[PATCH v2 6/6] iotests: add parallels-read-bitmap test

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Test support for reading bitmap from parallels image format.
parallels-with-bitmap.bz2 is generated on Virtuozzo by
parallels-with-bitmap.sh

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 .../sample_images/parallels-with-bitmap.bz2   | Bin 0 -> 203 bytes
 .../sample_images/parallels-with-bitmap.sh    |  51 ++++++++++++++++
 .../qemu-iotests/tests/parallels-read-bitmap  |  55 ++++++++++++++++++
 .../tests/parallels-read-bitmap.out           |   6 ++
 4 files changed, 112 insertions(+)
 create mode 100644 tests/qemu-iotests/sample_images/parallels-with-bitmap.bz2
 create mode 100755 tests/qemu-iotests/sample_images/parallels-with-bitmap.sh
 create mode 100755 tests/qemu-iotests/tests/parallels-read-bitmap
 create mode 100644 tests/qemu-iotests/tests/parallels-read-bitmap.out

diff --git a/tests/qemu-iotests/sample_images/parallels-with-bitmap.bz2 b/tests/qemu-iotests/sample_images/parallels-with-bitmap.bz2
new file mode 100644
index 0000000000000000000000000000000000000000..54892fd4d01bf743d395bd4f3d896494146ab5a9
GIT binary patch
literal 203
zcmV;+05tzXT4*^jL0KkKS@=;0bpT+Hf7|^?Km<xfFyKQJ7=Y^F-%vt;00~Ysa6|-=
zk&7Szk`SoS002EkfMftPG<ipnsiCK}K_sNmm}me3FiZr%Oaf_u5F8kD;mB_~cxD-r
z5P$(X{&Tq5C`<xK02D?NNdN+t$~z$m00O|zFh^ynq*yaCtkn+NZzWom<#OEoF`?zb
zv(i3x^K~wt!aLPcRBP+PckUsIh6*LgjYSh0`}#7hMC9NR5D)+W0d&8Mxgwk>NPH-R
Fx`3oHQ9u9y

literal 0
HcmV?d00001

diff --git a/tests/qemu-iotests/sample_images/parallels-with-bitmap.sh b/tests/qemu-iotests/sample_images/parallels-with-bitmap.sh
new file mode 100755
index 0000000000..30615aa6bd
--- /dev/null
+++ b/tests/qemu-iotests/sample_images/parallels-with-bitmap.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Test parallels load bitmap
+#
+# Copyright (c) 2021 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/>.
+#
+
+CT=parallels-with-bitmap-ct
+DIR=$PWD/parallels-with-bitmap-dir
+IMG=$DIR/root.hds
+XML=$DIR/DiskDescriptor.xml
+TARGET=parallels-with-bitmap.bz2
+
+rm -rf $DIR
+
+prlctl create $CT --vmtype ct
+prlctl set $CT --device-add hdd --image $DIR --recreate --size 2G
+
+# cleanup the image
+qemu-img create -f parallels $IMG 64G
+
+# create bitmap
+prlctl backup $CT
+
+prlctl set $CT --device-del hdd1
+prlctl destroy $CT
+
+dev=$(ploop mount $XML | sed -n 's/^Adding delta dev=\(\/dev\/ploop[0-9]\+\).*/\1/p')
+dd if=/dev/zero of=$dev bs=64K seek=5 count=2 oflag=direct
+dd if=/dev/zero of=$dev bs=64K seek=30 count=1 oflag=direct
+dd if=/dev/zero of=$dev bs=64K seek=10 count=3 oflag=direct
+ploop umount $XML  # bitmap name will be in the output
+
+bzip2 -z $IMG
+
+mv $IMG.bz2 $TARGET
+
+rm -rf $DIR
diff --git a/tests/qemu-iotests/tests/parallels-read-bitmap b/tests/qemu-iotests/tests/parallels-read-bitmap
new file mode 100755
index 0000000000..af6b9c5db3
--- /dev/null
+++ b/tests/qemu-iotests/tests/parallels-read-bitmap
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+#
+# Test parallels load bitmap
+#
+# Copyright (c) 2021 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 json
+import iotests
+from iotests import qemu_nbd_popen, qemu_img_pipe, log, file_path
+
+iotests.script_initialize(supported_fmts=['parallels'])
+
+nbd_sock = file_path('nbd-sock', base_dir=iotests.sock_dir)
+disk = iotests.file_path('disk')
+bitmap = 'e4f2eed0-37fe-4539-b50b-85d2e7fd235f'
+nbd_opts = f'driver=nbd,server.type=unix,server.path={nbd_sock}' \
+        f',x-dirty-bitmap=qemu:dirty-bitmap:{bitmap}'
+
+
+iotests.unarchive_sample_image('parallels-with-bitmap', disk)
+
+
+with qemu_nbd_popen('--read-only', f'--socket={nbd_sock}',
+                    f'--bitmap={bitmap}', '-f', iotests.imgfmt, disk):
+    out = qemu_img_pipe('map', '--output=json', '--image-opts', nbd_opts)
+    chunks = json.loads(out)
+    cluster = 64 * 1024
+
+    log('dirty clusters (cluster size is 64K):')
+    for c in chunks:
+        assert c['start'] % cluster == 0
+        assert c['length'] % cluster == 0
+        if c['data']:
+            continue
+
+        a = c['start'] // cluster
+        b = (c['start'] + c['length']) // cluster
+        if b - a > 1:
+            log(f'{a}-{b-1}')
+        else:
+            log(a)
diff --git a/tests/qemu-iotests/tests/parallels-read-bitmap.out b/tests/qemu-iotests/tests/parallels-read-bitmap.out
new file mode 100644
index 0000000000..e8f6bc9e96
--- /dev/null
+++ b/tests/qemu-iotests/tests/parallels-read-bitmap.out
@@ -0,0 +1,6 @@
+Start NBD server
+dirty clusters (cluster size is 64K):
+5-6
+10-12
+30
+Kill NBD server
-- 
2.29.2