Not Considering Generic Parameter Types for Expectations

[JasonBock]

If there is a method to mock defined like this:

public virtual void Set<T>() { ... }

And multiple expectations are set like this:

expectations.Methods.Set<string>();
expectations.Methods.Set<Guid>();

A cast exception will occur. This is because the gen'd code only looks at the 0th element in the methodHandlers array. Specifically, since there's no parameters, Rocks "thinks" there could only be one expectation set for it. It doesn't consider the generic parameter values as well. This should also be done if parameters are in play as well.

[JasonBock]

To be clear, this is what breaks Rocks:

public virtual ReferencedContainer<T> SetThings<T>() where T : class => new();

I think this would also happen if there was a parameter that used a generic parameter, but wasn't based directly on the generic parameter. I think I make a wrong assumption that I can just do a cast in the gen'd code and if multiple expectations are set, you get an InvalidCastException.

So, 2 fixes:

• I need to handle the parameter and return types correctly by seeing if they are a generic parameter or use a generic parameter
• If there is "input" - i.e. parameters, generic or method - I always need to do a foreach on the @methodHandlers array.