If you go to junit.org, you'll see a quote from me: “never in the field of software development have so many owed so much to so few lines of code”. JUnit has been criticized as a minor thing, something any reasonable programmer could produce in a weekend. This is true, but utterly misses the point. The reason JUnit is important ... is that the presence of this tiny tool has been essential to a fundamental shift for many programmers. — Martin Fowler, http://martinfowler.com/

For this unit, work through the following preparatory activities.