Test and DB Functions

I am using the DBFunction plugin writen by Mark Van H.,
http://agilewebdevelopment.com/plugins/activerecord_database_functions

It works wonderfully but I’m having an issue with testing. My
development postgres database contains the necessary functions but they
are missing from my test database. I’ve got a sql file which adds the
functions to the db but something is removing them.

Here’s what I’m experiencing.

1 I run my sql file and add the functions.
2 Run an individual unit-test :Pass
3 Run all test :Fail - No function matches the given name. And when I
check the database the functions are indeed missing.

Any ideas?