Open Source .NET Application Projects (not framework or tool projects) with lots of NUnit Tests

I would like to get a list some reference or sample application projects in .NET/C#- with good test coverage.

The thing is, I want to see this in action for a true application project with any business logic in it. Instead of frameworks with tests in them... like开发者_StackOverflow中文版 ASP.NET MVC ,Automapper etc. which are no doubt useful.

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http://www.ohloh.net/p/nunit/stacks — check for users who contributes to some project. Some examples:

CruiseControl.net

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