b6aed193e5
In many cases we just want an effect of qmp command and want to raise
on failure. Use vm.cmd() method which does exactly this.
The commit is generated by command
git grep -l '\.qmp(' | xargs ./scripts/python_qmp_updater.py
And then, fix self.assertRaises to expect ExecuteError exception in
tests/qemu-iotests/124
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20231006154125.1068348-16-vsementsov@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
160 lines
4.4 KiB
Python
Executable File
160 lines
4.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: rw quick
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#
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# Tests for persistent dirty bitmaps.
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#
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# Copyright: Vladimir Sementsov-Ogievskiy 2015-2017
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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 iotests
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from iotests import qemu_img
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disk = os.path.join(iotests.test_dir, 'disk')
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disk_size = 0x40000000 # 1G
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# regions for qemu_io: (start, count) in bytes
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regions1 = ((0x0fff00, 0x10000),
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(0x200000, 0x100000))
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regions2 = ((0x10000000, 0x20000),
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(0x3fff0000, 0x10000))
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class TestPersistentDirtyBitmap(iotests.QMPTestCase):
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def setUp(self):
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qemu_img('create', '-f', iotests.imgfmt, disk, str(disk_size))
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def tearDown(self):
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os.remove(disk)
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def mkVm(self):
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return iotests.VM().add_drive(disk, opts='node-name=node0')
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def mkVmRo(self):
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return iotests.VM().add_drive(disk, opts='readonly=on,node-name=node0')
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def getSha256(self):
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result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
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node='drive0', name='bitmap0')
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return result['return']['sha256']
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def checkBitmap(self, sha256):
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result = self.vm.qmp('x-debug-block-dirty-bitmap-sha256',
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node='drive0', name='bitmap0')
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self.assert_qmp(result, 'return/sha256', sha256);
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def writeRegions(self, regions):
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for r in regions:
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self.vm.hmp_qemu_io('drive0',
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'write %d %d' % r)
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def qmpAddBitmap(self):
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self.vm.qmp('block-dirty-bitmap-add', node='drive0',
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name='bitmap0', persistent=True)
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def test_persistent(self):
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self.vm = self.mkVm()
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self.vm.launch()
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self.qmpAddBitmap()
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self.writeRegions(regions1)
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sha256 = self.getSha256()
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self.vm.shutdown()
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self.vm = self.mkVmRo()
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self.vm.launch()
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self.vm.shutdown()
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#catch 'Persistent bitmaps are lost' possible error
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log = self.vm.get_log()
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log = re.sub(r'^\[I \d+\.\d+\] OPENED\n', '', log)
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log = re.sub(r'\[I \+\d+\.\d+\] CLOSED\n?$', '', log)
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if log:
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print(log)
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self.vm = self.mkVm()
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self.vm.launch()
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self.checkBitmap(sha256)
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self.writeRegions(regions2)
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sha256 = self.getSha256()
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self.vm.shutdown()
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self.vm.launch()
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self.checkBitmap(sha256)
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self.vm.shutdown()
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def test_reopen_rw(self):
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self.vm = self.mkVm()
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self.vm.launch()
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self.qmpAddBitmap()
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# Calculate hashes
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self.writeRegions(regions1)
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sha256_1 = self.getSha256()
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self.writeRegions(regions2)
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sha256_2 = self.getSha256()
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assert sha256_1 != sha256_2 # Otherwise, it's not very interesting.
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self.vm.cmd('block-dirty-bitmap-clear', node='drive0',
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name='bitmap0')
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# Start with regions1
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self.writeRegions(regions1)
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assert sha256_1 == self.getSha256()
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self.vm.shutdown()
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self.vm = self.mkVmRo()
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self.vm.launch()
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assert sha256_1 == self.getSha256()
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# Check that we are in RO mode and can't modify bitmap.
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self.writeRegions(regions2)
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assert sha256_1 == self.getSha256()
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# Reopen to RW
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self.vm.cmd('blockdev-reopen', options=[{
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'node-name': 'node0',
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': disk
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},
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'read-only': False
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}])
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# Check that bitmap is reopened to RW and we can write to it.
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self.writeRegions(regions2)
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assert sha256_2 == self.getSha256()
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self.vm.shutdown()
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'],
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supported_protocols=['file'],
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unsupported_imgopts=['compat'])
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