103cbc771e
Most of our Python unittest-style tests only support the file protocol. You can run them with any other protocol, but the test will simply ignore your choice and use file anyway. We should let them signal that they require the file protocol so they are skipped when you want to test some other protocol. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
108 lines
3.1 KiB
Python
Executable file
108 lines
3.1 KiB
Python
Executable file
#!/usr/bin/env python
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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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from __future__ import print_function
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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)
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def mkVmRo(self):
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return iotests.VM().add_drive(disk, opts='readonly=on')
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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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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'],
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supported_protocols=['file'])
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