4 # Test for dumping of qcow2 image metadata
6 # Copyright (c) 2020 Virtuozzo International GmbH
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 from iotests import qemu_img_create, qemu_io, file_path, log, filter_qemu_io
26 iotests.script_initialize(supported_fmts=['qcow2'],
27 unsupported_imgopts=['refcount_bits', 'compat'])
29 disk = file_path('disk')
33 def create_bitmap(bitmap_number, disabled):
34 granularity = 1 << (14 + bitmap_number)
35 bitmap_name = 'bitmap-' + str(bitmap_number)
36 args = ['bitmap', '--add', '-g', f'{granularity}', '-f', iotests.imgfmt,
39 args.append('--disable')
41 iotests.qemu_img(*args)
44 def write_to_disk(offset, size):
45 write = f'write {offset} {size}'
46 log(qemu_io('-c', write, disk), filters=[filter_qemu_io])
49 def add_bitmap(num, begin, end, disabled):
50 log(f'Add bitmap {num}')
51 create_bitmap(num, disabled)
52 for i in range(begin, end):
53 write_to_disk((i) * chunk, chunk)
57 def test(compression_type: str, json_output: bool) -> None:
58 qemu_img_create('-f', iotests.imgfmt,
59 '-o', f'compression_type={compression_type}',
61 add_bitmap(1, 0, 6, False)
62 add_bitmap(2, 6, 8, True)
64 cmd = ['./qcow2.py', disk, 'dump-header']