| #!/usr/bin/env python3 |
| # group: rw quick |
| # |
| # Test that snapshots move the throttling configuration to the active |
| # layer |
| # |
| # Copyright (C) 2015 Igalia, S.L. |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| import iotests |
| import os |
| |
| class TestLiveSnapshot(iotests.QMPTestCase): |
| base_img = os.path.join(iotests.test_dir, 'base.img') |
| target_img = os.path.join(iotests.test_dir, 'target.img') |
| group = 'mygroup' |
| iops = 6000 |
| iops_size = 1024 |
| |
| def setUp(self): |
| opts = [] |
| opts.append('node-name=base') |
| opts.append('throttling.group=%s' % self.group) |
| opts.append('throttling.iops-total=%d' % self.iops) |
| opts.append('throttling.iops-size=%d' % self.iops_size) |
| iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, '100M') |
| self.vm = iotests.VM().add_drive(self.base_img, ','.join(opts)) |
| self.vm.launch() |
| |
| def tearDown(self): |
| self.vm.shutdown() |
| os.remove(self.base_img) |
| os.remove(self.target_img) |
| |
| def checkConfig(self, active_layer): |
| result = self.vm.qmp('query-block') |
| for r in result['return']: |
| r = r['inserted'] |
| if r['node-name'] == active_layer: |
| self.assertEqual(r['group'], self.group) |
| self.assertEqual(r['iops'], self.iops) |
| self.assertEqual(r['iops_size'], self.iops_size) |
| else: |
| self.assertFalse('group' in r) |
| self.assertEqual(r['iops'], 0) |
| self.assertFalse('iops_size' in r) |
| |
| def testSnapshot(self): |
| self.checkConfig('base') |
| self.vm.qmp('blockdev-snapshot-sync', |
| node_name = 'base', |
| snapshot_node_name = 'target', |
| snapshot_file = self.target_img, |
| format = iotests.imgfmt) |
| self.checkConfig('target') |
| |
| if __name__ == '__main__': |
| iotests.main(supported_fmts=['qcow2'], |
| supported_protocols=['file']) |
