# 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 as putils from os_brick import exception from os_brick.initiator.connectors import nvme from os_brick.initiator import linuxscsi from os_brick.tests.initiator import test_connector FAKE_NVME_LIST_OUTPUT = """ Node SN Model \ Namespace Usage Format FW Rev\n ---------------- -------------------- ---------------------------------------\ - --------- -------------------------- ---------------- --------\n /dev/nvme0n1 67ff9467da6e5567 Linux \ 10 1.07 GB / 1.07 GB 512 B + 0 B 4.8.0-58\n """ class NVMeConnectorTestCase(test_connector.ConnectorTestCase): """Test cases for NVMe initiator class.""" def setUp(self): super(NVMeConnectorTestCase, self).setUp() self.connector = nvme.NVMeConnector(None, execute=self.fake_execute, use_multipath=False) def _nvme_list_cmd(self, *args, **kwargs): return FAKE_NVME_LIST_OUTPUT, None def test__get_nvme_devices(self): expected = ['/dev/nvme0n1'] self.connector._execute = self._nvme_list_cmd actual = self.connector._get_nvme_devices() self.assertEqual(expected, actual) @mock.patch.object(nvme.NVMeConnector, '_execute') def test_get_nvme_devices_raise(self, mock_execute): mock_execute.side_effect = putils.ProcessExecutionError self.assertRaises(putils.ProcessExecutionError, self.connector._get_nvme_devices) @mock.patch.object(nvme.NVMeConnector, '_get_nvme_devices') @mock.patch.object(nvme.NVMeConnector, '_execute') @mock.patch('time.sleep') def test_connect_volume(self, mock_sleep, mock_execute, mock_devices): connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} mock_devices.side_effect = [ ['/dev/nvme0n1'], ['/dev/nvme0n2']] device_info = self.connector.connect_volume( connection_properties) self.assertEqual('/dev/nvme0n2', device_info['path']) self.assertEqual('block', device_info['type']) self.assertEqual(2, mock_devices.call_count) mock_execute.assert_called_once_with( 'nvme', 'connect', '-t', connection_properties['transport_type'], '-n', 'volume_123', '-a', connection_properties['target_portal'], '-s', connection_properties['target_port'], root_helper=None, run_as_root=True) @mock.patch.object(nvme.NVMeConnector, '_execute') def test_connect_volume_raise(self, mock_execute): connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} mock_execute.side_effect = putils.ProcessExecutionError self.assertRaises(putils.ProcessExecutionError, self.connector.connect_volume, connection_properties) @mock.patch.object(nvme.NVMeConnector, '_get_nvme_devices') @mock.patch.object(nvme.NVMeConnector, '_execute') @mock.patch('time.sleep') def test_connect_volume_max_retry( self, mock_sleep, mock_execute, mock_devices): connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} mock_devices.return_value = '/dev/nvme0n1' self.assertRaises(exception.TargetPortalNotFound, self.connector.connect_volume, connection_properties) @mock.patch.object(nvme.NVMeConnector, '_execute') def test_disconnect_volume(self, mock_execute): connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} self.connector.disconnect_volume(connection_properties, None) mock_execute.asert_called_once_with( 'nvme', 'disconnect', '-n', 'volume_123', root_helper=None, run_as_root=True) @mock.patch.object(nvme.NVMeConnector, '_execute') def test_disconnect_volume_raise(self, mock_execute): mock_execute.side_effect = putils.ProcessExecutionError connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} self.assertRaises(putils.ProcessExecutionError, self.connector.disconnect_volume, connection_properties, None) @mock.patch.object(nvme.NVMeConnector, 'get_volume_paths') def test_extend_volume_no_path(self, mock_volume_paths): mock_volume_paths.return_value = [] connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} self.assertRaises(exception.VolumePathsNotFound, self.connector.extend_volume, connection_properties) @mock.patch.object(linuxscsi.LinuxSCSI, 'find_multipath_device_path') @mock.patch.object(linuxscsi.LinuxSCSI, 'extend_volume') @mock.patch.object(nvme.NVMeConnector, 'get_volume_paths') def test_extend_volume(self, mock_volume_paths, mock_scsi_extend, mock_scsi_find_mpath): fake_new_size = 1024 mock_volume_paths.return_value = ['/dev/vdx'] mock_scsi_extend.return_value = fake_new_size connection_properties = {'target_portal': 'portal', 'target_port': 1, 'nqn': 'nqn.volume_123', 'device_path': '', 'transport_type': 'rdma'} new_size = self.connector.extend_volume(connection_properties) self.assertEqual(fake_new_size, new_size) mock_scsi_find_mpath.assert_not_called()