Source code for ironic_python_agent.tests.unit.extensions.test_iscsi

# -*- coding: utf-8 -*-
#
# Copyright 2015 Red Hat, Inc.
# 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 mock

from oslo_concurrency import processutils
from oslotest import base as test_base

from ironic_python_agent import errors
from ironic_python_agent.extensions import iscsi
from ironic_python_agent import hardware
from ironic_python_agent import utils


@mock.patch.object(hardware, 'dispatch_to_managers')
@mock.patch.object(utils, 'execute')
@mock.patch.object(iscsi.rtslib_fb, 'RTSRoot',
                   mock.Mock(side_effect=iscsi.rtslib_fb.RTSLibError()))
[docs]class TestISCSIExtensionTgt(test_base.BaseTestCase):
[docs] def setUp(self): super(TestISCSIExtensionTgt, self).setUp() self.agent_extension = iscsi.ISCSIExtension() self.fake_dev = '/dev/fake' self.fake_iqn = 'iqn-fake'
[docs] def test_start_iscsi_target(self, mock_execute, mock_dispatch): mock_dispatch.return_value = self.fake_dev mock_execute.return_value = ('', '') result = self.agent_extension.start_iscsi_target(iqn=self.fake_iqn) expected = [mock.call('tgtd'), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'target', '--op', 'show', attempts=10), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'target', '--op', 'new', '--tid', '1', '--targetname', self.fake_iqn), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'logicalunit', '--op', 'new', '--tid', '1', '--lun', '1', '--backing-store', self.fake_dev), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'target', '--op', 'bind', '--tid', '1', '--initiator-address', 'ALL')] mock_execute.assert_has_calls(expected) mock_dispatch.assert_called_once_with('get_os_install_device') self.assertEqual({'iscsi_target_iqn': self.fake_iqn}, result.command_result)
[docs] def test_start_iscsi_target_fail_wait_daemon(self, mock_execute, mock_dispatch): mock_dispatch.return_value = self.fake_dev # side effects here: # - execute tgtd: stdout=='', stderr=='' # - induce tgtadm failure while in _wait_for_scsi_daemon mock_execute.side_effect = [('', ''), processutils.ProcessExecutionError('blah')] self.assertRaises(errors.ISCSIError, self.agent_extension.start_iscsi_target, iqn=self.fake_iqn) expected = [mock.call('tgtd'), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'target', '--op', 'show', attempts=10)] mock_execute.assert_has_calls(expected) mock_dispatch.assert_called_once_with('get_os_install_device')
@mock.patch.object(iscsi, '_wait_for_tgtd')
[docs] def test_start_iscsi_target_fail_command(self, mock_wait_iscsi, mock_execute, mock_dispatch): mock_dispatch.return_value = self.fake_dev mock_execute.side_effect = [('', ''), ('', ''), processutils.ProcessExecutionError('blah')] self.assertRaises(errors.ISCSIError, self.agent_extension.start_iscsi_target, iqn=self.fake_iqn) expected = [mock.call('tgtd'), mock.call('tgtadm', '--lld', 'iscsi', '--mode', 'target', '--op', 'new', '--tid', '1', '--targetname', self.fake_iqn)] mock_execute.assert_has_calls(expected) mock_dispatch.assert_called_once_with('get_os_install_device')
_ORIG_UTILS = iscsi.rtslib_fb.utils @mock.patch.object(hardware, 'dispatch_to_managers') # Don't mock the utils module, as it contains exceptions @mock.patch.object(iscsi, 'rtslib_fb', utils=_ORIG_UTILS)
[docs]class TestISCSIExtensionLIO(test_base.BaseTestCase):
[docs] def setUp(self): super(TestISCSIExtensionLIO, self).setUp() self.agent_extension = iscsi.ISCSIExtension() self.fake_dev = '/dev/fake' self.fake_iqn = 'iqn-fake'
