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9dd003a998
We are going to drop group file. Define group in tests as a preparatory
step.
The patch is generated by
cd tests/qemu-iotests
grep '^[0-9]\{3\} ' group | while read line; do
file=$(awk '{print $1}' <<< "$line");
groups=$(sed -e 's/^... //' <<< "$line");
awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
cat tmp > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
323 lines
12 KiB
Python
Executable File
323 lines
12 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: rw
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#
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# Test whether the backing BDSs are correct after completion of a
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# mirror block job; in "existing" modes (drive-mirror with
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# mode=existing and blockdev-mirror) the backing chain should not be
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# overridden.
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#
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# Copyright (C) 2016 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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import os
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import iotests
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from iotests import qemu_img
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back0_img = os.path.join(iotests.test_dir, 'back0.' + iotests.imgfmt)
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back1_img = os.path.join(iotests.test_dir, 'back1.' + iotests.imgfmt)
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back2_img = os.path.join(iotests.test_dir, 'back2.' + iotests.imgfmt)
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source_img = os.path.join(iotests.test_dir, 'source.' + iotests.imgfmt)
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target_img = os.path.join(iotests.test_dir, 'target.' + iotests.imgfmt)
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# Class variables for controlling its behavior:
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#
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# existing: If True, explicitly create the target image and blockdev-add it
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# target_backing: If existing is True: Use this filename as the backing file
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# of the target image
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# (None: no backing file)
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# target_blockdev_backing: If existing is True: Pass this dict as "backing"
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# for the blockdev-add command
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# (None: do not pass "backing")
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# target_real_backing: If existing is True: The real filename of the backing
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# image during runtime, only makes sense if
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# target_blockdev_backing is not None
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# (None: same as target_backing)
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# target_open_with_backing: If True, the target image is added with its backing
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# chain opened right away. If False, blockdev-add
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# opens it without a backing file and job completion
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# is supposed to open the backing chain.
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# use_iothread: If True, an iothread is configured for the virtio-blk device
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# that uses the image being mirrored
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class BaseClass(iotests.QMPTestCase):
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target_blockdev_backing = None
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target_real_backing = None
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target_open_with_backing = True
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use_iothread = False
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def setUp(self):
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qemu_img('create', '-f', iotests.imgfmt, back0_img, '1440K')
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qemu_img('create', '-f', iotests.imgfmt, '-b', back0_img,
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'-F', iotests.imgfmt, back1_img)
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qemu_img('create', '-f', iotests.imgfmt, '-b', back1_img,
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'-F', iotests.imgfmt, back2_img)
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qemu_img('create', '-f', iotests.imgfmt, '-b', back2_img,
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'-F', iotests.imgfmt, source_img)
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self.vm = iotests.VM()
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# Add the BDS via blockdev-add so it stays around after the mirror block
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# job has been completed
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blockdev = {'node-name': 'source',
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'driver': iotests.imgfmt,
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'file': {'driver': 'file',
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'filename': source_img}}
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self.vm.add_blockdev(self.vm.qmp_to_opts(blockdev))
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if self.use_iothread:
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self.vm.add_object('iothread,id=iothread0')
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iothread = ",iothread=iothread0"
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else:
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iothread = ""
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self.vm.add_device('virtio-scsi%s' % iothread)
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self.vm.add_device('scsi-hd,id=qdev0,drive=source')
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self.vm.launch()
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self.assertIntactSourceBackingChain()
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if self.existing:
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if self.target_backing:
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qemu_img('create', '-f', iotests.imgfmt,
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'-b', self.target_backing, '-F', 'raw',
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target_img, '1440K')
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else:
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qemu_img('create', '-f', iotests.imgfmt, target_img, '1440K')
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if self.cmd == 'blockdev-mirror':
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options = { 'node-name': 'target',
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'driver': iotests.imgfmt,
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'file': { 'driver': 'file',
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'node-name': 'target-file',
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'filename': target_img } }
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if not self.target_open_with_backing:
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options['backing'] = None
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elif self.target_blockdev_backing:
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options['backing'] = self.target_blockdev_backing
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result = self.vm.qmp('blockdev-add', **options)
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self.assert_qmp(result, 'return', {})
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def tearDown(self):
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self.vm.shutdown()
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os.remove(source_img)
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os.remove(back2_img)
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os.remove(back1_img)
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os.remove(back0_img)
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try:
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os.remove(target_img)
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except OSError:
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pass
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def findBlockNode(self, node_name, qdev=None):
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if qdev:
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result = self.vm.qmp('query-block')
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for device in result['return']:
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if device['qdev'] == qdev:
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if node_name:
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self.assert_qmp(device, 'inserted/node-name', node_name)
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return device['inserted']
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else:
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result = self.vm.qmp('query-named-block-nodes')
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for node in result['return']:
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if node['node-name'] == node_name:
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return node
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self.fail('Cannot find node %s/%s' % (qdev, node_name))
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def assertIntactSourceBackingChain(self):
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node = self.findBlockNode('source')
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self.assert_qmp(node, 'image' + '/backing-image' * 0 + '/filename',
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source_img)
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self.assert_qmp(node, 'image' + '/backing-image' * 1 + '/filename',
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back2_img)
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self.assert_qmp(node, 'image' + '/backing-image' * 2 + '/filename',
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back1_img)
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self.assert_qmp(node, 'image' + '/backing-image' * 3 + '/filename',
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back0_img)
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self.assert_qmp_absent(node, 'image' + '/backing-image' * 4)
