# Copyright 2017 IBM Corp. # # 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. from unittest import mock from nova_powervm.tests.virt.powervm.volume import test_driver as test_vol from nova_powervm.virt.powervm import exception as p_exc from nova_powervm.virt.powervm.volume import rbd as v_drv from pypowervm import const as pvm_const from pypowervm.tests import test_fixtures as pvm_fx from pypowervm.wrappers import base_partition as pvm_bp from pypowervm.wrappers import storage as pvm_stg from pypowervm.wrappers import virtual_io_server as pvm_vios class FakeRBDVolAdapter(v_drv.RBDVolumeAdapter): """Subclass for RBDVolumeAdapter, since it is abstract.""" def __init__(self, adapter, host_uuid, instance, connection_info, stg_ftsk=None): super(FakeRBDVolAdapter, self).__init__( adapter, host_uuid, instance, connection_info, stg_ftsk=stg_ftsk) class TestRBDVolumeAdapter(test_vol.TestVolumeAdapter): """Tests the RBDVolumeAdapter. NovaLink is a I/O host.""" def setUp(self): super(TestRBDVolumeAdapter, self).setUp() # Needed for the volume adapter self.adpt = self.useFixture(pvm_fx.AdapterFx()).adpt mock_inst = mock.MagicMock(uuid='2BC123') self.vol_drv = FakeRBDVolAdapter( self.adpt, 'host_uuid', mock_inst, {'data': {'name': 'pool/image', 'volume_id': 'a_vol_id'}, 'serial': 'volid1'}) self.fake_vios = pvm_vios.VIOS.bld( self.adpt, 'vios1', pvm_bp.PartitionMemoryConfiguration.bld(self.adpt, 1024), pvm_bp.PartitionMemoryConfiguration.bld(self.adpt, 0.1, 1)) self.feed = [pvm_vios.VIOS.wrap(self.fake_vios.entry)] ftskfx = pvm_fx.FeedTaskFx(self.feed) self.useFixture(ftskfx) def test_min_xags(self): """Ensures xag's only returns SCSI Mappings.""" self.assertEqual([pvm_const.XAG.VIO_SMAP], self.vol_drv.min_xags()) @mock.patch('pypowervm.tasks.scsi_mapper.add_map', autospec=True) @mock.patch('pypowervm.tasks.scsi_mapper.build_vscsi_mapping', autospec=True) @mock.patch('pypowervm.entities.Entry.uuid', new_callable=mock.PropertyMock) @mock.patch('pypowervm.tasks.slot_map.SlotMapStore.register_vscsi_mapping', autospec=True) @mock.patch('pypowervm.tasks.client_storage.udid_to_scsi_mapping', autospec=True) @mock.patch('nova_powervm.virt.powervm.vm.get_vm_id') @mock.patch('pypowervm.tasks.partition.get_mgmt_partition', autospec=True) @mock.patch('pypowervm.wrappers.storage.RBD.bld_ref') def test_connect_volume(self, mock_rbd_bld_ref, mock_get_mgmt_partition, mock_get_vm_id, mock_udid_to_map, mock_reg_map, mock_get_vios_uuid, mock_build_map, mock_add_map): # Mockups mock_rbd = mock.Mock() mock_rbd_bld_ref.return_value = mock_rbd mock_slot_mgr = mock.MagicMock() mock_slot_mgr.build_map.get_vscsi_slot.return_value = 4, 'fake_path' mock_vios = mock.Mock(uuid='uuid1') mock_get_mgmt_partition.return_value = mock_vios mock_get_vios_uuid.return_value = 'uuid1' mock_get_vm_id.return_value = 'partition_id' mock_udid_to_map.return_value = mock.Mock() mock_add_map.return_value = None # Set user v_drv.CONF.powervm.rbd_user = 'tester' # Invoke self.vol_drv.connect_volume(mock_slot_mgr) # Validate mock_rbd_bld_ref.assert_called_once_with( self.adpt, 