/usr/lib/python3/dist-packages/os_brick/tests/windows/test_iscsi.py is in python3-os-brick 2.3.0-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | # 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 ddt
import mock
from os_win import exceptions as os_win_exc
from os_brick import exception
from os_brick.initiator.windows import iscsi
from os_brick.tests.windows import test_base
@ddt.ddt
class WindowsISCSIConnectorTestCase(test_base.WindowsConnectorTestBase):
@mock.patch.object(iscsi.WindowsISCSIConnector, 'validate_initiators')
def setUp(self, mock_validate_connectors):
super(WindowsISCSIConnectorTestCase, self).setUp()
self._diskutils = mock.Mock()
self._iscsi_utils = mock.Mock()
self._connector = iscsi.WindowsISCSIConnector(
device_scan_interval=mock.sentinel.rescan_interval)
self._connector._diskutils = self._diskutils
self._connector._iscsi_utils = self._iscsi_utils
@ddt.data({'requested_initiators': [mock.sentinel.initiator_0],
'available_initiators': [mock.sentinel.initiator_0,
mock.sentinel.initiator_1]},
{'requested_initiators': [mock.sentinel.initiator_0],
'available_initiators': [mock.sentinel.initiator_1]},
{'requested_initiators': [],
'available_initiators': [mock.sentinel.software_initiator]})
@ddt.unpack
def test_validate_initiators(self, requested_initiators,
available_initiators):
self._iscsi_utils.get_iscsi_initiators.return_value = (
available_initiators)
self._connector.initiator_list = requested_initiators
expected_valid_initiator = not (
set(requested_initiators).difference(set(available_initiators)))
valid_initiator = self._connector.validate_initiators()
self.assertEqual(expected_valid_initiator, valid_initiator)
def test_get_initiator(self):
initiator = self._connector.get_initiator()
self.assertEqual(self._iscsi_utils.get_iscsi_initiator.return_value,
initiator)
@mock.patch.object(iscsi, 'utilsfactory')
def test_get_connector_properties(self, mock_utilsfactory):
mock_iscsi_utils = (
mock_utilsfactory.get_iscsi_initiator_utils.return_value)
props = self._connector.get_connector_properties()
expected_props = dict(
initiator=mock_iscsi_utils.get_iscsi_initiator.return_value)
self.assertEqual(expected_props, props)
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_all_targets')
def test_get_all_paths(self, mock_get_all_targets):
initiators = [mock.sentinel.initiator_0, mock.sentinel.initiator_1]
all_targets = [(mock.sentinel.portal_0, mock.sentinel.target_0,
mock.sentinel.lun_0),
(mock.sentinel.portal_1, mock.sentinel.target_1,
mock.sentinel.lun_1)]
self._connector.initiator_list = initiators
mock_get_all_targets.return_value = all_targets
expected_paths = [
(initiator_name, target_portal, target_iqn, target_lun)
for target_portal, target_iqn, target_lun in all_targets
for initiator_name in initiators]
all_paths = self._connector._get_all_paths(mock.sentinel.conn_props)
self.assertEqual(expected_paths, all_paths)
mock_get_all_targets.assert_called_once_with(mock.sentinel.conn_props)
@ddt.data(True, False)
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_scsi_wwn')
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_all_paths')
def test_connect_volume(self, use_multipath,
mock_get_all_paths, mock_get_scsi_wwn):
fake_paths = [(mock.sentinel.initiator_name,
mock.sentinel.target_portal,
mock.sentinel.target_iqn,
mock.sentinel.target_lun)] * 3
fake_conn_props = dict(auth_username=mock.sentinel.auth_username,
auth_password=mock.sentinel.auth_password)
mock_get_all_paths.return_value = fake_paths
self._iscsi_utils.login_storage_target.side_effect = [
