QA output created by 301

== qcow backed by qcow ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=33554432
qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
image: TEST_DIR/t.IMGFMT
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
cluster_size: 512
backing file: TEST_DIR/t.IMGFMT.base

== mismatched command line detection ==
qemu-img: TEST_DIR/t.IMGFMT: invalid VMDK image descriptor
Could not open backing image.
qemu-img: TEST_DIR/t.IMGFMT: invalid VMDK image descriptor
Could not open backing image.

qemu-img: TEST_DIR/t.IMGFMT: Image creation needs a size parameter
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=vmdk

qemu-img: TEST_DIR/t.IMGFMT: Unknown driver 'garbage'
Could not open backing image.
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=garbage
qemu-img: TEST_DIR/t.IMGFMT: unrecognized backing format 'garbage'
image: TEST_DIR/t.IMGFMT
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
cluster_size: 512
backing file: TEST_DIR/t.IMGFMT.base

== qcow backed by raw ==
qemu-img: TEST_DIR/t.IMGFMT: Backing file specified without backing format
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=raw
image: TEST_DIR/t.IMGFMT
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
cluster_size: 512
backing file: TEST_DIR/t.IMGFMT.base

== commit cannot change type of raw backing file ==
Formatting 'TEST_DIR/t.qcow.IMGFMT', fmt=IMGFMT size=33554432
qemu-img: Block job failed: Operation not permitted
image: TEST_DIR/t.IMGFMT.base
file format: raw
virtual size: 32 MiB (33554432 bytes)
*** done