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iotests.py: Add qemu_io_silent 

With qemu-io now returning a useful exit code, some tests may find it
sufficient to just query that instead of logging (and filtering) the
whole output.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-5-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2018-05-09 21:43:01 +02:00
parent 6b3aa8485c
commit 745f2bf4a5
1 changed files with 9 additions and 0 deletions
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9
tests/qemu-iotests/iotests.py
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@ -133,6 +133,15 @@ def qemu_io(*args):
sys.stderr.write('qemu-io received signal %i: %s\n' % (-exitcode, ' '.join(args)))
return subp.communicate()[0]
def qemu_io_silent(*args):
'''Run qemu-io and return the exit code, suppressing stdout'''
args = qemu_io_args + list(args)
exitcode = subprocess.call(args, stdout=open('/dev/null', 'w'))
if exitcode < 0:
sys.stderr.write('qemu-io received signal %i: %s\n' %
(-exitcode, ' '.join(args)))
return exitcode
class QemuIoInteractive:
def __init__(self, *args):