mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
5.1 KiB
Python
140 lines
5.1 KiB
Python
#!/usr/bin/env python3
|
|
# group: rw quick
|
|
#
|
|
# Test json:{} filenames with qemu-internal BDSs
|
|
# (the one of commit, to be precise)
|
|
#
|
|
# Copyright (C) 2018 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# Creator/Owner: Hanna Reitz <hreitz@redhat.com>
|
|
|
|
import iotests
|
|
from iotests import log, qemu_img, qemu_io, filter_qmp_testfiles, \
|
|
filter_qmp_imgfmt
|
|
import json
|
|
|
|
# Need backing file support (for arbitrary backing formats)
|
|
iotests.script_initialize(supported_fmts=['qcow2', 'qcow', 'qed'],
|
|
supported_platforms=['linux'])
|
|
|
|
|
|
# There are two variations of this test:
|
|
# (1) We do not set filter_node_name. In that case, the commit_top
|
|
# driver should not appear anywhere.
|
|
# (2) We do set filter_node_name. In that case, it should appear.
|
|
#
|
|
# This for loop executes both.
|
|
for filter_node_name in False, True:
|
|
log('')
|
|
log('--- filter_node_name: %s ---' % filter_node_name)
|
|
log('')
|
|
|
|
with iotests.FilePath('base.img') as base_img_path, \
|
|
iotests.FilePath('mid.img') as mid_img_path, \
|
|
iotests.FilePath('top.img') as top_img_path, \
|
|
iotests.VM() as vm:
|
|
|
|
qemu_img('create', '-f', iotests.imgfmt, base_img_path, '64M')
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', base_img_path,
|
|
'-F', iotests.imgfmt, mid_img_path)
|
|
qemu_img('create', '-f', iotests.imgfmt, '-b', mid_img_path,
|
|
'-F', iotests.imgfmt, top_img_path)
|
|
|
|
# Something to commit
|
|
qemu_io(mid_img_path, '-c', 'write -P 1 0 1M')
|
|
|
|
vm.launch()
|
|
|
|
# Change the bottom-most image's backing file (to null-co://)
|
|
# to enforce json:{} filenames
|
|
vm.qmp_log('blockdev-add',
|
|
node_name='top',
|
|
driver=iotests.imgfmt,
|
|
file={
|
|
'driver': 'file',
|
|
'filename': top_img_path
|
|
},
|
|
backing={
|
|
'node-name': 'mid',
|
|
'driver': iotests.imgfmt,
|
|
'file': {
|
|
'driver': 'file',
|
|
'filename': mid_img_path
|
|
},
|
|
'backing': {
|
|
'node-name': 'base',
|
|
'driver': iotests.imgfmt,
|
|
'file': {
|
|
'driver': 'file',
|
|
'filename': base_img_path
|
|
},
|
|
'backing': {
|
|
'driver': 'null-co'
|
|
}
|
|
}
|
|
},
|
|
filters=[filter_qmp_testfiles, filter_qmp_imgfmt])
|
|
|
|
# As long as block-commit does not accept node names, we have to
|
|
# get our mid/base filenames here
|
|
mid_name = vm.node_info('mid')['image']['filename']
|
|
base_name = vm.node_info('base')['image']['filename']
|
|
|
|
assert mid_name[:5] == 'json:'
|
|
assert base_name[:5] == 'json:'
|
|
|
|
# Start the block job
|
|
if filter_node_name:
|
|
vm.qmp_log('block-commit',
|
|
job_id='commit',
|
|
device='top',
|
|
filter_node_name='filter_node',
|
|
top=mid_name,
|
|
base=base_name,
|
|
speed=1,
|
|
filters=[filter_qmp_testfiles, filter_qmp_imgfmt])
|
|
else:
|
|
vm.qmp_log('block-commit',
|
|
job_id='commit',
|
|
device='top',
|
|
top=mid_name,
|
|
base=base_name,
|
|
speed=1,
|
|
filters=[filter_qmp_testfiles, filter_qmp_imgfmt])
|
|
|
|
vm.qmp_log('job-pause', id='commit')
|
|
|
|
# Get and parse top's json:{} filename
|
|
top_name = vm.node_info('top')['image']['filename']
|
|
|
|
vm.shutdown()
|
|
|
|
assert top_name[:5] == 'json:'
|
|
top_options = json.loads(top_name[5:])
|
|
|
|
if filter_node_name:
|
|
# This should be present and set
|
|
assert top_options['backing']['driver'] == 'commit_top'
|
|
# And the mid image is commit_top's backing image
|
|
mid_options = top_options['backing']['backing']
|
|
else:
|
|
# The mid image should appear as the immediate backing BDS
|
|
# of top
|
|
mid_options = top_options['backing']
|
|
|
|
assert mid_options['driver'] == iotests.imgfmt
|
|
assert mid_options['file']['filename'] == mid_img_path
|