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>
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@ -141,6 +141,12 @@ def qemu_img_create(*args):
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return qemu_img(*args)
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return qemu_img(*args)
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def qemu_img_measure(*args):
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return json.loads(qemu_img_pipe("measure", "--output", "json", *args))
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def qemu_img_check(*args):
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return json.loads(qemu_img_pipe("check", "--output", "json", *args))
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def qemu_img_verbose(*args):
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def qemu_img_verbose(*args):
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'''Run qemu-img without suppressing its output and return the exit code'''
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'''Run qemu-img without suppressing its output and return the exit code'''
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exitcode = subprocess.call(qemu_img_args + list(args))
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exitcode = subprocess.call(qemu_img_args + list(args))
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