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tests/qemu-iotests: add case to write compressed data of multiple clusters 

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>
This commit is contained in:
Andrey Shinkevich 2019-12-02 15:15:06 +03:00 committed by Max Reitz
parent 0d483dce38
commit 19959445f5
2 changed files with 57 additions and 0 deletions
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43
tests/qemu-iotests/214
View File

@ -90,6 +90,49 @@ _check_test_img -r all
$QEMU_IO -c "read -P 0x11 0 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
$QEMU_IO -c "read -P 0x22 4M 4M" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
echo
echo "=== Write compressed data of multiple clusters ==="
echo
cluster_size=0x10000
_make_test_img 2M -o cluster_size=$cluster_size
echo "Write uncompressed data:"
let data_size="8 * $cluster_size"
$QEMU_IO -c "write -P 0xaa 0 $data_size" "$TEST_IMG" \
2>&1 | _filter_qemu_io | _filter_testdir
sizeA=$($QEMU_IMG info --output=json "$TEST_IMG" |
sed -n '/"actual-size":/ s/[^0-9]//gp')
_make_test_img 2M -o cluster_size=$cluster_size
echo "Write compressed data:"
let data_size="3 * $cluster_size + $cluster_size / 2"
# Set compress on. That will align the written data
# by the cluster size and will write them compressed.
QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
$QEMU_IO -c "write -P 0xbb 0 $data_size" --image-opts \
"driver=compress,file.driver=$IMGFMT,file.file.driver=file,file.file.filename=$TEST_IMG" \
2>&1 | _filter_qemu_io | _filter_testdir
let offset="4 * $cluster_size + $cluster_size / 4"
QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT \
$QEMU_IO -c "write -P 0xcc $offset $data_size" "json:{\
'driver': 'compress',
'file': {'driver': '$IMGFMT',
'file': {'driver': 'file',
'filename': '$TEST_IMG'}}}" | \
_filter_qemu_io | _filter_testdir
sizeB=$($QEMU_IMG info --output=json "$TEST_IMG" |
sed -n '/"actual-size":/ s/[^0-9]//gp')
if [ $sizeA -le $sizeB ]
then
echo "Compression ERROR"
fi
$QEMU_IMG check --output=json "$TEST_IMG" |
sed -n 's/,$//; /"compressed-clusters":/ s/^ *//p'
# success, all done
echo '*** done'
rm -f $seq.full

14
tests/qemu-iotests/214.out
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@ -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)
=== Write compressed data of multiple clusters ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=2097152
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=IMGFMT size=2097152
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