From c13bb7c3bf2400c45d1b93141e67916c81296e38 Mon Sep 17 00:00:00 2001 From: Isaku Yamahata Date: Thu, 23 Jun 2011 19:51:01 +0900 Subject: ec2/cloud: unit tests for parser/formatter of block device mapping This patch adds several unit tests for private functions in ec2/cloud.py. Which are used to parse/format block device mapping. _parse_block_device_mapping(), _format_block_device_mapping() and _format_mappings() --- nova/tests/test_bdm.py | 233 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 233 insertions(+) create mode 100644 nova/tests/test_bdm.py (limited to 'nova') diff --git a/nova/tests/test_bdm.py b/nova/tests/test_bdm.py new file mode 100644 index 000000000..b258f6a75 --- /dev/null +++ b/nova/tests/test_bdm.py @@ -0,0 +1,233 @@ +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright 2011 Isaku Yamahata +# 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. + +""" +Tests for Block Device Mapping Code. +""" + +from nova.api.ec2 import cloud +from nova import test + + +class BlockDeviceMappingEc2CloudTestCase(test.TestCase): + """Test Case for Block Device Mapping""" + + def setUp(self): + super(BlockDeviceMappingEc2CloudTestCase, self).setUp() + + def tearDown(self): + super(BlockDeviceMappingEc2CloudTestCase, self).tearDown() + + def _assertApply(self, action, bdm_list): + for bdm, expected_result in bdm_list: + self.assertDictMatch(action(bdm), expected_result) + + def test_parse_block_device_mapping(self): + bdm_list = [ + ({'device_name': '/dev/fake0', + 'ebs': {'snapshot_id': 'snap-12345678', + 'volume_size': 1}}, + {'device_name': '/dev/fake0', + 'snapshot_id': 0x12345678, + 'volume_size': 1, + 'delete_on_termination': True}), + + ({'device_name': '/dev/fake1', + 'ebs': {'snapshot_id': 'snap-23456789', + 'delete_on_termination': False}}, + {'device_name': '/dev/fake1', + 'snapshot_id': 0x23456789, + 'delete_on_termination': False}), + + ({'device_name': '/dev/fake2', + 'ebs': {'snapshot_id': 'vol-87654321', + 'volume_size': 2}}, + {'device_name': '/dev/fake2', + 'volume_id': 0x87654321, + 'volume_size': 2, + 'delete_on_termination': True}), + + ({'device_name': '/dev/fake3', + 'ebs': {'snapshot_id': 'vol-98765432', + 'delete_on_termination': False}}, + {'device_name': '/dev/fake3', + 'volume_id': 0x98765432, + 'delete_on_termination': False}), + + ({'device_name': '/dev/fake4', + 'ebs': {'no_device': True}}, + {'device_name': '/dev/fake4', + 'no_device': True}), + + ({'device_name': '/dev/fake5', + 'virtual_name': 'ephemeral0'}, + {'device_name': '/dev/fake5', + 'virtual_name': 'ephemeral0'}), + + ({'device_name': '/dev/fake6', + 'virtual_name': 'swap'}, + {'device_name': '/dev/fake6', + 'virtual_name': 'swap'}), + ] + self._assertApply(cloud._parse_block_device_mapping, bdm_list) + + def test_format_block_device_mapping(self): + bdm_list = [ + ({'device_name': '/dev/fake0', + 'snapshot_id': 0x12345678, + 'volume_size': 1, + 'delete_on_termination': True}, + {'deviceName': '/dev/fake0', + 'ebs': {'snapshotId': 'snap-12345678', + 'volumeSize': 1, + 'deleteOnTermination': True}}), + + ({'device_name': '/dev/fake1', + 'snapshot_id': 0x23456789}, + {'deviceName': '/dev/fake1', + 'ebs': {'snapshotId': 'snap-23456789'}}), + + ({'device_name': '/dev/fake2', + 'snapshot_id': 0x23456789, + 'delete_on_termination': False}, + {'deviceName': '/dev/fake2', + 'ebs': {'snapshotId': 'snap-23456789', + 'deleteOnTermination': False}}), + + ({'device_name': '/dev/fake3', + 'volume_id': 0x12345678, + 'volume_size': 1, + 'delete_on_termination': True}, + {'deviceName': '/dev/fake3', + 'ebs': {'snapshotId': 'vol-12345678', + 'volumeSize': 1, + 'deleteOnTermination': True}}), + + ({'device_name': '/dev/fake4', + 'volume_id': 0x23456789}, + {'deviceName': '/dev/fake4', + 'ebs': {'snapshotId': 'vol-23456789'}}), + + ({'device_name': '/dev/fake5', + 'volume_id': 0x23456789, + 'delete_on_termination': False}, + {'deviceName': '/dev/fake5', + 'ebs': {'snapshotId': 'vol-23456789', + 'deleteOnTermination': False}}), + ] + self._assertApply(cloud._format_block_device_mapping, bdm_list) + + def test_format_mapping(self): + properties = { + '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': 0x3456789A, + 'delete_on_termination': False}, + {'device_name': '/dev/sdc3', + 'snapshot_id': 0x456789AB}, + {'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}]} + + expected_result = { + 'blockDeviceMapping': [ + # root + {'deviceName': '/dev/sda1', + 'ebs': {'snapshotId': 'snap-12345678', + 'deleteOnTermination': False}}, + + # swap + {'deviceName': '/dev/sdb1', + 'virtualName': 'swap'}, + {'deviceName': '/dev/sdb2', + 'ebs': {'snapshotId': 'snap-23456789', + 'deleteOnTermination': False}}, + {'deviceName': '/dev/sdb3', + 'ebs': {'snapshotId': 'snap-3456789a'}}, + + # ephemeral + {'deviceName': '/dev/sdc1', + 'virtualName': 'ephemeral0'}, + {'deviceName': '/dev/sdc2', + 'ebs': {'snapshotId': 'snap-3456789a', + 'deleteOnTermination': False}}, + {'deviceName': '/dev/sdc3', + 'ebs': {'snapshotId': 'snap-456789ab'}}, + + # volume + {'deviceName': '/dev/sdd1', + 'ebs': {'snapshotId': 'snap-87654321', + 'deleteOnTermination': False}}, + {'deviceName': '/dev/sdd2', + 'ebs': {'snapshotId': 'snap-98765432'}}, + {'deviceName': '/dev/sdd3', + 'ebs': {'snapshotId': 'snap-a9875463'}}]} + + result = {} + cloud._format_mappings(properties, result) + print result + self.assertEqual(result['blockDeviceMapping'].sort(), + expected_result['blockDeviceMapping'].sort()) -- cgit