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-rwxr-xr-xtests/qemu-iotests/07813
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/qemu-iotests/078 b/tests/qemu-iotests/078
index 902ef0f036..872e734cab 100755
--- a/tests/qemu-iotests/078
+++ b/tests/qemu-iotests/078
@@ -43,6 +43,7 @@ _supported_proto generic
_supported_os Linux
catalog_size_offset=$((0x48))
+extent_size_offset=$((0x50))
disk_size_offset=$((0x58))
echo
@@ -68,6 +69,18 @@ _use_sample_img empty.bochs.bz2
poke_file "$TEST_IMG" "$disk_size_offset" "\x00\xc0\x0f\x00\x00\x00\x00\x7f"
{ $QEMU_IO -c "read 2T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+echo
+echo "== Negative extent size =="
+_use_sample_img empty.bochs.bz2
+poke_file "$TEST_IMG" "$extent_size_offset" "\xff\xff\xff\xff"
+{ $QEMU_IO -c "read 768k 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+echo
+echo "== Zero extent size =="
+_use_sample_img empty.bochs.bz2
+poke_file "$TEST_IMG" "$extent_size_offset" "\x00\x00\x00\x00"
+{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
# success, all done
echo "*** done"
rm -f $seq.full