First, you need a copy of
unittest.py: this is included with Python
version 2.1, or available separately from
http://pyunit.sourceforge.net. Together with
unittest.py there is a module
unittestgui.py, which implements a simple
Tkinter interface to the testing framework.
Since the unittest gui isn't always
available — not every Python installation includes Tkinter
—I have rewritten the framework to use PyQt, and the PyQt
version is available with this book. This version is also more
stable when testing classes derived from
QObject— the Tkinter unittest GUI
has a nasty tendency to crash when running more than one test
that's based on a QObject. The Qt unittest gui is a drop-in
replacement, and the filename is
unittestgui.py.
pyunit.py needs to be
on your Python path; additionally, you might want to execute
unittestgui.py by itself. It is often
comfortable to create either an icon on your desktop for
unittestgui.py, or to write a small startup
script in your $HOME/bin directory.
Once you have the supporting odds and ends
in place, you can start writing tests for your
application.