This Jakarta Ant buildfile is used to do the low-level work of unit testing our system. This is separate from build.xml because to use this build file, you must have installed JUnit and the JUnit Ant tasks (i.e., $ANT_HOME/lib/junit.jar and $ANT_HOME/lib/optional.jar). Thus, this buildfile contains only targets that must interact with JUnit. Read the comments of this buildfile to learn more, or see 'http://thdltools.sourceforge.net/BuildSystems.html'.