87e4d4a205
Test 297 in tests/qemu-iotests currently fails: pylint has learned new things to check, or we simply missed them. All fixes in this patch are related to additional spaces used or wrong indentation. No functional change intended. Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Message-Id: <20211008062821.1010967-2-eesposit@redhat.com> Signed-off-by: Hanna Reitz <hreitz@redhat.com>
118 lines
3.9 KiB
Python
Executable file
118 lines
3.9 KiB
Python
Executable file
#!/usr/bin/env python3
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# group: rw quick
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#
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# Copy-on-read tests using a COR filter with a bottom node
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#
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# Copyright (C) 2018 Red Hat, Inc.
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# Copyright (c) 2020 Virtuozzo International GmbH
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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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from iotests import log, qemu_img, qemu_io_silent
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# Need backing file support
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iotests.script_initialize(supported_fmts=['qcow2'],
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supported_platforms=['linux'])
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log('')
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log('=== Copy-on-read across nodes ===')
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log('')
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# This test is similar to the 216 one by Max Reitz <mreitz@redhat.com>
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# The difference is that this test case involves a bottom node to the
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# COR filter driver.
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with iotests.FilePath('base.img') as base_img_path, \
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iotests.FilePath('mid.img') as mid_img_path, \
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iotests.FilePath('top.img') as top_img_path, \
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iotests.VM() as vm:
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log('--- Setting up images ---')
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log('')
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assert qemu_img('create', '-f', iotests.imgfmt, base_img_path, '64M') == 0
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assert qemu_io_silent(base_img_path, '-c', 'write -P 1 0M 1M') == 0
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assert qemu_io_silent(base_img_path, '-c', 'write -P 1 3M 1M') == 0
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assert qemu_img('create', '-f', iotests.imgfmt, '-b', base_img_path,
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'-F', iotests.imgfmt, mid_img_path) == 0
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assert qemu_io_silent(mid_img_path, '-c', 'write -P 3 2M 1M') == 0
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assert qemu_io_silent(mid_img_path, '-c', 'write -P 3 4M 1M') == 0
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assert qemu_img('create', '-f', iotests.imgfmt, '-b', mid_img_path,
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'-F', iotests.imgfmt, top_img_path) == 0
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assert qemu_io_silent(top_img_path, '-c', 'write -P 2 1M 1M') == 0
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# 0 1 2 3 4
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# top 2
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# mid 3 3
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# base 1 1
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log('Done')
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log('')
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log('--- Doing COR ---')
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log('')
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vm.launch()
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log(vm.qmp('blockdev-add',
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node_name='node0',
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driver='copy-on-read',
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bottom='node2',
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file={
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': top_img_path
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},
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'backing': {
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'node-name': 'node2',
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': mid_img_path
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},
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'backing': {
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': base_img_path
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}
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},
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}
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}))
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# Trigger COR
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log(vm.qmp('human-monitor-command',
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command_line='qemu-io node0 "read 0 5M"'))
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vm.shutdown()
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log('')
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log('--- Checking COR result ---')
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log('')
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# Detach backing to check that we can read the data from the top level now
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assert qemu_img('rebase', '-u', '-b', '', '-f', iotests.imgfmt,
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top_img_path) == 0
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assert qemu_io_silent(top_img_path, '-c', 'read -P 0 0 1M') == 0
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assert qemu_io_silent(top_img_path, '-c', 'read -P 2 1M 1M') == 0
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assert qemu_io_silent(top_img_path, '-c', 'read -P 3 2M 1M') == 0
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assert qemu_io_silent(top_img_path, '-c', 'read -P 0 3M 1M') == 0
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assert qemu_io_silent(top_img_path, '-c', 'read -P 3 4M 1M') == 0
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log('Done')
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