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iotests: Test convert -n to pre-filled image 

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190724171239.8764-11-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
master
Max Reitz 2019-07-24 19:12:38 +02:00
parent 5a840549ee
commit c2acc95bef
2 changed files with 25 additions and 0 deletions
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17
tests/qemu-iotests/122
View File

@ -257,6 +257,23 @@ for min_sparse in 4k 8k; do
$QEMU_IMG map --output=json "$TEST_IMG".orig | _filter_qemu_img_map
done
echo
echo '=== -n to a non-zero image ==='
echo
# Keep source zero
_make_test_img 64M
# Output is not zero, but has bdrv_has_zero_init() == 1
TEST_IMG="$TEST_IMG".orig _make_test_img 64M
$QEMU_IO -c "write -P 42 0 64k" "$TEST_IMG".orig | _filter_qemu_io
# Convert with -n, which should not assume that the target is zeroed
$QEMU_IMG convert -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG".orig
$QEMU_IMG compare "$TEST_IMG" "$TEST_IMG".orig
# success, all done
echo '*** done'
rm -f $seq.full

8
tests/qemu-iotests/122.out
View File

@ -220,4 +220,12 @@ convert -c -S 8k
{ "start": 9216, "length": 8192, "depth": 0, "zero": true, "data": false},
{ "start": 17408, "length": 1024, "depth": 0, "zero": false, "data": true},
{ "start": 18432, "length": 67090432, "depth": 0, "zero": true, "data": false}]
=== -n to a non-zero image ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
Formatting 'TEST_DIR/t.IMGFMT.orig', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Images are identical.
*** done