def METHOD_NAME(self):
    sys.argv += ["-i", "localhost", "-p", "0"]
    pyftpdlib.__main__.main()
    sys.argv = self.SYSARGV[:]
    # no argument
    sys.argv += ["-a"]
    sys.stderr = self.devnull
    self.assertRaises(SystemExit, pyftpdlib.__main__.main)