677e0bae68
The test prints qcow2 header fields which depends on chosen compression type. So, let's be explicit in what compression type we want and independent of IMGOPTS. Test both existing compression types. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-Id: <20211223160144.1097696-8-vsementsov@virtuozzo.com> Signed-off-by: Hanna Reitz <hreitz@redhat.com>
73 lines
2.1 KiB
Python
Executable File
73 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: rw quick
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#
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# Test for dumping of qcow2 image metadata
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#
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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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import subprocess
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from iotests import qemu_img_create, qemu_io, file_path, log, filter_qemu_io
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iotests.script_initialize(supported_fmts=['qcow2'],
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unsupported_imgopts=['refcount_bits', 'compat'])
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disk = file_path('disk')
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chunk = 1024 * 1024
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def create_bitmap(bitmap_number, disabled):
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granularity = 1 << (14 + bitmap_number)
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bitmap_name = 'bitmap-' + str(bitmap_number)
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args = ['bitmap', '--add', '-g', f'{granularity}', '-f', iotests.imgfmt,
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disk, bitmap_name]
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if disabled:
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args.append('--disable')
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iotests.qemu_img_pipe(*args)
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def write_to_disk(offset, size):
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write = f'write {offset} {size}'
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log(qemu_io('-c', write, disk), filters=[filter_qemu_io])
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def add_bitmap(num, begin, end, disabled):
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log(f'Add bitmap {num}')
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create_bitmap(num, disabled)
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for i in range(begin, end):
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write_to_disk((i) * chunk, chunk)
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log('')
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def test(compression_type: str, json_output: bool) -> None:
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qemu_img_create('-f', iotests.imgfmt,
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'-o', f'compression_type={compression_type}',
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disk, '10M')
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add_bitmap(1, 0, 6, False)
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add_bitmap(2, 6, 8, True)
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cmd = ['./qcow2.py', disk, 'dump-header']
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if json_output:
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cmd.append('-j')
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subprocess.run(cmd)
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test('zlib', False)
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test('zstd', True)
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