Enterprise Library 2.0 Test Guide

This is a pretty thorough guide. This would have come in pretty handy in the past when I wrote some Enterprise Library Extensions. It is worth checking out.

From the MSDN Site:
Enterprise Library Test Guide provides guidance to testers and programmers who have extended or modified an Enterprise Library component and who want to apply functional testing techniques to their work.

This guide provides detailed description for performing functional tests on Enterprise Library components. Functional tests include design reviews, code reviews, and automated testing. The guide also describes how to test the components to determine whether they follow globalization and security best practices in addition to meeting performance and scalability requirements.

Check it out here.