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69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
#!/usr/bin/env python3
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# group: rw quick migration
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#
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# Test clearing unknown autoclear_features flag by qcow2 after
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# migration. This test mimics migration to older qemu.
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#
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# Copyright (c) 2017 Parallels International GmbH
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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 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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migfile = os.path.join(iotests.test_dir, 'migfile')
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class TestInvalidateAutoclear(iotests.QMPTestCase):
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def tearDown(self):
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self.vm_a.shutdown()
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self.vm_b.shutdown()
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os.remove(disk)
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os.remove(migfile)
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def setUp(self):
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qemu_img('create', '-f', iotests.imgfmt, disk, '1M')
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self.vm_a = iotests.VM(path_suffix='a').add_drive(disk)
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self.vm_a.launch()
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self.vm_b = iotests.VM(path_suffix='b').add_drive(disk)
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self.vm_b.add_incoming("exec: cat '" + migfile + "'")
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def test_migration(self):
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self.vm_a.cmd('migrate', uri='exec:cat>' + migfile)
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self.assertNotEqual(self.vm_a.event_wait("STOP"), None)
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with open(disk, 'r+b') as f:
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f.seek(88) # first byte of autoclear_features field
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f.write(b'\xff')
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self.vm_b.launch()
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while True:
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result = self.vm_b.qmp('query-status')
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if result['return']['status'] == 'running':
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break
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with open(disk, 'rb') as f:
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f.seek(88)
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self.assertEqual(f.read(1), b'\x00')
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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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