os-win/os_win/tests/unit/utils/test_hostutils10.py

136 lines
5.6 KiB
Python

# Copyright 2016 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 re
from unittest import mock
from os_win import exceptions
from os_win.tests.unit import test_base
from os_win.utils import hostutils10
class HostUtils10TestCase(test_base.OsWinBaseTestCase):
"""Unit tests for the Hyper-V HostUtils10 class."""
def setUp(self):
super(HostUtils10TestCase, self).setUp()
self._hostutils = hostutils10.HostUtils10()
self._hostutils._conn_hgs_attr = mock.MagicMock()
self._hostutils._conn_attr = mock.MagicMock()
self._hostutils._conn_cimv2 = mock.MagicMock()
@mock.patch.object(hostutils10.HostUtils10, '_get_wmi_conn')
def test_conn_hgs(self, mock_get_wmi_conn):
self._hostutils._conn_hgs_attr = None
self.assertEqual(mock_get_wmi_conn.return_value,
self._hostutils._conn_hgs)
mock_get_wmi_conn.assert_called_once_with(
self._hostutils._HGS_NAMESPACE % self._hostutils._host)
@mock.patch.object(hostutils10.HostUtils10, '_get_wmi_conn')
def test_conn_hgs_no_namespace(self, mock_get_wmi_conn):
self._hostutils._conn_hgs_attr = None
mock_get_wmi_conn.side_effect = [exceptions.OSWinException]
self.assertRaises(exceptions.OSWinException,
lambda: self._hostutils._conn_hgs)
mock_get_wmi_conn.assert_called_once_with(
self._hostutils._HGS_NAMESPACE % self._hostutils._host)
def _test_is_host_guarded(self, return_code=0, is_host_guarded=True):
hgs_config = self._hostutils._conn_hgs.MSFT_HgsClientConfiguration
hgs_config.Get.return_value = (return_code,
mock.MagicMock
(IsHostGuarded=is_host_guarded))
expected_result = is_host_guarded and not return_code
result = self._hostutils.is_host_guarded()
self.assertEqual(expected_result, result)
def test_is_guarded_host_config_error(self):
self._test_is_host_guarded(return_code=mock.sentinel.return_code)
def test_is_guarded_host(self):
self._test_is_host_guarded()
def test_is_not_guarded_host(self):
self._test_is_host_guarded(is_host_guarded=False)
def test_supports_nested_virtualization(self):
self.assertTrue(self._hostutils.supports_nested_virtualization())
@mock.patch.object(hostutils10.HostUtils10, '_get_pci_device_address')
def test_get_pci_passthrough_devices(self, mock_get_pci_device_address):
mock_pci_dev = mock.MagicMock(
DeviceInstancePath='PCIP\\VEN_15B3&DEV_1007&SUBSYS_001815B3')
self._hostutils._conn.Msvm_PciExpress.return_value = [mock_pci_dev] * 3
mock_get_pci_device_address.side_effect = [
None, mock.sentinel.address, mock.sentinel.address]
pci_devices = self._hostutils.get_pci_passthrough_devices()
expected_pci_dev = {
'address': mock.sentinel.address,
'vendor_id': '15B3',
'product_id': '1007',
'dev_id': mock_pci_dev.DeviceID}
self.assertEqual([expected_pci_dev], pci_devices)
self._hostutils._conn.Msvm_PciExpress.assert_called_once_with()
mock_get_pci_device_address.assert_has_calls(
[mock.call(mock_pci_dev.DeviceInstancePath)] * 2)
def _check_get_pci_device_address_None(self, return_code=0):
pnp_device = mock.MagicMock()
pnp_device.GetDeviceProperties.return_value = (
return_code, [mock.MagicMock()])
self._hostutils._conn_cimv2.Win32_PnPEntity.return_value = [pnp_device]
pci_dev_address = self._hostutils._get_pci_device_address(
mock.sentinel.pci_device_path)
self.assertIsNone(pci_dev_address)
def test_get_pci_device_address_error(self):
self._check_get_pci_device_address_None(return_code=1)
def test_get_pci_device_address_exception(self):
self._check_get_pci_device_address_None()
def test_get_pci_device_address(self):
pnp_device = mock.MagicMock()
pnp_device_properties = [
mock.MagicMock(KeyName='DEVPKEY_Device_LocationInfo',
Data="bus 2, domain 4, function 0"),
mock.MagicMock(KeyName='DEVPKEY_Device_Address',
Data=0)]
pnp_device.GetDeviceProperties.return_value = (
0, pnp_device_properties)
self._hostutils._conn_cimv2.Win32_PnPEntity.return_value = [pnp_device]
result = self._hostutils._get_pci_device_address(
mock.sentinel.device_instance_path)
pnp_props = {prop.KeyName: prop.Data for prop in pnp_device_properties}
location_info = pnp_props['DEVPKEY_Device_LocationInfo']
slot = pnp_props['DEVPKEY_Device_Address']
[bus, domain, function] = re.findall(r'\b\d+\b', location_info)
expected_result = "%04x:%02x:%02x.%1x" % (
int(domain), int(bus), int(slot), int(function))
self.assertEqual(expected_result, result)
self._hostutils._conn_cimv2.Win32_PnPEntity.assert_called_once_with(
DeviceID=mock.sentinel.device_instance_path)