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# Copyright (C) 2012 Yahoo! Inc.
# 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 oslotest import base as test_base
import testscenarios
from oslo_utils import imageutils
load_tests = testscenarios.load_tests_apply_scenarios
class ImageUtilsRawTestCase(test_base.BaseTestCase):
_image_name = [
('disk_config', dict(image_name='disk.config')),
]
_file_format = [
('raw', dict(file_format='raw')),
]
_virtual_size = [
('64M', dict(virtual_size='64M',
exp_virtual_size=67108864)),
('64M_with_byte_hint', dict(virtual_size='64M (67108844 bytes)',
exp_virtual_size=67108844)),
('64M_byte', dict(virtual_size='67108844',
exp_virtual_size=67108844)),
('64_MiB_with_byte_hint', dict(virtual_size='64 MiB (67108844 bytes)',
exp_virtual_size=67108844)),
('4.4M', dict(virtual_size='4.4M',
exp_virtual_size=4613735)),
('4.4M_with_byte_hint', dict(virtual_size='4.4M (4592640 bytes)',
exp_virtual_size=4592640)),
('4.4_MiB_with_byte_hint', dict(virtual_size='4.4 MiB (4592640 bytes)',
exp_virtual_size=4592640)),
('2K', dict(virtual_size='2K',
exp_virtual_size=2048)),
('2K_with_byte_hint', dict(virtual_size='2K (2048 bytes)',
exp_virtual_size=2048)),
('2_KiB_with_byte_hint', dict(virtual_size='2 KiB (2048 bytes)',
exp_virtual_size=2048)),
]
_disk_size = [
('96K', dict(disk_size='96K',
exp_disk_size=98304)),
('96_KiB', dict(disk_size='96 KiB',
exp_disk_size=98304)),
('96K_byte', dict(disk_size='98304',
exp_disk_size=98304)),
('98304_B', dict(disk_size='98304 B',
exp_disk_size=98304)),
('3.1G', dict(disk_size='3.1G',
exp_disk_size=3328599655)),
('3.1_GiB', dict(disk_size='3.1 GiB',
exp_disk_size=3328599655)),
('unavailable', dict(disk_size='unavailable',
exp_disk_size=0)),
('1e+03 MiB', dict(disk_size='1e+03 MiB',
exp_disk_size=1048576000)),
]
_garbage_before_snapshot = [
('no_garbage', dict(garbage_before_snapshot=None)),
('garbage_before_snapshot_list', dict(garbage_before_snapshot=False)),
('garbage_after_snapshot_list', dict(garbage_before_snapshot=True)),
]
_snapshot_count = [
('no_snapshots', dict(snapshot_count=None)),
('one_snapshots', dict(snapshot_count=1)),
('three_snapshots', dict(snapshot_count=3)),
]
@classmethod
def generate_scenarios(cls):
cls.scenarios = testscenarios.multiply_scenarios(
cls._image_name,
cls._file_format,
cls._virtual_size,
cls._disk_size,
cls._garbage_before_snapshot,
cls._snapshot_count)
def _initialize_img_info(self):
return ('image: %s' % self.image_name,
'file_format: %s' % self.file_format,
'virtual_size: %s' % self.virtual_size,
'disk_size: %s' % self.disk_size)
def _insert_snapshots(self, img_info):
img_info = img_info + ('Snapshot list:',)
img_info = img_info + ('ID '
'TAG '
'VM SIZE '
'DATE '
'VM CLOCK',)
for i in range(self.snapshot_count):
img_info = img_info + ('%d '
'd9a9784a500742a7bb95627bb3aace38 '
'0 2012-08-20 10:52:46 '
'00:00:00.000' % (i + 1),)
return img_info
def _base_validation(self, image_info):
self.assertEqual(image_info.image, self.image_name)
self.assertEqual(image_info.file_format, self.file_format)
self.assertEqual(image_info.virtual_size, self.exp_virtual_size)
self.assertEqual(image_info.disk_size, self.exp_disk_size)
if self.snapshot_count is not None:
self.assertEqual(len(image_info.snapshots), self.snapshot_count)
def test_qemu_img_info(self):
img_info = self._initialize_img_info()
if self.garbage_before_snapshot is True:
img_info = img_info + ('blah BLAH: bb',)
if self.snapshot_count is not None:
img_info = self._insert_snapshots(img_info)
if self.garbage_before_snapshot is False:
img_info = img_info + ('junk stuff: bbb',)
