强制调用虚拟基函数而不是重写基函数

在下面的示例中,“test that v1 function was called”失败。是否有方法通过“Class v2”实例强制调用“RunFunction”的基本实现?

    class V1 
    {
        public virtual string RunFunction()
        {
            return "V1";
        }
    }

    class V2 : V1
    {
        public override string RunFunction()
        {
            return "V2";
        }
    }



    [Test]
    public void TestCall()
    {
        var v1 = (V1)new V2();
        var v2 = new V2();

        Assert.IsTrue(v1.RunFunction() == "V1", "Test that v1 function was called");
        Assert.IsTrue(v2.RunFunction() == "V2", "Test that v2 function was called");
    }

谢谢你们的关注,伙计们。