Any ASP.NET (WebForm) apps which have good unit tests (CodePlex or anywhere)?

Question

I am looking for any ASP.NET (WebForms & C#) app which has some good unit tests in its solution. Good meaning testing different kinds of edge cases and does a good code coverage. Any app on CodePlex, GitHub or anywhere is fine.

This is for educational purposes so I prefer smaller apps than large ones. Any recommendations?

Clarification:

While the app is WebForms, the unit tests I am interested is more on business logic, not the UI. Yes any .NET app can do but if it is WebForms with some UI testing, the better.

Answer 1

ScrewTurn wiki is open-source, version 3.x is coded in C# and ASP.NET 3.5, and the source comes bundled with tests for the components.