This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
JUnit is the base for almost all of the unit testing tools mentioned here (which are called "extensions" to JUnit). It's not any better than any of the extensions--they're simply built for different purposes.