| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw quick migration |
| 3 | # |
| 4 | # Test clearing unknown autoclear_features flag by qcow2 after |
| 5 | # migration. This test mimics migration to older qemu. |
| 6 | # |
| 7 | # Copyright (c) 2017 Parallels International GmbH |
| 8 | # |
| 9 | # This program is free software; you can redistribute it and/or modify |
| 10 | # it under the terms of the GNU General Public License as published by |
| 11 | # the Free Software Foundation; either version 2 of the License, or |
| 12 | # (at your option) any later version. |
| 13 | # |
| 14 | # This program is distributed in the hope that it will be useful, |
| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | # GNU General Public License for more details. |
| 18 | # |
| 19 | # You should have received a copy of the GNU General Public License |
| 20 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | # |
| 22 | |
| 23 | import os |
| 24 | import iotests |
| 25 | from iotests import qemu_img |
| 26 | |
| 27 | disk = os.path.join(iotests.test_dir, 'disk') |
| 28 | migfile = os.path.join(iotests.test_dir, 'migfile') |
| 29 | |
| 30 | class TestInvalidateAutoclear(iotests.QMPTestCase): |
| 31 | |
| 32 | def tearDown(self): |
| 33 | self.vm_a.shutdown() |
| 34 | self.vm_b.shutdown() |
| 35 | os.remove(disk) |
| 36 | os.remove(migfile) |
| 37 | |
| 38 | def setUp(self): |
| 39 | qemu_img('create', '-f', iotests.imgfmt, disk, '1M') |
| 40 | |
| 41 | self.vm_a = iotests.VM(path_suffix='a').add_drive(disk) |
| 42 | self.vm_a.launch() |
| 43 | |
| 44 | self.vm_b = iotests.VM(path_suffix='b').add_drive(disk) |
| 45 | self.vm_b.add_incoming("exec: cat '" + migfile + "'") |
| 46 | |
| 47 | def test_migration(self): |
| 48 | self.vm_a.cmd('migrate', uri='exec:cat>' + migfile) |
| 49 | self.assertNotEqual(self.vm_a.event_wait("STOP"), None) |
| 50 | |
| 51 | with open(disk, 'r+b') as f: |
| 52 | f.seek(88) # first byte of autoclear_features field |
| 53 | f.write(b'\xff') |
| 54 | |
| 55 | self.vm_b.launch() |
| 56 | while True: |
| 57 | result = self.vm_b.qmp('query-status') |
| 58 | if result['return']['status'] == 'running': |
| 59 | break |
| 60 | |
| 61 | with open(disk, 'rb') as f: |
| 62 | f.seek(88) |
| 63 | self.assertEqual(f.read(1), b'\x00') |
| 64 | |
| 65 | if __name__ == '__main__': |
| 66 | iotests.main(supported_fmts=['qcow2'], |
| 67 | supported_protocols=['file'], |
| 68 | unsupported_imgopts=['compat']) |