DejaGnu is a testing framework, originally developed for the GNU project. This application note was written in response to the author's frustration at setting up a DejaGnu test framework for the first time, using the existing documentation [3].

DejaGnu can be used standalone, but it is most useful when integrated with the GNU autotools (autoconf automake and libtool). This application note describes both modes of use.

This application note is deliberately incomplete. It only covers the most commonly used features and options. The intention is that, having got an initial test suite up and running, the user will be confident in reading the full DejaGnu documentation (see Section 1.2).