I always wanted to get my hands dirty with a little expression tree magic but never had the time to do so. When test driving code of a component you are currently working on you might feel in the middle of the “Do a little change, let it fail, make it green” process that your component needs an event which is publicly visible and can be subscribed by clients. But how would you test that the event is fired on your component’s interface? I’ll show you how this is normally achieved and how an event tester could simplify the process.

.NET AutoAttachEventTester, EventTester, Expression Trees, TDD