Can I test a perl script?

I have a perl script that obtains username and password from a pg database. I'm new at freeradius, so I only can do a radtest with a localhost user. Can I test my perl script with an user from the pg database? how y do the radtest? -- Fabricio A. Flores G. Egresado en Ingeniería en Sistemas Blog Personal <http://fabricioflores.wordpress.com/>