2007-08-05 MB: TclTAP is a small test library producing output in TAP format
[http://search.cpan.org/~petdance/TAP-1.00/TAP.pm]. It doesn't want to
be in competition with tcltest. For more information:
http://kotka.de/wiki.cgi?TclTAP

Example test script:

 package require test::tap
 namespace import ::test::tap::*

 # We want to run three tests.
 plan 4

 ok {expr {1 == 1}} -description "1 is equal to 1"
 # Similar. Note: For now one must use [concat] to pass a variable or constant.
 is {concat 1} 1

 ok {expr {0 == 1}}
 # But is has more diagnostics:
 is {concat 0} 1

This test script produces the following output:

 1..4
 ok 1 1 is equal to 1
 ok 2
 not ok 3
 not ok 4
 # expected:
 #   {concat 1}
 # to be:
 #   1
 # got:
 #   0