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0709c5a153
Add the bit width of every refcount entry to the format-specific information. In contrast to lazy_refcounts and the corrupt flag, this should be always emitted, even for compat=0.10 although it does not support any refcount width other than 16 bits. This is because if a boolean is optional, one normally assumes it to be false when omitted; but if an integer is not specified, it is rather difficult to guess its value. This new field breaks some test outputs, fix them. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
133 lines
4.7 KiB
Python
Executable File
133 lines
4.7 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Test for additional information emitted by qemu-img info on qcow2
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# images
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#
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# Copyright (C) 2013 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import re
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import json
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import iotests
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from iotests import qemu_img, qemu_img_pipe
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import unittest
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test_img = os.path.join(iotests.test_dir, 'test.img')
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class TestImageInfoSpecific(iotests.QMPTestCase):
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'''Abstract base class for ImageInfoSpecific tests'''
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def setUp(self):
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if self.img_options is None:
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self.skipTest('Skipping abstract test class')
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qemu_img('create', '-f', iotests.imgfmt, '-o', self.img_options,
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test_img, '128K')
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def tearDown(self):
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os.remove(test_img)
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class TestQemuImgInfo(TestImageInfoSpecific):
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'''Abstract base class for qemu-img info tests'''
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img_options = None
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json_compare = None
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human_compare = None
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def test_json(self):
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data = json.loads(qemu_img_pipe('info', '--output=json', test_img))
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data = data['format-specific']
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self.assertEqual(data['type'], iotests.imgfmt)
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self.assertEqual(data['data'], self.json_compare)
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def test_human(self):
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data = qemu_img_pipe('info', '--output=human', test_img).split('\n')
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data = data[(data.index('Format specific information:') + 1)
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:data.index('')]
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for field in data:
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self.assertTrue(re.match('^ {4}[^ ]', field) is not None)
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data = map(lambda line: line.strip(), data)
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self.assertEqual(data, self.human_compare)
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class TestQMP(TestImageInfoSpecific):
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'''Abstract base class for qemu QMP tests'''
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img_options = None
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qemu_options = ''
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TestImageInfoSpecific = TestImageInfoSpecific
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def setUp(self):
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self.TestImageInfoSpecific.setUp(self)
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self.vm = iotests.VM().add_drive(test_img, self.qemu_options)
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self.vm.launch()
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def tearDown(self):
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self.vm.shutdown()
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self.TestImageInfoSpecific.tearDown(self)
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def test_qmp(self):
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result = self.vm.qmp('query-block')['return']
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drive = filter(lambda drive: drive['device'] == 'drive0', result)[0]
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data = drive['inserted']['image']['format-specific']
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self.assertEqual(data['type'], iotests.imgfmt)
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self.assertEqual(data['data'], self.compare)
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class TestQCow2(TestQemuImgInfo):
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'''Testing a qcow2 version 2 image'''
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img_options = 'compat=0.10'
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json_compare = { 'compat': '0.10', 'refcount-bits': 16 }
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human_compare = [ 'compat: 0.10', 'refcount bits: 16' ]
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class TestQCow3NotLazy(TestQemuImgInfo):
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'''Testing a qcow2 version 3 image with lazy refcounts disabled'''
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img_options = 'compat=1.1,lazy_refcounts=off'
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json_compare = { 'compat': '1.1', 'lazy-refcounts': False,
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'refcount-bits': 16, 'corrupt': False }
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human_compare = [ 'compat: 1.1', 'lazy refcounts: false',
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'refcount bits: 16', 'corrupt: false' ]
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class TestQCow3Lazy(TestQemuImgInfo):
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'''Testing a qcow2 version 3 image with lazy refcounts enabled'''
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img_options = 'compat=1.1,lazy_refcounts=on'
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json_compare = { 'compat': '1.1', 'lazy-refcounts': True,
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'refcount-bits': 16, 'corrupt': False }
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human_compare = [ 'compat: 1.1', 'lazy refcounts: true',
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'refcount bits: 16', 'corrupt: false' ]
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class TestQCow3NotLazyQMP(TestQMP):
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'''Testing a qcow2 version 3 image with lazy refcounts disabled, opening
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with lazy refcounts enabled'''
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img_options = 'compat=1.1,lazy_refcounts=off'
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qemu_options = 'lazy-refcounts=on'
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compare = { 'compat': '1.1', 'lazy-refcounts': False,
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'refcount-bits': 16, 'corrupt': False }
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class TestQCow3LazyQMP(TestQMP):
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'''Testing a qcow2 version 3 image with lazy refcounts enabled, opening
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with lazy refcounts disabled'''
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img_options = 'compat=1.1,lazy_refcounts=on'
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qemu_options = 'lazy-refcounts=off'
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compare = { 'compat': '1.1', 'lazy-refcounts': True,
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'refcount-bits': 16, 'corrupt': False }
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TestImageInfoSpecific = None
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TestQemuImgInfo = None
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TestQMP = None
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'])
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