Issue #1664: Unit Test support for mapserver

[Umberto Nicoletti]

I have opened issue #1664 to track comments, feedback and of course
criticisms on the much needed (IMHO) addition of unit tests to
mapserver.

Unit tests are a completely automated way of testing code, which
should improve the development process, the code quality and the
developers' confidence in making changes to the code. I now use them
in almost every project I am involved and I find them invaluable. Go
and check out some unit tests advocacy here:

http://www.junit.org

For unit testing mapserver I have decided to use Cunit (version 2.0.x
from http://cunit.sf.net). Unit tests are located under the cunit
directory and must be compiled in pretty much the same way a mapscript
extension would. Build and running instructions are detailed in
bugzilla.
Please note that you need to install CUnit on your computer before you
can use it. I am currently using 2.0 on gentoo x86.

The unit tests I have implemented so far only test the connectin
pooling functions and to activate them you need to configure using the
--with-threads argument.

Last but not least I am working on a continuos integration project (a
la Cruise Control).

Let me know what you think and let's get this into cvs HEAD!

Umberto