Where: http://sourceforge.net/projects/tclunit/ Description: Implementation of the xUnit testing framework, in Tcl. Requires [incr Tcl]. TclUnit works on Windows and Unix. Currently at version 0.9 . Updated: 08/2002 Contact: See web site
From Tcl News Group...
Tclunit is a little GUI for driving tcltest suites. If you've been keeping up with the agile or extreme programming crowds, you are probably aware that there are a number of unit test frameworks modeled after the Java "junit" package. While these little frameworks aren't as sophisticated as Tcltest (IMNSHO), many of them have a little GUI to run the tests, with a big green "OK" indicator to give the programmer that warm fuzzy feeling.
Tclunit was created specifically as a demonstration for the Tcl/Tk 2005 conference. Several conference attendees asked if it would be made available, so it has been uploaded to the tcllib project's 'tclapps' module. You can fetch 'tclapps' from cvs, or just download tclunit source or starkit (which includes tile) from http://tcllib.sourceforge.net/
RLH 2011-08-19 - The little gui should be shown here.