Rhino Mocks：如何在方法調用中模擬方法調用？

Question

我有一個非常簡單的類有兩種方法;一個將被調用，另一個將調用。這個想法是調用OuterMockMethod方法，但模擬InnerMockMethod。現在我只能模仿OuterMockMethod方法。

public class MockClass : IMockInterface 
{   
    public virtual MockClass InnerMockMethod() 
    { 
     MockClass returnValue; 

     returnValue = new MockClass(); 
     returnValue.SomeMessage = "Not mocked"; 

     return returnValue; 
    } 

    public virtual MockClass OuterMockMethod() 
    { 
     MockClass mock; 

     mock = new MockClass(); 

     return mock.MockedMethod(); 
    } 
} 

現在這個工作，但它不是我想要嘲笑方法：

public void MockTest_Internal() 
{ 
    MockClass returnedClass; 
    MockClass mockProvider; 

    mockProvider = repository.StrictMock<MockClass>(); 
    mockProvider.Expect(item => item.OuterMockMethod()) 
     .Return(new MockClass { SomeMessage = "Mocked" }); 
    repository.Replay(mockProvider); 

    returnedClass = mockProvider.OuterMockMethod(); 

    Assert.IsTrue(returnedClass.SomeMessage == "Mocked"); 
} 

正如你所看到的，它會調用OuterMockMethod它喜歡，但我不希望出現這種情況。我想嘲笑InnerMockMethod，這樣當它被OuterMockMethod調用時，它將返回我想要的內容。

public void MockTest_Internal() 
{ 
    MockClass returnedClass; 
    MockClass mockProvider; 

    mockProvider = repository.StrictMock<MockClass>(); 
    mockProvider.Expect(item => item.InnerMockMethod()) 
     .Return(new MockClass { SomeMessage = "Mocked" }); 
    repository.Replay(mockProvider); 

    returnedClass = mockProvider.OuterMockMethod(); //Boom angry Rhino 

    Assert.IsTrue(returnedClass.SomeMessage == "Mocked"); 
} 

Answer 1

在這種情況下，你需要把模擬返回的對象上：

MockClass returnedMock = MockRepository.GenerateMock<MockClass>(); 
returnedMock.Expect(rm => rm.InnerMockMethod()) 
      .Return(new MockClass { SomeMessage = "Mocked" }); 
mockProvider.Expect(mp => mp.OuterMockMethod()).Return (returnedMock); 

returnedClass = mockProvider.OuterMockMethod(); 

... 

注意StrictMock已被棄用。現在首選的模式是AAA（Arrange，Act，Assert）。你可以找到更多信息here。