iotests: Add more qemu_img helpers
commit4b914b01cdb95fe5722cb70826db7f0a262e8d2a
authorNir Soffer <nirsof@gmail.com>
Mon, 27 Jul 2020 21:58:45 +0000 (28 00:58 +0300)
committerEric Blake <eblake@redhat.com>
Tue, 28 Jul 2020 14:54:43 +0000 (28 09:54 -0500)
treee4561ded4eca662bcbe8c1a7b6087439854d2401
parentb7719bcad2e92bab5aae3166fa9011f127e6ee49
iotests: Add more qemu_img helpers

Add 2 helpers for measuring and checking images:
- qemu_img_measure()
- qemu_img_check()

Both use --output-json and parse the returned json to make easy to use
in other tests. I'm going to use them in a new test, and I hope they
will be useful in may other tests.

Signed-off-by: Nir Soffer <nsoffer@redhat.com>
Message-Id: <20200727215846.395443-4-nsoffer@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
tests/qemu-iotests/iotests.py