C# 为什么 Assert.IsInstanceOfType(0.GetType(), typeof(int)) 失败？
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Why does Assert.IsInstanceOfType(0.GetType(), typeof(int)) fail?
提问by Dave
I'm kind of new to unit testing, using Microsoft.VisualStudio.TestTools.UnitTesting;
我对单元测试有点陌生，使用Microsoft.VisualStudio.TestTools.UnitTesting;
The 0.GetType()is actually System.RuntimeType, so what kind of test do I need to write to pass Assert.IsInstanceOfType(0.GetType(), typeof(int))?
的0.GetType()其实是System.RuntimeType，那种测试，以便我需要什么写传递Assert.IsInstanceOfType(0.GetType(), typeof(int))？
--- following up, this is my own user error... Assert.IsInstanceOfType(0, typeof(int))
--- 跟进，这是我自己的用户错误... Assert.IsInstanceOfType(0, typeof(int))
采纳答案by JaredPar
Change the call to the following
将调用更改为以下
Assert.IsInstanceOfType(0, typeof(int));
The first parameter is the object being tested, not the type of the object being tested. by passing 0.GetType(), you were saying is "RunTimeType" an instance of System.int which is false. Under the covers thes call just resolves to
第一个参数是被测试的对象，而不是被测试对象的类型。通过传递 0.GetType()，你说的是“RunTimeType”System.int 的一个实例，它是错误的。在幕后，这些电话只是解决了
if (typeof(int).IsInstanceOfType(0))
回答by Lee
Looks like it should be
看起来应该是
Assert.IsInstanceOfType(0, typeof(int))
Your expression is currently evaluating to see if RunTimeType is an instance of RunTimeType, which it isn't.
您的表达式当前正在评估 RunTimeType 是否是 RunTimeType 的实例，但它不是。
