About 9 months ago I posted a comparison of different mocking frameworks. A lot has changed since then - armloads of bugfixes, gratifying influx of new features, and even a new mocking framework (!) - so time is ripe for a new comparison.

But before I move on, here's a very brief list of changes.
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Finishing off this lengthy soliloquy about different mocking frameworks, here's a small summary.

Comparison of different mocking frameworks. NMock2 vs Moq vs Rhino Mocks vs Typemock Isolator - it's all here.

[Update: there's a new comparison available]
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So here is the method on Brain class we're going to test:

public void TouchIron(Iron iron)

{

    try { 

        _hand.TouchIron(iron);

    }

    catch(BurnException) {

        _mouth.Yell();

    }

}

We need to test the brain in isolation ensuring it yells if a hot iron is passed. In the test, the hand should emulate the hot iron case, and mouth should yell exactly once before the method finishes ^[1]. 
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