual(expected, self.utils._vs_man_svc)
self.assertIsNone(self.utils._vs_man_svc_attr)
importlib.util.spec_from_file_location.assert_called_once_with(
'old_wmi', '%s.py' % fake_module_path)
spec.loader.exec_module.assert_called_once_with(module)
importlib.util.module_from_spec.assert_called_once_with(
importlib.util.spec_from_file_location.return_value)
@mock.patch.object(baseutils.BaseUtilsVirt, '_get_wmi_compat_conn')
def test_get_wmi_obj_compatibility_6_3(self, mock_get_wmi_compat):
mock_os = mock.MagicMock(Version='6.3.0')
self._mock_wmi.WMI.return_value.Win32_OperatingSystem.return_value = [
mock_os]
result = self.utils._get_wmi_obj(mock.sentinel.moniker, True)
self.assertEqual(self._mock_wmi.WMI.return_value, result)
@mock.patch.object(baseutils.BaseUtilsVirt, '_get_wmi_compat_conn')
def test_get_wmi_obj_no_compatibility_6_2(self, mock_get_wmi_compat):
baseutils.BaseUtilsVirt._os_version = [6, 2]
result = self.utils._get_wmi_obj(mock.sentinel.moniker, False)
self.assertEqual(self._mock_wmi.WMI.return_value, result)
@mock.patch.object(baseutils.BaseUtilsVirt, '_get_wmi_compat_conn')
def test_get_wmi_obj_compatibility_6_2(self, mock_get_wmi_compat):
baseutils.BaseUtilsVirt._os_version = [6, 2]
result = self.utils._get_wmi_obj(mock.sentinel.moniker, True)
self.assertEqual(mock_get_wmi_compat.return_value, result)
class SynchronizedMetaTestCase(test_base.OsWinBaseTestCase):
@mock.patch.object(baseutils.threading, 'RLock')
def test_synchronized_meta(self, mock_rlock_cls):
fake_cls = type('fake_cls', (object, ),
dict(method1=lambda x: None, method2=lambda y: None))
fake_cls = six.add_metaclass(baseutils.SynchronizedMeta)(fake_cls)
fake_cls().method1()
fake_cls().method2()
mock_rlock_cls.assert_called_once_with()
self.assertEqual(2, mock_rlock_cls.return_value.__exit__.call_count)