Stubbing a read only property with Rhino Mocks

Question

I have a class with a private set property that I want to stub out with rhino mocks. When I try to do this, though, it gives me a compile time error saying I can't set a read only property. I'm new to using Rhino Mocks so I must be missing something here...

public Interface IFoo
{
    int Quantity { get; }
}

[TestMethod]
public void SomeTest()
{
    IFoo foo = MockRepository.GenerateStub<IFoo>();
    foo.Quantity = 5;

    //Asserts and such
}

score 34 · Accepted Answer · answered Jan 19 '10 at 00:29

34

Use:

foo.Stub (f => f.Quantity).Return (5);

See http://ayende.com/Wiki/Rhino+Mocks+3.5.ashx#UsingExpecttosetupproperties

You can also use:

foo.Expect(f => f.Quantity).Return (5);

answered Jan 19 '10 at 00:29

Pete

11,313
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2

Using the Stub method worked perfect after I realized I was trying to stub the concrete class rather than the interface. Thanks! – JChristian Jan 19 '10 at 00:41
I found that `Expect` doesn't work if the property is called multiple time as the second time onwards the original property implementation was called - in this case `Stub` was actually what I wanted. – Justin Jun 27 '12 at 13:05
Tried with Rhino 3.6.1 and doesn't work: "You are trying to set an expectation on a property that was defined to use PropertyBehavior"... I hate legacy code – zameb Jul 28 '21 at 13:08

score 4 · Answer 2 · answered Jan 19 '10 at 00:29

4

You can just do:

foo.Stub(f => f.Quantity).Return(5);
//asserts

answered Jan 19 '10 at 00:29

Lee

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Stubbing a read only property with Rhino Mocks

2 Answers2

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