def test_good_command(self):
        parser = make_argparser(foo_command)
        info = StringInfo()
        with info.open("w") as f:
            status = non_exiting_main(parser, [], stdout=f)
        self.assertEqual(status, 0)
        self.assertEqual(info.value, "foo")
Finds a free loopback device that can be used. The loopback is stored in :attr:`loopback`. If *use_loopback*
dataset/ETHPy150Open cjerdonek/open-rcv/openrcv/test/scripts/test_run.py/NonExitingMainTest.test_good_command--crossover with--dataset/ETHPy150Open ralphje/imagemounter/imagemounter/volume.py/Volume._find_loopback