RPG testing

I'm interested to know how others organise their test libraries for a collection of exported procedures.

We have :

Test library name = module name.

For each exported procedure :

Files containing parameters;
An rpg program compiled on the module being tested.


To test, a CLP launches each rpg program in turn.


If I add a procedure, I need to :

Recompile all the rpg programs to be sure my new procedure does not modify with existing test results.
Juggle with files that may be modified by my procedure and existing procedures. eg, I might need to initialise a file before my test that has already been used by a previous test.


Thanks.