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iotests: Add more qemu_img helpers

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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>
This commit is contained in:
Nir Soffer 2020-07-28 00:58:45 +03:00 committed by Eric Blake
parent b7719bcad2
commit 4b914b01cd
1 changed files with 6 additions and 0 deletions
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6
tests/qemu-iotests/iotests.py
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@ -141,6 +141,12 @@ def qemu_img_create(*args):
return qemu_img(*args) return qemu_img(*args)
def qemu_img_measure(*args):
return json.loads(qemu_img_pipe("measure", "--output", "json", *args))
def qemu_img_check(*args):
return json.loads(qemu_img_pipe("check", "--output", "json", *args))
def qemu_img_verbose(*args): def qemu_img_verbose(*args):
'''Run qemu-img without suppressing its output and return the exit code''' '''Run qemu-img without suppressing its output and return the exit code'''
exitcode = subprocess.call(qemu_img_args + list(args)) exitcode = subprocess.call(qemu_img_args + list(args))