gantt/nova/tests/test_virt.py
Brian Lamar 72289d81ba Skip tests in OSX due to readlink compat
Although greadlink can be installed on OSX, there is not
compatibility in the code so the tests should be skipped until
OpenStack supports running this code on OSX/BSD.

Fixes bug 1037835

Change-Id: Iddaba950f9f8b3823bd62b59b36e08aff4a979f8
2012-09-04 13:33:47 -04:00

197 lines
7.4 KiB
Python

# 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.
import os
import platform
from nova import exception
from nova import flags
from nova import test
from nova import utils
from nova.virt.disk import api as disk_api
from nova.virt import driver
from nova.openstack.common import jsonutils
FLAGS = flags.FLAGS
class TestVirtDriver(test.TestCase):
def test_block_device(self):
swap = {'device_name': '/dev/sdb',
'swap_size': 1}
ephemerals = [{'num': 0,
'virtual_name': 'ephemeral0',
'device_name': '/dev/sdc1',
'size': 1}]
block_device_mapping = [{'mount_device': '/dev/sde',
'device_path': 'fake_device'}]
block_device_info = {
'root_device_name': '/dev/sda',
'swap': swap,
'ephemerals': ephemerals,
'block_device_mapping': block_device_mapping}
empty_block_device_info = {}
self.assertEqual(
driver.block_device_info_get_root(block_device_info), '/dev/sda')
self.assertEqual(
driver.block_device_info_get_root(empty_block_device_info), None)
self.assertEqual(
driver.block_device_info_get_root(None), None)
self.assertEqual(
driver.block_device_info_get_swap(block_device_info), swap)
self.assertEqual(driver.block_device_info_get_swap(
empty_block_device_info)['device_name'], None)
self.assertEqual(driver.block_device_info_get_swap(
empty_block_device_info)['swap_size'], 0)
self.assertEqual(
driver.block_device_info_get_swap({'swap': None})['device_name'],
None)
self.assertEqual(
driver.block_device_info_get_swap({'swap': None})['swap_size'],
0)
self.assertEqual(
driver.block_device_info_get_swap(None)['device_name'], None)
self.assertEqual(
driver.block_device_info_get_swap(None)['swap_size'], 0)
self.assertEqual(
driver.block_device_info_get_ephemerals(block_device_info),
ephemerals)
self.assertEqual(
driver.block_device_info_get_ephemerals(empty_block_device_info),
[])
self.assertEqual(
driver.block_device_info_get_ephemerals(None),
[])
def test_swap_is_usable(self):
self.assertFalse(driver.swap_is_usable(None))
self.assertFalse(driver.swap_is_usable({'device_name': None}))
self.assertFalse(driver.swap_is_usable({'device_name': '/dev/sdb',
'swap_size': 0}))
self.assertTrue(driver.swap_is_usable({'device_name': '/dev/sdb',
'swap_size': 1}))
class TestVirtDisk(test.TestCase):
def setUp(self):
super(TestVirtDisk, self).setUp()
self.executes = []
def fake_execute(*cmd, **kwargs):
self.executes.append(cmd)
return None, None
self.stubs.Set(utils, 'execute', fake_execute)
def test_lxc_destroy_container(self):
def proc_mounts(self, mount_point):
mount_points = {
'/mnt/loop/nopart': '/dev/loop0',
'/mnt/loop/part': '/dev/mapper/loop0p1',
'/mnt/nbd/nopart': '/dev/nbd15',
'/mnt/nbd/part': '/dev/mapper/nbd15p1',
'/mnt/guestfs': 'guestmount',
}
return mount_points[mount_point]
self.stubs.Set(os.path, 'exists', lambda _: True)
self.stubs.Set(disk_api._DiskImage, '_device_for_path', proc_mounts)
expected_commands = []
disk_api.destroy_container('/mnt/loop/nopart')
expected_commands += [
('umount', '/dev/loop0'),
('losetup', '--detach', '/dev/loop0'),
]
disk_api.destroy_container('/mnt/loop/part')
expected_commands += [
('umount', '/dev/mapper/loop0p1'),
('kpartx', '-d', '/dev/loop0'),
('losetup', '--detach', '/dev/loop0'),
]
disk_api.destroy_container('/mnt/nbd/nopart')
expected_commands += [
('umount', '/dev/nbd15'),
('qemu-nbd', '-d', '/dev/nbd15'),
]
disk_api.destroy_container('/mnt/nbd/part')
expected_commands += [
('umount', '/dev/mapper/nbd15p1'),
('kpartx', '-d', '/dev/nbd15'),
('qemu-nbd', '-d', '/dev/nbd15'),
]
disk_api.destroy_container('/mnt/guestfs')
expected_commands += [
('fusermount', '-u', '/mnt/guestfs'),
]
# It's not worth trying to match the last timeout command
self.executes.pop()
self.assertEqual(self.executes, expected_commands)
class TestVirtDiskPaths(test.TestCase):
def setUp(self):
super(TestVirtDiskPaths, self).setUp()
real_execute = utils.execute
def nonroot_execute(*cmd_parts, **kwargs):
kwargs.pop('run_as_root', None)
return real_execute(*cmd_parts, **kwargs)
self.stubs.Set(utils, 'execute', nonroot_execute)
@test.skip_unless(platform.mac_ver()[0] == '', "Unable to test on OSX")
def test_check_safe_path(self):
ret = disk_api._join_and_check_path_within_fs('/foo', 'etc',
'something.conf')
self.assertEquals(ret, '/foo/etc/something.conf')
@test.skip_unless(platform.mac_ver()[0] == '', "Unable to test on OSX")
def test_check_unsafe_path(self):
self.assertRaises(exception.Invalid,
disk_api._join_and_check_path_within_fs,
'/foo', 'etc/../../../something.conf')
@test.skip_unless(platform.mac_ver()[0] == '', "Unable to test on OSX")
def test_inject_files_with_bad_path(self):
self.assertRaises(exception.Invalid,
disk_api._inject_file_into_fs,
'/tmp', '/etc/../../../../etc/passwd',
'hax')
@test.skip_unless(platform.mac_ver()[0] == '', "Unable to test on OSX")
def test_inject_metadata(self):
with utils.tempdir() as tmpdir:
meta_objs = [{"key": "foo", "value": "bar"}]
metadata = {"foo": "bar"}
disk_api._inject_metadata_into_fs(meta_objs, tmpdir)
json_file = os.path.join(tmpdir, 'meta.js')
json_data = jsonutils.loads(open(json_file).read())
self.assertEqual(metadata, json_data)