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# 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.
from unittest import mock
from oslo_utils import timeutils
from cinder import context
from cinder import exception
from cinder.tests.unit.targets import targets_fixture as tf
from cinder import utils
from cinder.volume.targets import nvmeof
class FakeNVMeOFDriver(nvmeof.NVMeOF):
def __init__(self, *args, **kwargs):
super(FakeNVMeOFDriver, self).__init__(*args, **kwargs)
def create_nvmeof_target(
self, target_name, target_ip, target_port,
transport_type, ns_id, volume_path):
pass
def delete_nvmeof_target(self, target_name):
pass
class TestNVMeOFDriver(tf.TargetDriverFixture):
def setUp(self):
super(TestNVMeOFDriver, self).setUp()
self.configuration.target_protocol = 'nvmet_rdma'
self.target = FakeNVMeOFDriver(root_helper=utils.get_root_helper(),
configuration=self.configuration)
self.target_ip = self.configuration.target_ip_address
self.target_port = self.configuration.target_port
self.nvmet_subsystem_name = self.configuration.target_prefix
self.nvmet_ns_id = self.configuration.nvmet_ns_id
self.nvmet_port_id = self.configuration.nvmet_port_id
self.nvme_transport_type = 'rdma'
self.fake_volume_id = 'c446b9a2-c968-4260-b95f-a18a7b41c004'
self.testvol_path = (
'/dev/stack-volumes-lvmdriver-1/volume-%s' % self.fake_volume_id)
self.fake_project_id = 'ed2c1fd4-5555-1111-aa15-123b93f75cba'
self.testvol = (
{'project_id': self.fake_project_id,
'name': 'testvol',
'size': 1,
'id': self.fake_volume_id,
'volume_type_id': None,
'provider_location':
self.target.get_nvmeof_location(
"ngn.%s-%s" % (
self.nvmet_subsystem_name,
self.fake_volume_id),
self.target_ip,
self.target_port,
self.nvme_transport_type,
self.nvmet_ns_id
),
'provider_auth': None,
'provider_geometry': None,
'created_at': timeutils.utcnow(),
'host': 'fake_host@lvm#lvm'})
def test_initialize_connection(self):
mock_connector = {'initiator': 'fake_init'}
mock_testvol = self.testvol
expected_return = {
'driver_volume_type': 'nvmeof',
'data': self.target._get_connection_properties(mock_testvol)
}
self.assertEqual(expected_return,
self.target.initialize_connection(mock_testvol,
mock_connector))
@mock.patch.object(FakeNVMeOFDriver, 'create_nvmeof_target')
def test_create_export(self, mock_create_nvme_target):
ctxt = context.get_admin_context()
self.target.create_export(ctxt, self.testvol, self.testvol_path)
mock_create_nvme_target.assert_called_once_with(
self.fake_volume_id,
self.configuration.target_prefix,
self.target_ip,
self.target_port,
self.nvme_transport_type,
self.nvmet_port_id,
self.nvmet_ns_id,
self.testvol_path
)
@mock.patch.object(FakeNVMeOFDriver, 'delete_nvmeof_target')
def test_remove_export(self, mock_delete_nvmeof_target):
ctxt = context.get_admin_context()
self.target.remove_export(ctxt, self.testvol)
mock_delete_nvmeof_target.assert_called_once_with(
self.testvol
)
def test_get_connection_properties(self):
expected_return = {
'target_portal': self.target_ip,
'target_port': str(self.target_port),
'nqn': "ngn.%s-%s" % (
self.nvmet_subsystem_name, self.fake_volume_id),
'transport_type': self.nvme_transport_type,
'ns_id': str(self.nvmet_ns_id)
}
self.assertEqual(expected_return,
self.target._get_connection_properties(self.testvol))
def test_validate_connector(self):
mock_connector = {'initiator': 'fake_init'}
self.assertTrue(self.target.validate_connector(mock_connector))
def test_validate_connector_not_found(self):
mock_connector = {'fake_init'}
self.assertRaises(exception.InvalidConnectorException,
self.target.validate_connector,
mock_connector)
def test_invalid_target_protocol(self):
self.configuration.target_protocol = 'iser'
self.assertRaises(nvmeof.UnsupportedNVMETProtocol,
FakeNVMeOFDriver,
root_helper=utils.get_root_helper(),
configuration=self.configuration)
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