70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
#!/usr/bin/env python
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#
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# Test that snapshots move the throttling configuration to the active
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# layer
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#
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# Copyright (C) 2015 Igalia, S.L.
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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 iotests
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import os
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class TestLiveSnapshot(iotests.QMPTestCase):
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base_img = os.path.join(iotests.test_dir, 'base.img')
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target_img = os.path.join(iotests.test_dir, 'target.img')
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group = 'mygroup'
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iops = 6000
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iops_size = 1024
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def setUp(self):
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opts = []
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opts.append('node-name=base')
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opts.append('throttling.group=%s' % self.group)
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opts.append('throttling.iops-total=%d' % self.iops)
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opts.append('throttling.iops-size=%d' % self.iops_size)
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iotests.qemu_img('create', '-f', iotests.imgfmt, self.base_img, '100M')
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self.vm = iotests.VM().add_drive(self.base_img, ','.join(opts))
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self.vm.launch()
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def tearDown(self):
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self.vm.shutdown()
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os.remove(self.base_img)
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os.remove(self.target_img)
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def checkConfig(self, active_layer):
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result = self.vm.qmp('query-named-block-nodes')
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for r in result['return']:
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if r['node-name'] == active_layer:
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self.assertEqual(r['group'], self.group)
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self.assertEqual(r['iops'], self.iops)
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self.assertEqual(r['iops_size'], self.iops_size)
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else:
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self.assertFalse(r.has_key('group'))
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self.assertEqual(r['iops'], 0)
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self.assertFalse(r.has_key('iops_size'))
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def testSnapshot(self):
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self.checkConfig('base')
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self.vm.qmp('blockdev-snapshot-sync',
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node_name = 'base',
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snapshot_node_name = 'target',
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snapshot_file = self.target_img,
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format = iotests.imgfmt)
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self.checkConfig('target')
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'])
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