def METHOD_NAME(self):
    """
    Tests assigning a sysctl value that is already set in sysctl.conf file
    """
    # Always start with a clean/known sysctl.conf state
    if os.path.isfile(CONFIG):
        os.remove(CONFIG)
    try:
        self.run_function("sysctl.persist", [ASSIGN_CMD, 50])
        ret = self.run_function("sysctl.persist", [ASSIGN_CMD, 50])
        self.assertEqual(ret, "Already set")
    except CommandExecutionError:
        os.remove(CONFIG)
        raise