[docs] def test_start_iscsi_target(self, mock_rtslib, mock_dispatch): mock_dispatch.return_value = self.fake_dev result = self.agent_extension.start_iscsi_target(iqn=self.fake_iqn) self.assertEqual({'iscsi_target_iqn': self.fake_iqn}, result.command_result) mock_rtslib.BlockStorageObject.assert_called_once_with( name=self.fake_iqn, dev=self.fake_dev) mock_rtslib.Target.assert_called_once_with(mock.ANY, self.fake_iqn, mode='create') mock_rtslib.TPG.assert_called_once_with( mock_rtslib.Target.return_value, mode='create') mock_rtslib.LUN.assert_called_once_with( mock_rtslib.TPG.return_value, storage_object=mock_rtslib.BlockStorageObject.return_value, lun=1) mock_rtslib.NetworkPortal.assert_called_once_with( mock_rtslib.TPG.return_value, '0.0.0.0')
[docs] def test_failed_to_start_iscsi(self, mock_rtslib, mock_dispatch): mock_dispatch.return_value = self.fake_dev mock_rtslib.Target.side_effect = _ORIG_UTILS.RTSLibError() self.assertRaisesRegexp( errors.ISCSIError, 'Failed to create a target', self.agent_extension.start_iscsi_target, iqn=self.fake_iqn)
[docs] def test_failed_to_bind_iscsi(self, mock_rtslib, mock_dispatch): mock_dispatch.return_value = self.fake_dev mock_rtslib.NetworkPortal.side_effect = _ORIG_UTILS.RTSLibError() self.assertRaisesRegexp( errors.ISCSIError, 'Failed to publish a target', self.agent_extension.start_iscsi_target, iqn=self.fake_iqn) mock_rtslib.BlockStorageObject.assert_called_once_with( name=self.fake_iqn, dev=self.fake_dev) mock_rtslib.Target.assert_called_once_with(mock.ANY, self.fake_iqn, mode='create') mock_rtslib.TPG.assert_called_once_with( mock_rtslib.Target.return_value, mode='create') mock_rtslib.LUN.assert_called_once_with( mock_rtslib.TPG.return_value, storage_object=mock_rtslib.BlockStorageObject.return_value, lun=1) mock_rtslib.NetworkPortal.assert_called_once_with( mock_rtslib.TPG.return_value, '0.0.0.0')
@mock.patch.object(iscsi.rtslib_fb, 'RTSRoot')
[docs]class TestISCSIExtensionCleanUp(test_base.BaseTestCase):
[docs] def setUp(self): super(TestISCSIExtensionCleanUp, self).setUp() self.agent_extension = iscsi.ISCSIExtension() self.fake_dev = '/dev/fake' self.fake_iqn = 'iqn-fake'
[docs] def test_lio_not_available(self, mock_rtslib): mock_rtslib.side_effect = IOError() iscsi.clean_up(self.fake_dev)
[docs] def test_device_not_found(self, mock_rtslib): mock_rtslib.return_value.storage_objects = [] iscsi.clean_up(self.fake_dev)
[docs] def test_ok(self, mock_rtslib): mock_rtslib.return_value.storage_objects = [ mock.Mock(udev_path='wrong path'), mock.Mock(udev_path=self.fake_dev), mock.Mock(udev_path='wrong path'), ] # mocks don't play well with name attribute for i, fake_storage in enumerate( mock_rtslib.return_value.storage_objects): fake_storage.name = 'iqn%d' % i mock_rtslib.return_value.targets = [ mock.Mock(wwn='iqn0'), mock.Mock(wwn='iqn1'), ] iscsi.clean_up(self.fake_dev) for fake_storage in mock_rtslib.return_value.storage_objects: self.assertEqual(fake_storage.udev_path == self.fake_dev, fake_storage.delete.called) for fake_target in mock_rtslib.return_value.targets: self.assertEqual(fake_target.wwn == 'iqn1', fake_target.delete.called)
[docs] def test_delete_fails(self, mock_rtslib): mock_rtslib.return_value.storage_objects = [ mock.Mock(udev_path='wrong path'), mock.Mock(udev_path=self.fake_dev), mock.Mock(udev_path='wrong path'), ] # mocks don't play well with name attribute for i, fake_storage in enumerate( mock_rtslib.return_value.storage_objects): fake_storage.name = 'iqn%d' % i mock_rtslib.return_value.targets = [ mock.Mock(wwn='iqn0'), mock.Mock(wwn='iqn1'), ] mock_rtslib.return_value.targets[1].delete.side_effect = ( _ORIG_UTILS.RTSLibError()) self.assertRaises(errors.ISCSIError, iscsi.clean_up, self.fake_dev)

Project Source