def then_i_cannot_verify_the_user_with_incorrect_challenge(step):
    try:
        api_handler.verify_user(world.mobile_number, world.password, world.sms_challenge, "VERY UNLIKELY CHALLENGE")
        raise BaseException("Was able to verify client with incorrect challenge")
    except api_handler.WebserviceException:
        pass
def then_i_can_verify_the_user(step):
    world.client_uid = api_handler.verify_user(world.mobile_number, world.password, world.sms_challenge, world.client_challenge)