"Cannot verify on real object - use a fake object instead" 异常

Question

我使用的是 Typemock Isolator 8.6.2.0 版。我有以下类:

public class A
{
    public B b { get; }

    public A()
    {
        b = new B();
    }
}

public class B
{
    public B()
    {
        Console.WriteLine("In B c'tor");
    }
    public void doSomething()
    {

    }
}

测试方法为：

public void test()
{
    Isolate.Fake.NextInstance<B>();
    A a = new A();
    var bObject = a.b;
    bObject.doSomething();
    Isolate.Verify.WasCalledWithAnyArguments(() => bObject.doSomething());
}

当我运行测试时，我得到以下异常："Cannot verify on real object - use a fake object instead"，但是对象是伪造的！有谁知道它为什么会发生以及我该如何解决？

Answer 1

NextInstance returns 可以调用 Verify 的句柄。现在，您将返回的句柄扔掉。

根据 http://www.typemock.com/docs/?book=Isolator&page=Documentation%2FHtmlDocs%2Ffakingfutureinstances.htm

上的文档

Verifying is done on the instance returned from Isolate.Fake.NextInstance.

Answer 2

像这样写你的测试： `

   public void test()
   {
       var fake = Isolate.Fake.NextInstance<B>();
       A a = new A();
       var bObject = a.b;
       bObject.doSomething();
       Isolate.Verify.WasCalledWithAnyArguments(() => fake.doSomething());

   }

`

"Cannot verify on real object - use a fake object instead" 异常

"Cannot verify on real object - use a fake object instead" exception

c#

unit-testing

mocking

typemock

typemock-isolator