#46 update unit tests

[Derrick Oswald]

The suite of JUnit tests should be revamped.
Many tests are testing the same thing, and other tests
are commented out or ineffectual.
See also old RFE #722917 Incorporate regression tests,
such as fit testing,
http://sourceforge.net/tracker/index.php?func=detail&aid=722917&group_id=24399&atid=381402
for ideas on using the fit framework for HTML test cases.