Test and DB Functions

I am using the DBFunction plugin writen by Mark Van H.,

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?