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def assertCorrectBackingImage(self, node, default_image):
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if self.existing:
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if self.target_real_backing:
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image = self.target_real_backing
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else:
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image = self.target_backing
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else:
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image = default_image
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if image:
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self.assert_qmp(node, 'image/backing-image/filename', image)
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else:
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self.assert_qmp_absent(node, 'image/backing-image')
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# Class variables for controlling its behavior:
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#
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# cmd: Mirroring command to execute, either drive-mirror or blockdev-mirror
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class MirrorBaseClass(BaseClass):
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def openBacking(self):
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pass
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def runMirror(self, sync):
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if self.cmd == 'blockdev-mirror':
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result = self.vm.qmp(self.cmd, job_id='mirror-job', device='source',
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sync=sync, target='target',
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auto_finalize=False)
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else:
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if self.existing:
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mode = 'existing'
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else:
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mode = 'absolute-paths'
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result = self.vm.qmp(self.cmd, job_id='mirror-job', device='source',
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sync=sync, target=target_img,
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format=iotests.imgfmt, mode=mode,
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node_name='target', auto_finalize=False)
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self.assert_qmp(result, 'return', {})
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self.vm.run_job('mirror-job', auto_finalize=False,
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pre_finalize=self.openBacking, auto_dismiss=True)
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def testFull(self):
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self.runMirror('full')
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node = self.findBlockNode('target', 'qdev0')
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self.assertCorrectBackingImage(node, None)
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self.assertIntactSourceBackingChain()
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def testTop(self):
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self.runMirror('top')
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node = self.findBlockNode('target', 'qdev0')
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self.assertCorrectBackingImage(node, back2_img)
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self.assertIntactSourceBackingChain()
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def testNone(self):
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self.runMirror('none')
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node = self.findBlockNode('target', 'qdev0')
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self.assertCorrectBackingImage(node, source_img)
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self.assertIntactSourceBackingChain()
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class TestDriveMirrorAbsolutePaths(MirrorBaseClass):
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cmd = 'drive-mirror'
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existing = False
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class TestDriveMirrorExistingNoBacking(MirrorBaseClass):
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cmd = 'drive-mirror'
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existing = True
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target_backing = None
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class TestDriveMirrorExistingBacking(MirrorBaseClass):
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cmd = 'drive-mirror'
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existing = True
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target_backing = 'null-co://'
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class TestBlockdevMirrorNoBacking(MirrorBaseClass):
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cmd = 'blockdev-mirror'
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existing = True
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target_backing = None
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class TestBlockdevMirrorBacking(MirrorBaseClass):
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cmd = 'blockdev-mirror'
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existing = True
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target_backing = 'null-co://'
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class TestBlockdevMirrorForcedBacking(MirrorBaseClass):
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cmd = 'blockdev-mirror'
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existing = True
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target_backing = None
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target_blockdev_backing = { 'driver': 'null-co' }
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target_real_backing = 'null-co://'
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# Attach the backing chain only during completion, with blockdev-reopen
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class TestBlockdevMirrorReopen(MirrorBaseClass):
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cmd = 'blockdev-mirror'
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existing = True
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target_backing = 'null-co://'
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target_open_with_backing = False
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def openBacking(self):
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if not self.target_open_with_backing:
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result = self.vm.qmp('blockdev-add', node_name="backing",
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driver="null-co")
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('x-blockdev-reopen', node_name="target",
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driver=iotests.imgfmt, file="target-file",
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backing="backing")
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self.assert_qmp(result, 'return', {})
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class TestBlockdevMirrorReopenIothread(TestBlockdevMirrorReopen):
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use_iothread = True
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# Attach the backing chain only during completion, with blockdev-snapshot
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class TestBlockdevMirrorSnapshot(MirrorBaseClass):
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cmd = 'blockdev-mirror'
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existing = True
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target_backing = 'null-co://'
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target_open_with_backing = False
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def openBacking(self):
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if not self.target_open_with_backing:
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result = self.vm.qmp('blockdev-add', node_name="backing",
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driver="null-co")
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('blockdev-snapshot', node="backing",
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overlay="target")
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self.assert_qmp(result, 'return', {})
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class TestBlockdevMirrorSnapshotIothread(TestBlockdevMirrorSnapshot):
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use_iothread = True
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class TestCommit(BaseClass):
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existing = False
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def testCommit(self):
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result = self.vm.qmp('block-commit', job_id='commit-job',
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device='source', base=back1_img)
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self.assert_qmp(result, 'return', {})
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self.vm.event_wait('BLOCK_JOB_READY')
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result = self.vm.qmp('block-job-complete', device='commit-job')
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self.assert_qmp(result, 'return', {})
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self.vm.event_wait('BLOCK_JOB_COMPLETED')
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node = self.findBlockNode(None, 'qdev0')
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self.assert_qmp(node, 'image' + '/backing-image' * 0 + '/filename',
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back1_img)
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self.assert_qmp(node, 'image' + '/backing-image' * 1 + '/filename',
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back0_img)
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self.assert_qmp_absent(node, 'image' + '/backing-image' * 2 +
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'/filename')
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self.assertIntactSourceBackingChain()
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BaseClass = None
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MirrorBaseClass = None
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'],
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supported_protocols=['file'])
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