glass box testing

from The Free On-line Dictionary of Computing (8 July 2008)

white box testing
clear box testing
glass box testing
open box testing

   <programming> (Or "clear", "glass", "open") Software testing
   approaches that examine the program structure and derive test
   data from the program logic.

   Structural testing is sometimes referred to as clear-box
   testing since white boxes are considered opaque and do not
   really permit visibility into the code.

   (1996-05-10)