def METHOD_NAME(example):
    model, args = example
    q_f, p_f, _, _ = velocity_verlet(
        args.q_i,
        args.p_i,
        model.potential_fn,
        model.kinetic_grad,
        args.step_size,
        args.num_steps,
    )
    logger.info("initial q: {}".format(args.q_i))
    logger.info("final q: {}".format(q_f))
    assert_equal(q_f, args.q_f, args.prec)
    assert_equal(p_f, args.p_f, args.prec)