<p>I'm wondering how the few Delphi users here are doing unit testing, if any?  Is there anything that integrates with the IDE that you've found works well?  If not, what tools are you using and do you have or know of example mini-projects that demonstrate how it all works?</p>
<h3>Update:</h3>
<p>I forgot to mention that I'm using BDS 2006 Pro, though I occasionally drop into Delphi 7, and of course others may be using other versions.</p>

DUnit
is a xUnit type of unit testing framework to be used with win32 Delphi. Since Delphi 2005 DUnit is integrated to a certan point into the IDE. Other DUnit integration tools for the Delphi IDE can be found
here
. DUnit comes with
documentation with examples
.