Common-Description:
 DejaGnu is a framework for testing other programs.  Its purpose is to provide a
 single front end for all tests.  Think of it as a custom library of Tcl
 procedures crafted to support writing a test harness.  A test harness is the
 testing infrastructure that is created to support a specific program or tool.
 Each program can have multiple testsuites, all supported by a single test
 harness.
 .
 DejaGnu is written in Expect, which in turn uses Tcl -- Tool command language.