iotests: new test 209 for NBD BLOCK_STATUS

#!/usr/bin/env python

#

# Tests for NBD BLOCK_STATUS extension

#

# Copyright (c) 2018 Virtuozzo International GmbH

#

# 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 iotests

from iotests import qemu_img_create, qemu_io, qemu_img_verbose, qemu_nbd, \

                    file_path

iotests.verify_image_format(supported_fmts=['qcow2'])

disk, nbd_sock = file_path('disk', 'nbd-sock')

nbd_uri = 'nbd+unix:///exp?socket=' + nbd_sock

qemu_img_create('-f', iotests.imgfmt, disk, '1M')

qemu_io('-f', iotests.imgfmt, '-c', 'write 0 512K', disk)

qemu_nbd('-k', nbd_sock, '-x', 'exp', '-f', iotests.imgfmt, disk)

qemu_img_verbose('map', '-f', 'raw', '--output=json', nbd_uri)

[{ "start": 0, "length": 524288, "depth": 0, "zero": false, "data": true},

{ "start": 524288, "length": 524288, "depth": 0, "zero": true, "data": false}]

206 rw auto

207 rw auto

208 rw auto quick

209 rw auto quick