Rhino Mocks - Proper usage of Arg<T>.Ref

Question

I'm having problems figuring out the proper arguments of the Arg option in RhinoMocks.

I am trying to mock the MSIRecordGetString method which has a ref Int32 parameter. Currently I have:

_Api.RecordGetString(Arg<IntPtr>.Is.Anything,
                     Arg<Int32>.Is.Anything, 
                     Arg<StringBuilder>.Is.Anything, 
                     ref Arg<Int32>.Ref( ???, 0).Dummy);

Can anyone let me know what ??? should/could be replaced with. I know it should be something of type AbstractConstraint but I'm not sure what is valid. Having difficulty finding any examples of proper usage.

Cheers.

Answer 1

I'm actually used to Moq, but my understanding of that first argument is a constraint, but seeing as you don't particularly care for the value (I'm assuming), could you do the following:

ref Arg<Int32>(Is.Anything(), 0).Dummy

?