qemu-e2k/tests/qemu-iotests/tests/export-incoming-iothread

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Python
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#!/usr/bin/env python3
# group: rw quick migration
#
# Regression test for issue 945:
# https://gitlab.com/qemu-project/qemu/-/issues/945
# Test adding an export on top of an iothread-ed block device while in
# -incoming defer.
#
# Copyright (C) 2022 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/>.
#
import os
import iotests
from iotests import qemu_img_create
image_size = 1 * 1024 * 1024
test_img = os.path.join(iotests.test_dir, 'test.img')
node_name = 'node0'
iothread_id = 'iothr0'
nbd_sock = os.path.join(iotests.sock_dir, 'nbd.sock')
class TestExportIncomingIothread(iotests.QMPTestCase):
def setUp(self) -> None:
qemu_img_create('-f', iotests.imgfmt, test_img, str(image_size))
self.vm = iotests.VM()
self.vm.add_object(f'iothread,id={iothread_id}')
self.vm.add_blockdev((
f'driver={iotests.imgfmt}',
f'node-name={node_name}',
'file.driver=file',
f'file.filename={test_img}'
))
self.vm.add_incoming('defer')
self.vm.launch()
def tearDown(self):
self.vm.shutdown()
os.remove(test_img)
def test_export_add(self):
result = self.vm.qmp('nbd-server-start', {
'addr': {
'type': 'unix',
'data': {
'path': nbd_sock
}
}
})
self.assert_qmp(result, 'return', {})
# Regression test for issue 945: This should not fail an assertion
result = self.vm.qmp('block-export-add', {
'type': 'nbd',
'id': 'exp0',
'node-name': node_name,
'iothread': iothread_id
})
self.assert_qmp(result, 'return', {})
if __name__ == '__main__':
iotests.main(supported_fmts=['generic'],
unsupported_fmts=['luks'], # Would need a secret
supported_protocols=['file'])