qemu/tests/qemu-iotests/065

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#!/usr/bin/env python3
# group: rw quick
#
# Test for additional information emitted by qemu-img info on qcow2
# images
#
# Copyright (C) 2013 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os
import re
import json
import iotests
from iotests import qemu_img, qemu_img_info, supports_qcow2_zstd_compression
import unittest
test_img = os.path.join(iotests.test_dir, 'test.img')
class TestImageInfoSpecific(iotests.QMPTestCase):
'''Abstract base class for ImageInfoSpecific tests'''
def setUp(self):
if self.img_options is None:
self.skipTest('Skipping abstract test class')
qemu_img('create', '-f', iotests.imgfmt, '-o', self.img_options,
test_img, '128K')
def tearDown(self):
os.remove(test_img)
class TestQemuImgInfo(TestImageInfoSpecific):
'''Abstract base class for qemu-img info tests'''
img_options = None
json_compare = None
human_compare = None
def test_json(self):
data = qemu_img_info(test_img)['format-specific']
self.assertEqual(data['type'], iotests.imgfmt)
self.assertEqual(data['data'], self.json_compare)
def test_human(self):
data = qemu_img('info', '--output=human', test_img).stdout.split('\n')
data = data[(data.index('Format specific information:') + 1)
:data.index("Child node '/file':")]
for field in data:
self.assertTrue(re.match('^ {4}[^ ]', field) is not None)
data = [line.strip() for line in data]
self.assertEqual(data, self.human_compare)
class TestQMP(TestImageInfoSpecific):
'''Abstract base class for qemu QMP tests'''
img_options = None
qemu_options = ''
TestImageInfoSpecific = TestImageInfoSpecific
def setUp(self):
self.TestImageInfoSpecific.setUp(self)
self.vm = iotests.VM().add_drive(test_img, self.qemu_options)
self.vm.launch()
def tearDown(self):
self.vm.shutdown()
self.TestImageInfoSpecific.tearDown(self)
def test_qmp(self):
result = self.vm.qmp('query-block')['return']
drive = next(drive for drive in result if drive['device'] == 'drive0')
data = drive['inserted']['image']['format-specific']
self.assertEqual(data['type'], iotests.imgfmt)
self.assertEqual(data['data'], self.compare)
class TestQCow2(TestQemuImgInfo):
'''Testing a qcow2 version 2 image'''
img_options = 'compat=0.10,compression_type=zlib'
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
json_compare = { 'compat': '0.10', 'refcount-bits': 16,
'compression-type': 'zlib' }
human_compare = [ 'compat: 0.10', 'compression type: zlib',
'refcount bits: 16' ]
class TestQCow3NotLazy(TestQemuImgInfo):
'''Testing a qcow2 version 3 image with lazy refcounts disabled'''
if supports_qcow2_zstd_compression():
compression_type = 'zstd'
else:
compression_type = 'zlib'
img_options = 'compat=1.1,lazy_refcounts=off'
img_options += f',compression_type={compression_type}'
json_compare = { 'compat': '1.1', 'lazy-refcounts': False,
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
'refcount-bits': 16, 'corrupt': False,
'compression-type': compression_type, 'extended-l2': False }
human_compare = [ 'compat: 1.1', f'compression type: {compression_type}',
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
'lazy refcounts: false', 'refcount bits: 16',
'corrupt: false', 'extended l2: false' ]
class TestQCow3Lazy(TestQemuImgInfo):
'''Testing a qcow2 version 3 image with lazy refcounts enabled'''
img_options = 'compat=1.1,lazy_refcounts=on,compression_type=zlib'
json_compare = { 'compat': '1.1', 'lazy-refcounts': True,
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
'refcount-bits': 16, 'corrupt': False,
'compression-type': 'zlib', 'extended-l2': False }
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
human_compare = [ 'compat: 1.1', 'compression type: zlib',
'lazy refcounts: true', 'refcount bits: 16',
'corrupt: false', 'extended l2: false' ]
class TestQCow3NotLazyQMP(TestQMP):
'''Testing a qcow2 version 3 image with lazy refcounts disabled, opening
with lazy refcounts enabled'''
img_options = 'compat=1.1,lazy_refcounts=off,compression_type=zlib'
qemu_options = 'lazy-refcounts=on'
compare = { 'compat': '1.1', 'lazy-refcounts': False,
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
'refcount-bits': 16, 'corrupt': False,
'compression-type': 'zlib', 'extended-l2': False }
class TestQCow3LazyQMP(TestQMP):
'''Testing a qcow2 version 3 image with lazy refcounts enabled, opening
with lazy refcounts disabled'''
if supports_qcow2_zstd_compression():
compression_type = 'zstd'
else:
compression_type = 'zlib'
img_options = 'compat=1.1,lazy_refcounts=on'
img_options += f',compression_type={compression_type}'
qemu_options = 'lazy-refcounts=off'
compare = { 'compat': '1.1', 'lazy-refcounts': True,
qcow2: introduce compression type feature The patch adds some preparation parts for incompatible compression type feature to qcow2 allowing the use different compression methods for image clusters (de)compressing. It is implied that the compression type is set on the image creation and can be changed only later by image conversion, thus compression type defines the only compression algorithm used for the image, and thus, for all image clusters. The goal of the feature is to add support of other compression methods to qcow2. For example, ZSTD which is more effective on compression than ZLIB. The default compression is ZLIB. Images created with ZLIB compression type are backward compatible with older qemu versions. Adding of the compression type breaks a number of tests because now the compression type is reported on image creation and there are some changes in the qcow2 header in size and offsets. The tests are fixed in the following ways: * filter out compression_type for many tests * fix header size, feature table size and backing file offset affected tests: 031, 036, 061, 080 header_size +=8: 1 byte compression type 7 bytes padding feature_table += 48: incompatible feature compression type backing_file_offset += 56 (8 + 48 -> header_change + feature_table_change) * add "compression type" for test output matching when it isn't filtered affected tests: 049, 060, 061, 065, 082, 085, 144, 182, 185, 198, 206, 242, 255, 274, 280 Signed-off-by: Denis Plotnikov <dplotnikov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> QAPI part: Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200507082521.29210-2-dplotnikov@virtuozzo.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-05-07 11:25:18 +03:00
'refcount-bits': 16, 'corrupt': False,
'compression-type': compression_type, 'extended-l2': False }
TestImageInfoSpecific = None
TestQemuImgInfo = None
TestQMP = None
if __name__ == '__main__':
iotests.main(supported_fmts=['qcow2'],
supported_protocols=['file'],
unsupported_imgopts=['refcount_bits'])