RubyUnit is Ruby implementation of Kent Beck's Testing Framework,
which is known as the part of "eXtreme Programming" (XP).
For details of XP, see http://www.xprogramming.com/.
Author: Masaki Suketa <CQN02273@nifty.ne.jp>
WWW: http://homepage1.nifty.com/markey/ruby/rubyunit/rubyunit_e.html