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How to use _verify_migration method in tempest

Best Python code snippet using tempest_python

test_volume_retype.py

Source:test_volume_retype.py

...36                self.admin_volume_client.wait_for_resource_deletion(37                    fetched_vol['id'])38                break39    @abc.abstractmethod40    def _verify_migration(self, source_vol, dest_vol):41        pass42    def _create_volume_from_snapshot(self):43        # Create a volume in the first backend44        src_vol = self.create_volume(volume_type=self.src_vol_type['name'])45        # Create a volume snapshot46        snapshot = self.create_snapshot(src_vol['id'])47        # Create a volume from the snapshot48        src_vol = self.create_volume(volume_type=self.src_vol_type['name'],49                                     snapshot_id=snapshot['id'])50        # Delete the snapshot51        self.snapshots_client.delete_snapshot(snapshot['id'])52        self.snapshots_client.wait_for_resource_deletion(snapshot['id'])53        return src_vol54    def _retype_volume(self, volume, migration_policy):55        volume_source = self.admin_volume_client.show_volume(56            volume['id'])['volume']57        self.volumes_client.retype_volume(58            volume['id'],59            new_type=self.dst_vol_type['name'],60            migration_policy=migration_policy)61        self.addCleanup(self._wait_for_internal_volume_cleanup, volume)62        waiters.wait_for_volume_retype(self.volumes_client, volume['id'],63                                       self.dst_vol_type['name'])64        volume_dest = self.admin_volume_client.show_volume(65            volume['id'])['volume']66        self._verify_migration(volume_source, volume_dest)67class VolumeRetypeWithMigrationTest(VolumeRetypeTest):68    @classmethod69    def skip_checks(cls):70        super(VolumeRetypeTest, cls).skip_checks()71        if not CONF.volume_feature_enabled.multi_backend:72            raise cls.skipException("Cinder multi-backend feature disabled")73        if len(set(CONF.volume.backend_names)) < 2:74            raise cls.skipException("Requires at least two different "75                                    "backend names")76    @classmethod77    def resource_setup(cls):78        super(VolumeRetypeWithMigrationTest, cls).resource_setup()79        # read backend name from a list.80        backend_src = CONF.volume.backend_names[0]81        backend_dst = CONF.volume.backend_names[1]82        extra_specs_src = {"volume_backend_name": backend_src}83        extra_specs_dst = {"volume_backend_name": backend_dst}84        cls.src_vol_type = cls.create_volume_type(extra_specs=extra_specs_src)85        cls.dst_vol_type = cls.create_volume_type(extra_specs=extra_specs_dst)86    def _verify_migration(self, volume_source, volume_dest):87        keys_with_no_change = ('id', 'size', 'description', 'name',88                               'user_id', 'os-vol-tenant-attr:tenant_id')89        keys_with_change = ('volume_type', 'os-vol-host-attr:host')90        # Check the volume information after the migration.91        self.assertEqual('success',92                         volume_dest['os-vol-mig-status-attr:migstat'])93        self.assertEqual('success', volume_dest['migration_status'])94        for key in keys_with_no_change:95            self.assertEqual(volume_source[key], volume_dest[key])96        for key in keys_with_change:97            self.assertNotEqual(volume_source[key], volume_dest[key])98        self.assertEqual(volume_dest['volume_type'], self.dst_vol_type['name'])99    @decorators.idempotent_id('a1a41f3f-9dad-493e-9f09-3ff197d477cd')100    def test_available_volume_retype_with_migration(self):101        src_vol = self.create_volume(volume_type=self.src_vol_type['name'])102        self._retype_volume(src_vol, migration_policy='on-demand')103    @decorators.idempotent_id('d0d9554f-e7a5-4104-8973-f35b27ccb60d')104    def test_volume_from_snapshot_retype_with_migration(self):105        src_vol = self._create_volume_from_snapshot()106        # Migrate the volume from snapshot to the second backend107        self._retype_volume(src_vol, migration_policy='on-demand')108class VolumeRetypeWithoutMigrationTest(VolumeRetypeTest):109    @classmethod110    def resource_setup(cls):111        super(VolumeRetypeWithoutMigrationTest, cls).resource_setup()112        cls.src_vol_type = cls.create_volume_type('volume-type-1')113        cls.dst_vol_type = cls.create_volume_type('volume-type-2')114    def _verify_migration(self, volume_source, volume_dest):115        keys_with_no_change = ('id', 'size', 'description', 'name',116                               'user_id', 'os-vol-tenant-attr:tenant_id',117                               'os-vol-host-attr:host')118        keys_with_change = ('volume_type',)119        # Check the volume information after the retype120        self.assertIsNone(volume_dest['os-vol-mig-status-attr:migstat'])121        self.assertIsNone(volume_dest['migration_status'])122        for key in keys_with_no_change:123            self.assertEqual(volume_source[key], volume_dest[key])124        for key in keys_with_change:125            self.assertNotEqual(volume_source[key], volume_dest[key])126        self.assertEqual(volume_dest['volume_type'], self.dst_vol_type['name'])127    @decorators.idempotent_id('b90412ee-465d-46e9-b249-ec84a47d5f25')128    def test_available_volume_retype(self):...

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