This is a topic I have been interested in for a while. I have seen it done by some of my colleagues, especially in AIA environments, and I have been waiting to get an opportunity to work on it and document it.
But I recently found a great article from Daniel Amadei here. I strongly encourage you to take a look at it if you are at all interested in test automation and/or continuous integration.
I am planning to build this kind of testing into my continuous integration project here.
Building a Custom BPM Worklist, Oracle InSync 2011 User Group presentation
Performance Tuning for Oracle Business Process Management Suite 10g, Oracle Whitepaper, July 2011
Performance Tuning for Oracle Business Process Management Suite 11g, Oracle Whitepaper, February 2013
Oracle BPM Suite 11g: Advanced BPMN Topics, Packt Publishing, September 2012
Fusion Middleware 12.1.2: Developing Applications with Continuous Integration
Fusion Middleware 12.1.3: Developing Applications with Continuous Integration
RedStack