unit test for postgress class


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@75778 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
unit tests


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@75779 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0