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From: Max Reitz <mreitz@redhat.com>
To: qemu-block@nongnu.org
Subject: [PULL 32/34] tests/qemu-iotests: add case to write compressed data of
multiple clusters
Date: Mon, 6 Jan 2020 15:42:04 +0100
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From: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Add the case to the iotest #214 that checks possibility of writing
compressed data of more than one cluster size. The test case involves
the compress filter driver showing a sample usage of that.
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1575288906-551879-4-git-send-email-andrey.shinkevich@virtuozzo.=
com
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
tests/qemu-iotests/214 | 43 ++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/214.out | 14 +++++++++++++
2 files changed, 57 insertions(+)
diff --git a/tests/qemu-iotests/214 b/tests/qemu-iotests/214
index 0f2e61280a..3500e0c47a 100755
--- a/tests/qemu-iotests/214
+++ b/tests/qemu-iotests/214
@@ -90,6 +90,49 @@ _check_test_img -r all
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _fi=
lter_testdir
$QEMU_IO -c "read -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _fi=
lter_testdir
=20
+echo
+echo "=3D=3D=3D Write compressed data of multiple clusters =3D=3D=3D"
+echo
+cluster_size=3D0x10000
+_make_test_img 2M -o cluster_size=3D$cluster_size
+
+echo "Write uncompressed data:"
+let data_size=3D"8 * $cluster_size"
+$QEMU_IO -c "write -P 0xaa 0 $data_size" "$TEST_IMG" \
+ 2>&1 | _filter_qemu_io | _filter_testdir
+sizeA=3D$($QEMU_IMG info --output=3Djson "$TEST_IMG" |
+ sed -n '/"actual-size":/ s/[^0-9]//gp')
+
+_make_test_img 2M -o cluster_size=3D$cluster_size
+echo "Write compressed data:"
+let data_size=3D"3 * $cluster_size + $cluster_size / 2"
+# Set compress on. That will align the written data
+# by the cluster size and will write them compressed.
+QEMU_IO_OPTIONS=3D$QEMU_IO_OPTIONS_NO_FMT \
+$QEMU_IO -c "write -P 0xbb 0 $data_size" --image-opts \
+ "driver=3Dcompress,file.driver=3D$IMGFMT,file.file.driver=3Dfile,=
file.file.filename=3D$TEST_IMG" \
+ 2>&1 | _filter_qemu_io | _filter_testdir
+
+let offset=3D"4 * $cluster_size + $cluster_size / 4"
+QEMU_IO_OPTIONS=3D$QEMU_IO_OPTIONS_NO_FMT \
+$QEMU_IO -c "write -P 0xcc $offset $data_size" "json:{\
+ 'driver': 'compress',
+ 'file': {'driver': '$IMGFMT',
+ 'file': {'driver': 'file',
+ 'filename': '$TEST_IMG'}}}" | \
+ _filter_qemu_io | _filter_testdir
+
+sizeB=3D$($QEMU_IMG info --output=3Djson "$TEST_IMG" |
+ sed -n '/"actual-size":/ s/[^0-9]//gp')
+
+if [ $sizeA -le $sizeB ]
+then
+ echo "Compression ERROR"
+fi
+
+$QEMU_IMG check --output=3Djson "$TEST_IMG" |
+ sed -n 's/,$//; /"compressed-clusters":/ s/^ *//p'
+
# success, all done
echo '*** done'
rm -f $seq.full
diff --git a/tests/qemu-iotests/214.out b/tests/qemu-iotests/214.out
index 0fcd8dc051..9fc67287f8 100644
--- a/tests/qemu-iotests/214.out
+++ b/tests/qemu-iotests/214.out
@@ -32,4 +32,18 @@ read 4194304/4194304 bytes at offset 0
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 4194304/4194304 bytes at offset 4194304
4 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+=3D=3D=3D Write compressed data of multiple clusters =3D=3D=3D
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D2097152
+Write uncompressed data:
+wrote 524288/524288 bytes at offset 0
+512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D2097152
+Write compressed data:
+wrote 229376/229376 bytes at offset 0
+224 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 229376/229376 bytes at offset 278528
+224 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+"compressed-clusters": 8
*** done
--=20
2.24.1