b6aed193e5
In many cases we just want an effect of qmp command and want to raise
on failure. Use vm.cmd() method which does exactly this.
The commit is generated by command
git grep -l '\.qmp(' | xargs ./scripts/python_qmp_updater.py
And then, fix self.assertRaises to expect ExecuteError exception in
tests/qemu-iotests/124
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20231006154125.1068348-16-vsementsov@yandex-team.ru
Signed-off-by: John Snow <jsnow@redhat.com>
181 lines
4.7 KiB
Python
Executable File
181 lines
4.7 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: rw quick
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#
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# This test covers what happens when a mirror block job is cancelled
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# in various phases of its existence.
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#
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# Note that this test only checks the emitted events (i.e.
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# BLOCK_JOB_COMPLETED vs. BLOCK_JOB_CANCELLED), it does not compare
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# whether the target is in sync with the source when the
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# BLOCK_JOB_COMPLETED event occurs. This is covered by other tests
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# (such as 041).
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#
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# Copyright (C) 2018 Red Hat, Inc.
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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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# Creator/Owner: Hanna Reitz <hreitz@redhat.com>
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import iotests
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from iotests import log, qemu_img, qemu_io
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iotests.script_initialize(supported_fmts=['qcow2', 'raw'])
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# Launches the VM, adds two null-co nodes (source and target), and
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# starts a blockdev-mirror job on them.
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#
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# Either both or none of speed and buf_size must be given.
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def start_mirror(vm, speed=None, buf_size=None):
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vm.launch()
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vm.cmd('blockdev-add',
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node_name='source',
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driver='null-co',
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size=1048576)
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vm.cmd('blockdev-add',
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node_name='target',
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driver='null-co',
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size=1048576)
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if speed is not None:
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vm.cmd('blockdev-mirror',
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job_id='mirror',
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device='source',
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target='target',
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sync='full',
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speed=speed,
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buf_size=buf_size)
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else:
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vm.cmd('blockdev-mirror',
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job_id='mirror',
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device='source',
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target='target',
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sync='full')
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log('')
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log('=== Cancel mirror job before convergence ===')
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log('')
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log('--- force=false ---')
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log('')
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with iotests.VM() as vm:
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# Low speed so it does not converge
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start_mirror(vm, 65536, 65536)
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log('Cancelling job')
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log(vm.qmp('block-job-cancel', device='mirror', force=False))
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log(vm.event_wait('BLOCK_JOB_CANCELLED'),
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filters=[iotests.filter_qmp_event])
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log('')
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log('--- force=true ---')
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log('')
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with iotests.VM() as vm:
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# Low speed so it does not converge
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start_mirror(vm, 65536, 65536)
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log('Cancelling job')
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log(vm.qmp('block-job-cancel', device='mirror', force=True))
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log(vm.event_wait('BLOCK_JOB_CANCELLED'),
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filters=[iotests.filter_qmp_event])
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log('')
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log('=== Cancel mirror job after convergence ===')
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log('')
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log('--- force=false ---')
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log('')
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with iotests.VM() as vm:
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start_mirror(vm)
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log(vm.event_wait('BLOCK_JOB_READY'),
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filters=[iotests.filter_qmp_event])
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log('Cancelling job')
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log(vm.qmp('block-job-cancel', device='mirror', force=False))
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log(vm.event_wait('BLOCK_JOB_COMPLETED'),
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filters=[iotests.filter_qmp_event])
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log('')
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log('--- force=true ---')
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log('')
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with iotests.VM() as vm:
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start_mirror(vm)
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log(vm.event_wait('BLOCK_JOB_READY'),
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filters=[iotests.filter_qmp_event])
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log('Cancelling job')
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log(vm.qmp('block-job-cancel', device='mirror', force=True))
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log(vm.event_wait('BLOCK_JOB_CANCELLED'),
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filters=[iotests.filter_qmp_event])
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log('')
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log('=== Cancel mirror job from throttled node by quitting ===')
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log('')
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with iotests.VM() as vm, \
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iotests.FilePath('src.img') as src_img_path:
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qemu_img('create', '-f', iotests.imgfmt, src_img_path, '64M')
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qemu_io('-f', iotests.imgfmt, src_img_path, '-c', 'write -P 42 0M 64M')
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vm.launch()
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vm.cmd('object-add', qom_type='throttle-group', id='tg',
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limits={'bps-read': 4096})
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vm.cmd('blockdev-add',
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node_name='source',
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driver=iotests.imgfmt,
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file={
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'driver': 'file',
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'filename': src_img_path
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})
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vm.cmd('blockdev-add',
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node_name='throttled-source',
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driver='throttle',
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throttle_group='tg',
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file='source')
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vm.cmd('blockdev-add',
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node_name='target',
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driver='null-co',
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size=(64 * 1048576))
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vm.cmd('blockdev-mirror',
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job_id='mirror',
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device='throttled-source',
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target='target',
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sync='full')
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log(vm.qmp('quit'))
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with iotests.Timeout(5, 'Timeout waiting for VM to quit'):
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vm.shutdown()
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