'pool/image', tag='a_vol_id', user='tester') self.assertEqual(1, mock_build_map.call_count) self.assertEqual(1, mock_udid_to_map.call_count) @mock.patch('pypowervm.tasks.scsi_mapper.build_vscsi_mapping', autospec=True) @mock.patch('pypowervm.entities.Entry.uuid', new_callable=mock.PropertyMock) @mock.patch('pypowervm.tasks.slot_map.SlotMapStore.register_vscsi_mapping', autospec=True) @mock.patch('pypowervm.tasks.client_storage.udid_to_scsi_mapping', autospec=True) @mock.patch('nova_powervm.virt.powervm.vm.get_vm_id') @mock.patch('pypowervm.tasks.partition.get_mgmt_partition', autospec=True) @mock.patch('pypowervm.wrappers.storage.RBD.bld_ref') def test_connect_volume_rebuild_no_slot( self, mock_rbd_bld_ref, mock_get_mgmt_partition, mock_get_vm_id, mock_udid_to_map, mock_reg_map, mock_get_vios_uuid, mock_build_map): # Mockups mock_rbd = mock.Mock() mock_rbd_bld_ref.return_value = mock_rbd mock_slot_mgr = mock.MagicMock() mock_slot_mgr.is_rebuild = True mock_slot_mgr.build_map.get_vscsi_slot.return_value = None, None mock_vios = mock.Mock(uuid='uuid1') mock_get_mgmt_partition.return_value = mock_vios mock_get_vios_uuid.return_value = 'uuid1' # Invoke self.vol_drv.connect_volume(mock_slot_mgr) # Validate mock_rbd_bld_ref.assert_called_once_with( self.adpt, 'pool/image', tag='a_vol_id', user='') self.assertEqual(0, mock_build_map.call_count) @mock.patch('pypowervm.entities.Entry.uuid', new_callable=mock.PropertyMock) @mock.patch('pypowervm.tasks.partition.get_mgmt_partition', autospec=True) @mock.patch('pypowervm.tasks.scsi_mapper.gen_match_func', autospec=True) @mock.patch('pypowervm.tasks.scsi_mapper.find_maps', autospec=True) def test_disconnect_volume(self, mock_find_maps, mock_gen_match_func, mock_get_mgmt_partition, mock_entry_uuid): # Mockups mock_slot_mgr = mock.MagicMock() mock_vios = mock.Mock(uuid='uuid1') mock_get_mgmt_partition.return_value = mock_vios mock_match_func = mock.Mock() mock_gen_match_func.return_value = mock_match_func mock_entry_uuid.return_value = 'uuid1' # Invoke self.vol_drv._disconnect_volume(mock_slot_mgr) # Validate mock_gen_match_func.assert_called_once_with( pvm_stg.VDisk, names=['pool/image']) mock_find_maps.assert_called_once_with( mock.ANY, client_lpar_id='2BC123', match_func=mock_match_func) @mock.patch('nova_powervm.virt.powervm.volume.rbd.RBDVolumeAdapter.' 'vios_uuids', new_callable=mock.PropertyMock) @mock.patch('nova_powervm.virt.powervm.volume.rbd.RBDVolumeAdapter.' 'is_volume_on_vios') def test_pre_live_migration_on_destination(self, mock_on_vios, mock_uuids): mock_uuids.return_value = ['uuid1'] mock_on_vios.return_value = (True, 'pool/image') self.vol_drv.pre_live_migration_on_destination(mock.ANY) mock_on_vios.return_value = (False, None) self.assertRaises( p_exc.VolumePreMigrationFailed, self.vol_drv.pre_live_migration_on_destination, mock.ANY) @mock.patch('nova_powervm.virt.powervm.volume.rbd.RBDVolumeAdapter.' 'vios_uuids', new_callable=mock.PropertyMock) @mock.patch('pypowervm.tasks.hdisk.rbd_exists', autospec=True) def test_is_volume_on_vios(self, mock_exists, mock_vios_uuids): mock_exists.return_value = True mock_vios_uuids.return_value = ['uuid1'] vol_found, vol_name = self.vol_drv.is_volume_on_vios( mock.Mock(uuid='uuid2')) self.assertFalse(vol_found) self.assertIsNone(vol_name) vol_found, vol_name = self.vol_drv.is_volume_on_vios( mock.Mock(uuid='uuid1')) self.assertTrue(vol_found) self.assertEqual('pool/image', vol_name) mock_exists.return_value = False vol_found, vol_name = self.vol_drv.is_volume_on_vios( mock.Mock(uuid='uuid1')) self.assertFalse(vol_found) self.assertIsNone(vol_name)