diff options
| -rw-r--r-- | nova/tests/test_compute.py | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/nova/tests/test_compute.py b/nova/tests/test_compute.py index 439508b27..783261127 100644 --- a/nova/tests/test_compute.py +++ b/nova/tests/test_compute.py @@ -721,3 +721,114 @@ class ComputeTestCase(test.TestCase): LOG.info(_("After force-killing instances: %s"), instances) self.assertEqual(len(instances), 1) self.assertEqual(power_state.SHUTOFF, instances[0]['state']) + + @staticmethod + def _parse_db_block_device_mapping(bdm_ref): + attr_list = ('delete_on_termination', 'device_name', 'no_device', + 'virtual_name', 'volume_id', 'volume_size', 'snapshot_id') + bdm = {} + for attr in attr_list: + val = bdm_ref.get(attr, None) + if val: + bdm[attr] = val + + return bdm + + def test_update_block_device_mapping(self): + instance_id = self._create_instance() + mappings = [ + {'virtual': 'ami', 'device': 'sda1'}, + {'virtual': 'root', 'device': '/dev/sda1'}, + + {'virtual': 'swap', 'device': 'sdb1'}, + {'virtual': 'swap', 'device': 'sdb2'}, + {'virtual': 'swap', 'device': 'sdb3'}, + {'virtual': 'swap', 'device': 'sdb4'}, + + {'virtual': 'ephemeral0', 'device': 'sdc1'}, + {'virtual': 'ephemeral1', 'device': 'sdc2'}, + {'virtual': 'ephemeral2', 'device': 'sdc3'}] + block_device_mapping = [ + # root + {'device_name': '/dev/sda1', + 'snapshot_id': 0x12345678, + 'delete_on_termination': False}, + + + # overwrite swap + {'device_name': '/dev/sdb2', + 'snapshot_id': 0x23456789, + 'delete_on_termination': False}, + {'device_name': '/dev/sdb3', + 'snapshot_id': 0x3456789A}, + {'device_name': '/dev/sdb4', + 'no_device': True}, + + # overwrite ephemeral + {'device_name': '/dev/sdc2', + 'snapshot_id': 0x456789AB, + 'delete_on_termination': False}, + {'device_name': '/dev/sdc3', + 'snapshot_id': 0x56789ABC}, + {'device_name': '/dev/sdc4', + 'no_device': True}, + + # volume + {'device_name': '/dev/sdd1', + 'snapshot_id': 0x87654321, + 'delete_on_termination': False}, + {'device_name': '/dev/sdd2', + 'snapshot_id': 0x98765432}, + {'device_name': '/dev/sdd3', + 'snapshot_id': 0xA9875463}, + {'device_name': '/dev/sdd4', + 'no_device': True}] + + self.compute_api._update_image_block_device_mapping( + self.context, instance_id, mappings) + + bdms = [self._parse_db_block_device_mapping(bdm_ref) + for bdm_ref in db.block_device_mapping_get_all_by_instance( + self.context, instance_id)] + expected_result = [ + {'virtual_name': 'swap', 'device_name': '/dev/sdb1'}, + {'virtual_name': 'swap', 'device_name': '/dev/sdb2'}, + {'virtual_name': 'swap', 'device_name': '/dev/sdb3'}, + {'virtual_name': 'swap', 'device_name': '/dev/sdb4'}, + {'virtual_name': 'ephemeral0', 'device_name': '/dev/sdc1'}, + {'virtual_name': 'ephemeral1', 'device_name': '/dev/sdc2'}, + {'virtual_name': 'ephemeral2', 'device_name': '/dev/sdc3'}] + bdms.sort() + expected_result.sort() + self.assertDictListMatch(bdms, expected_result) + + self.compute_api._update_block_device_mapping( + self.context, instance_id, block_device_mapping) + bdms = [self._parse_db_block_device_mapping(bdm_ref) + for bdm_ref in db.block_device_mapping_get_all_by_instance( + self.context, instance_id)] + expected_result = [ + {'snapshot_id': 0x12345678, 'device_name': '/dev/sda1'}, + + {'virtual_name': 'swap', 'device_name': '/dev/sdb1'}, + {'snapshot_id': 0x23456789, 'device_name': '/dev/sdb2'}, + {'snapshot_id': 0x3456789A, 'device_name': '/dev/sdb3'}, + {'no_device': True, 'device_name': '/dev/sdb4'}, + + {'virtual_name': 'ephemeral0', 'device_name': '/dev/sdc1'}, + {'snapshot_id': 0x456789AB, 'device_name': '/dev/sdc2'}, + {'snapshot_id': 0x56789ABC, 'device_name': '/dev/sdc3'}, + {'no_device': True, 'device_name': '/dev/sdc4'}, + + {'snapshot_id': 0x87654321, 'device_name': '/dev/sdd1'}, + {'snapshot_id': 0x98765432, 'device_name': '/dev/sdd2'}, + {'snapshot_id': 0xA9875463, 'device_name': '/dev/sdd3'}, + {'no_device': True, 'device_name': '/dev/sdd4'}] + bdms.sort() + expected_result.sort() + self.assertDictListMatch(bdms, expected_result) + + for bdm in db.block_device_mapping_get_all_by_instance( + self.context, instance_id): + db.block_device_mapping_destroy(self.context, bdm['id']) + self.compute.terminate_instance(self.context, instance_id) |