| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Test that snapshots move the throttling configuration to the active |
| 5 | # layer |
| 6 | # |
| 7 | # Copyright (C) 2015 Igalia, S.L. |
| 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 iotests |
| 24 | import os |
| 25 | |
| 26 | class TestLiveSnapshot(iotests.QMPTestCase): |
| 27 | base_img = os.path.join(iotests.test_dir, 'base.img') |
| 28 | target_img = os.path.join(iotests.test_dir, 'target.img') |
| 29 | group = 'mygroup' |
| 30 | iops = 6000 |
| 31 | iops_size = 1024 |
| 32 | |
| 33 | def setUp(self): |
| 34 | opts = [] |
| 35 | opts.append('node-name=base') |
| 36 | opts.append('throttling.group=%s' % self.group) |
| 37 | opts.append('throttling.iops-total=%d' % self.iops) |
| 38 | opts.append('throttling.iops-size=%d' % self.iops_size) |
| 39 | iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, '100M') |
| 40 | self.vm = iotests.VM().add_drive(self.base_img, ','.join(opts)) |
| 41 | self.vm.launch() |
| 42 | |
| 43 | def tearDown(self): |
| 44 | self.vm.shutdown() |
| 45 | os.remove(self.base_img) |
| 46 | os.remove(self.target_img) |
| 47 | |
| 48 | def checkConfig(self, active_layer): |
| 49 | result = self.vm.qmp('query-block') |
| 50 | for r in result['return']: |
| 51 | r = r['inserted'] |
| 52 | if r['node-name'] == active_layer: |
| 53 | self.assertEqual(r['group'], self.group) |
| 54 | self.assertEqual(r['iops'], self.iops) |
| 55 | self.assertEqual(r['iops_size'], self.iops_size) |
| 56 | else: |
| 57 | self.assertFalse('group' in r) |
| 58 | self.assertEqual(r['iops'], 0) |
| 59 | self.assertFalse('iops_size' in r) |
| 60 | |
| 61 | def testSnapshot(self): |
| 62 | self.checkConfig('base') |
| 63 | self.vm.qmp('blockdev-snapshot-sync', |
| 64 | node_name = 'base', |
| 65 | snapshot_node_name = 'target', |
| 66 | snapshot_file = self.target_img, |
| 67 | format = iotests.imgfmt) |
| 68 | self.checkConfig('target') |
| 69 | |
| 70 | if __name__ == '__main__': |
| 71 | iotests.main(supported_fmts=['qcow2'], |
| 72 | supported_protocols=['file']) |