os_win_exc.OSWinException, None, None]
self._iscsi_utils.get_device_number_and_path.return_value = (
mock.sentinel.device_number, mock.sentinel.device_path)
self._connector.use_multipath = use_multipath
device_info = self._connector.connect_volume(fake_conn_props)
expected_device_info = dict(type='block',
path=mock.sentinel.device_path,
number=mock.sentinel.device_number,
scsi_wwn=mock_get_scsi_wwn.return_value)
self.assertEqual(expected_device_info, device_info)
mock_get_all_paths.assert_called_once_with(fake_conn_props)
expected_login_attempts = 3 if use_multipath else 2
self._iscsi_utils.login_storage_target.assert_has_calls(
[mock.call(target_lun=mock.sentinel.target_lun,
target_iqn=mock.sentinel.target_iqn,
target_portal=mock.sentinel.target_portal,
auth_username=mock.sentinel.auth_username,
auth_password=mock.sentinel.auth_password,
mpio_enabled=use_multipath,
initiator_name=mock.sentinel.initiator_name,
ensure_lun_available=False)] *
expected_login_attempts)
self._iscsi_utils.ensure_lun_available.assert_has_calls(
[mock.call(target_iqn=mock.sentinel.target_iqn,
target_lun=mock.sentinel.target_lun,
rescan_attempts=(
self._connector.device_scan_attempts),
retry_interval=mock.sentinel.rescan_interval)] *
(expected_login_attempts - 1))
self._iscsi_utils.get_device_number_and_path.assert_called_once_with(
mock.sentinel.target_iqn, mock.sentinel.target_lun)
mock_get_scsi_wwn.assert_called_once_with(mock.sentinel.device_number)
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_all_paths')
def test_connect_volume_exc(self, mock_get_all_paths):
fake_paths = [(mock.sentinel.initiator_name,
mock.sentinel.target_portal,
mock.sentinel.target_iqn,
mock.sentinel.target_lun)] * 3
mock_get_all_paths.return_value = fake_paths
self._iscsi_utils.login_storage_target.side_effect = (
os_win_exc.OSWinException)
self._connector.use_multipath = True
self.assertRaises(exception.BrickException,
self._connector.connect_volume,
connection_properties={})
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_all_targets')
def test_disconnect_volume(self, mock_get_all_targets):
targets = [
(mock.sentinel.portal_0, mock.sentinel.tg_0, mock.sentinel.lun_0),
(mock.sentinel.portal_1, mock.sentinel.tg_1, mock.sentinel.lun_1)]
mock_get_all_targets.return_value = targets
self._iscsi_utils.get_target_luns.return_value = [mock.sentinel.lun_0]
self._connector.disconnect_volume(mock.sentinel.conn_props)
self._diskutils.rescan_disks.assert_called_once_with()
mock_get_all_targets.assert_called_once_with(mock.sentinel.conn_props)
self._iscsi_utils.logout_storage_target.assert_called_once_with(
mock.sentinel.tg_0)
self._iscsi_utils.get_target_luns.assert_has_calls(
[mock.call(mock.sentinel.tg_0), mock.call(mock.sentinel.tg_1)])
@mock.patch.object(iscsi.WindowsISCSIConnector, '_get_all_targets')
@mock.patch.object(iscsi.WindowsISCSIConnector, '_check_device_paths')
def test_get_volume_paths(self, mock_check_dev_paths,
mock_get_all_targets):
targets = [
(mock.sentinel.portal_0, mock.sentinel.tg_0, mock.sentinel.lun_0),
(mock.sentinel.portal_1, mock.sentinel.tg_1, mock.sentinel.lun_1)]
mock_get_all_targets.return_value = targets
self._iscsi_utils.get_device_number_and_path.return_value = [
mock.sentinel.dev_num, mock.sentinel.dev_path]
volume_paths = self._connector.get_volume_paths(
mock.sentinel.conn_props)
expected_paths = [mock.sentinel.dev_path]
self.assertEqual(expected_paths, volume_paths)
mock_check_dev_paths.assert_called_once_with(set(expected_paths))
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