c# - Rhino Mocks，设置 stub 属性后如何执行操作

Question

我有一个简单的需求，但我似乎很挣扎。

我创建了一个 stub 来模拟一个包含 Property 的 interface :

public interface IMockIRuleRuningViewModel : IRuleRunningViewModel
{
    int Id { get; set; }
}

mock 是:

var mock = MockRepository.GenerateStub<IMockIRuleRuningViewModel>();

现在我想模拟一个我会为这个Property放入setter的 Action ，这是我的尝试:

mock.Stub(x => x.Id).WhenCalled(
    o =>
        {
            var engine = new RulesEngine(mock);
            mock.ProcessRuleEngineResults(engine.RunRule("Id"));
        });

但我不断收到此Exception:

You are trying to set an expectation on a property that was defined to use PropertyBehavior. Instead of writing code such as this: mockObject.Stub(x => x.SomeProperty).Return(42); You can use the property directly to achieve the same result: mockObject.SomeProperty = 42;

Answer 1

以下对我有用:

HttpResponseBase response = MockRepository.GenerateMock<HttpResponseBase>();

// stub the getter
response.Stub(r => r.StatusCode).Return((int)HttpStatusCode.OK);

// Stub the setter
response.Stub(r => r.StatusCode = Arg<int>.Is.Anything).WhenCalled( o =>
  {
    Console.WriteLine("called");
  });

因为我实际上想做的是模拟您可以获得但不能设置状态代码的情况(因为 header 已经发送)，所以我不执行 WhenCalled() ，我这样做:

 response.Stub(r => r.StatusCode = Arg<int>.Is.Anything)
   .Throw(new HttpException("Server cannot set status after HTTP headers have been sent"));

您必须使用 MockRepository.GenerateMock 而不是 MockRepository.GenerateStub。我不知道为什么。