example_output = '\n'.join(img_info)
image_info = imageutils.QemuImgInfo(example_output)
self._base_validation(image_info)
ImageUtilsRawTestCase.generate_scenarios()
class ImageUtilsQemuTestCase(ImageUtilsRawTestCase):
_file_format = [
('qcow2', dict(file_format='qcow2')),
]
_qcow2_cluster_size = [
('65536', dict(cluster_size='65536', exp_cluster_size=65536)),
]
_qcow2_encrypted = [
('no_encryption', dict(encrypted=None)),
('encrypted', dict(encrypted='yes')),
]
_qcow2_backing_file = [
('no_backing_file', dict(backing_file=None)),
('backing_file_path',
dict(backing_file='/var/lib/nova/a328c7998805951a_2',
exp_backing_file='/var/lib/nova/a328c7998805951a_2')),
('backing_file_path_with_actual_path',
dict(backing_file='/var/lib/nova/a328c7998805951a_2 '
'(actual path: /b/3a988059e51a_2)',
exp_backing_file='/b/3a988059e51a_2')),
]
@classmethod
def generate_scenarios(cls):
cls.scenarios = testscenarios.multiply_scenarios(
cls._image_name,
cls._file_format,
cls._virtual_size,
cls._disk_size,
cls._garbage_before_snapshot,
cls._snapshot_count,
cls._qcow2_cluster_size,
cls._qcow2_encrypted,
cls._qcow2_backing_file)
def test_qemu_img_info(self):
img_info = self._initialize_img_info()
img_info = img_info + ('cluster_size: %s' % self.cluster_size,)
if self.backing_file is not None:
img_info = img_info + ('backing file: %s' %
self.backing_file,)
if self.encrypted is not None:
img_info = img_info + ('encrypted: %s' % self.encrypted,)
if self.garbage_before_snapshot is True:
img_info = img_info + ('blah BLAH: bb',)
if self.snapshot_count is not None:
img_info = self._insert_snapshots(img_info)
if self.garbage_before_snapshot is False:
img_info = img_info + ('junk stuff: bbb',)
example_output = '\n'.join(img_info)
image_info = imageutils.QemuImgInfo(example_output)
self._base_validation(image_info)
self.assertEqual(image_info.cluster_size, self.exp_cluster_size)
if self.backing_file is not None:
self.assertEqual(image_info.backing_file,
self.exp_backing_file)
if self.encrypted is not None:
self.assertEqual(image_info.encrypted, self.encrypted)
ImageUtilsQemuTestCase.generate_scenarios()
class ImageUtilsBlankTestCase(test_base.BaseTestCase):
def test_qemu_img_info_blank(self):
example_output = '\n'.join(['image: None', 'file_format: None',
'virtual_size: None', 'disk_size: None',
'cluster_size: None',
'backing_file: None'])
image_info = imageutils.QemuImgInfo()
self.assertEqual(str(image_info), example_output)
self.assertEqual(len(image_info.snapshots), 0)
class ImageUtilsJSONTestCase(test_base.BaseTestCase):
def test_qemu_img_info_json_format(self):
img_output = '''{
"virtual-size": 41126400,
"filename": "fake_img",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 13168640,
"format-specific": {"data": {"foo": "bar"}}
}'''
image_info = imageutils.QemuImgInfo(img_output, format='json')
self.assertEqual(41126400, image_info.virtual_size)
self.assertEqual('fake_img', image_info.image)
self.assertEqual(65536, image_info.cluster_size)
self.assertEqual('qcow2', image_info.file_format)
self.assertEqual(13168640, image_info.disk_size)
self.assertEqual("bar", image_info.format_specific["data"]["foo"])
def test_qemu_img_info_json_format_blank(self):
img_output = '{}'
image_info = imageutils.QemuImgInfo(img_output, format='json')
self.assertIsNone(image_info.virtual_size)
self.assertIsNone(image_info.image)
self.assertIsNone(image_info.cluster_size)
self.assertIsNone(image_info.file_format)
self.assertIsNone(image_info.disk_size)
self.assertIsNone(image_info.format_specific)
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