Question

[InheritedExport(typeof(MyAbstractClass))
public abstract class MyAbstractClass
{
    [Import] protected IFoo Foo { get; private set; }
}

public sealed class MyClass : MyAbstractClass
{
    public void DoSomething()
    {
        if (Foo == null) throw new Exception();

        var = Foo.GetBar();
        //etc.
    }
}

Basically, I use MEF to export classes out and get “common” imports. When I want to test these classes I can create mock interfaces of IFoo, but how do I actually get it in there with the private setter? MEF somehow is able to handle it, and I’m not sure how else I can test my DoSomething method.

Answer 1

I believe you can accomplish this with the MS Moles framework:

http://research.microsoft.com/en-us/projects/moles/