173 lines
7.4 KiB
Python
173 lines
7.4 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import mock
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from oslo_concurrency import processutils as putils
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from os_brick import exception
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from os_brick.initiator.connectors import nvme
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from os_brick.initiator import linuxscsi
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from os_brick.tests.initiator import test_connector
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FAKE_NVME_LIST_OUTPUT = """
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Node SN Model \
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Namespace Usage Format FW Rev\n
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---------------- -------------------- ---------------------------------------\
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- --------- -------------------------- ---------------- --------\n
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/dev/nvme0n1 67ff9467da6e5567 Linux \
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10 1.07 GB / 1.07 GB 512 B + 0 B 4.8.0-58\n
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"""
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class NVMeConnectorTestCase(test_connector.ConnectorTestCase):
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"""Test cases for NVMe initiator class."""
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def setUp(self):
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super(NVMeConnectorTestCase, self).setUp()
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self.connector = nvme.NVMeConnector(None,
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execute=self.fake_execute,
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use_multipath=False)
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def _nvme_list_cmd(self, *args, **kwargs):
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return FAKE_NVME_LIST_OUTPUT, None
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def test__get_nvme_devices(self):
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expected = ['/dev/nvme0n1']
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self.connector._execute = self._nvme_list_cmd
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actual = self.connector._get_nvme_devices()
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self.assertEqual(expected, actual)
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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def test_get_nvme_devices_raise(self, mock_execute):
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mock_execute.side_effect = putils.ProcessExecutionError
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self.assertRaises(putils.ProcessExecutionError,
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self.connector._get_nvme_devices)
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@mock.patch.object(nvme.NVMeConnector, '_get_nvme_devices')
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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@mock.patch('time.sleep')
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def test_connect_volume(self, mock_sleep, mock_execute, mock_devices):
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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mock_devices.side_effect = [
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['/dev/nvme0n1'], ['/dev/nvme0n2']]
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device_info = self.connector.connect_volume(
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connection_properties)
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self.assertEqual('/dev/nvme0n2', device_info['path'])
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self.assertEqual('block', device_info['type'])
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self.assertEqual(2, mock_devices.call_count)
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mock_execute.assert_called_once_with(
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'nvme', 'connect', '-t',
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connection_properties['transport_type'], '-n',
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'volume_123',
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'-a', connection_properties['target_portal'],
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'-s', connection_properties['target_port'],
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root_helper=None,
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run_as_root=True)
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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def test_connect_volume_raise(self, mock_execute):
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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mock_execute.side_effect = putils.ProcessExecutionError
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self.assertRaises(putils.ProcessExecutionError,
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self.connector.connect_volume,
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connection_properties)
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@mock.patch.object(nvme.NVMeConnector, '_get_nvme_devices')
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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@mock.patch('time.sleep')
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def test_connect_volume_max_retry(
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self, mock_sleep, mock_execute, mock_devices):
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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mock_devices.return_value = '/dev/nvme0n1'
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self.assertRaises(exception.TargetPortalNotFound,
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self.connector.connect_volume,
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connection_properties)
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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def test_disconnect_volume(self, mock_execute):
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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self.connector.disconnect_volume(connection_properties, None)
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mock_execute.asert_called_once_with(
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'nvme', 'disconnect', '-n',
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'volume_123',
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root_helper=None,
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run_as_root=True)
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@mock.patch.object(nvme.NVMeConnector, '_execute')
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def test_disconnect_volume_raise(self, mock_execute):
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mock_execute.side_effect = putils.ProcessExecutionError
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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self.assertRaises(putils.ProcessExecutionError,
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self.connector.disconnect_volume,
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connection_properties,
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None)
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@mock.patch.object(nvme.NVMeConnector, 'get_volume_paths')
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def test_extend_volume_no_path(self, mock_volume_paths):
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mock_volume_paths.return_value = []
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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self.assertRaises(exception.VolumePathsNotFound,
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self.connector.extend_volume,
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connection_properties)
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@mock.patch.object(linuxscsi.LinuxSCSI, 'find_multipath_device_path')
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@mock.patch.object(linuxscsi.LinuxSCSI, 'extend_volume')
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@mock.patch.object(nvme.NVMeConnector, 'get_volume_paths')
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def test_extend_volume(self, mock_volume_paths, mock_scsi_extend,
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mock_scsi_find_mpath):
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fake_new_size = 1024
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mock_volume_paths.return_value = ['/dev/vdx']
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mock_scsi_extend.return_value = fake_new_size
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connection_properties = {'target_portal': 'portal',
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'target_port': 1,
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'nqn': 'nqn.volume_123',
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'device_path': '',
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'transport_type': 'rdma'}
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new_size = self.connector.extend_volume(connection_properties)
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self.assertEqual(fake_new_size, new_size)
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mock_scsi_find_mpath.assert_not_called()
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