[PATCH v2 3/3] iotests, parallels: Add a test for duplicated clusters

[alexander . ivanov]

From: Alexander Ivanov <alexander.ivanov@virtuozzo.com>

Check if original and duplicated offsets refer to the same cluster.
Repair the image and check that writing to a referred cluster
doesn't affects another referred cluster.

Signed-off-by: Natalia Kuzmina <natalia.kuzmina@openvz.org>
Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
---
 tests/qemu-iotests/314                        |  89 ++++++++++++++++++
 tests/qemu-iotests/314.out                    |  36 +++++++
 .../parallels-2-duplicated-cluster.bz2        | Bin 0 -> 148 bytes
 3 files changed, 125 insertions(+)
 create mode 100755 tests/qemu-iotests/314
 create mode 100644 tests/qemu-iotests/314.out
 create mode 100644 
tests/qemu-iotests/sample_images/parallels-2-duplicated-cluster.bz2

diff --git a/tests/qemu-iotests/314 b/tests/qemu-iotests/314
new file mode 100755
index 0000000000..79b4d3a749
--- /dev/null
+++ b/tests/qemu-iotests/314
@@ -0,0 +1,89 @@
+#!/usr/bin/env bash
+# group: rw auto quick
+#
+# Test qemu-img check on duplicated clusters
+#
+# Copyright (c) 2022 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/>.
+#
+
+# creator natalia.kuzmina@openvz.org
+
+owner=alexander.ivanov@virtuozzo.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+status=1    # failure is the default!
+
+_cleanup()
+{
+    _cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+. ./common.pattern
+
+_supported_fmt parallels
+_supported_proto file
+_supported_os Linux
+
+echo
+echo "using sample corrupted image"
+echo
+_use_sample_img parallels-2-duplicated-cluster.bz2
+
+CLUSTER_SIZE=65536
+
+#read one cluster from original offset
+$QEMU_IO -c "read -P 0x11 0 $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#read from duplicated offset (data must be the same as on original offset)
+$QEMU_IO -c "read -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#change data from original offset
+$QEMU_IO -c "write -P 0x55 0 $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#read from duplicated offset (data must be the same as on original offset)
+$QEMU_IO -c "read -P 0x55 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+echo
+echo "check and repair the image for parallels format"
+echo
+_check_test_img -r all
+echo
+
+#read one cluster from original offset
+$QEMU_IO -c "read -P 0x55 0 $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#read copied data from new offset
+$QEMU_IO -c "read -P 0x55 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#change data from original offset
+$QEMU_IO -c "write -P 0x11 0 $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+#read from new offset (fail, now this data was left unchanged)
+$QEMU_IO -c "read -P 0x11 $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE" "$TEST_IMG" | \
+    _filter_qemu_io
+
+echo
+echo
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/314.out b/tests/qemu-iotests/314.out
new file mode 100644
index 0000000000..c36022c407
--- /dev/null
+++ b/tests/qemu-iotests/314.out
@@ -0,0 +1,36 @@
+QA output created by 314
+
+using sample corrupted image
+
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 262144
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 262144
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+check and repair the image
+
+Repairing BAT offset in entry 4 duplicates offset in entry 0
+The following inconsistencies were found and repaired:
+
+    0 leaked clusters
+    1 corruptions
+
+Double checking the fixed image now...
+No errors were found on the image.
+
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 262144
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Pattern verification failed at offset 262144, 65536 bytes
+read 65536/65536 bytes at offset 262144
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+
+*** done
diff --git 
a/tests/qemu-iotests/sample_images/parallels-2-duplicated-cluster.bz2 
b/tests/qemu-iotests/sample_images/parallels-2-duplicated-cluster.bz2
new file mode 100644
index 
0000000000000000000000000000000000000000..ee8f0149b5ecffc4fdc5e2c0cf45b731610378af
GIT binary patch
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vm{u|@;OhXBE0|U>d|v){U)AOQJ)h70iu-<&;S?CYW~db}a<vGU0CEKYoE$uo

literal 0
HcmV?d00001

-- 
2.34.1