QA output created by 294
== creating a test image ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432

== test that key 0 opens the image ==
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

== adding a password to slot 1 ==

== 'backup' the image header ==
1+0 records in
1+0 records out

== erase slot 0 ==

== test that key 0 doesn't open the image ==
qemu-io: can't open: Invalid password, cannot unlock any keyslot

== 'restore' the image header ==
1+0 records in
1+0 records out

== test that key 0 still doesn't open the image (key material is erased) ==
qemu-io: can't open: Invalid password, cannot unlock any keyslot

== test that key 1 still works ==
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
*** done