[Qemu-devel] qemu iotest 020 failing for vmdk after 2b7731938d9

[John Snow]

Commit 2b7731938d9 adds a blkdebug driver test for failing commits, but
the vmdk driver doesn't appear to appreciate this format:

+_qemu_img_wrapper create -f vmdk -b "json:{'driver': 'raw',
+                         'file': {
+                             'driver': 'blkdebug',
+                             'inject-error': [{
+                                 'event': 'write_aio',
+                                 'errno': 28,
+                                 'once': true
+                             }],
+                             'image': {
+                                 'driver': 'null-co'
+                             }}}"
"/home/bos/jhuston/src/qemu/bin/git/tests/qemu-iotests/scratch/t.vmdk"
+qemu-img: TEST_DIR/t.IMGFMT: Could not create image: Invalid argument


...so;

(A) VMDK should be dropped from 020, or
(B) This sub-test should be rewritten, or
(C) This sub-test should be split out into a new unit where VMDK can be
dropped.

I don't like (A) very much because I like testing our weird formats when
possible, I don't like (B) very much because I don't really like
wrangling QMP commands inside of the bash unit tests.

(C) Could work; though it's odd to have it away from its kin in 020.

Opinions?

--js