How to write automated integrated tests when using JTA?

I want to write integration tests for the application I'm working on. It us开发者_运维百科es JTA (multiple resources) and runs inside an application server. What is the best way for writing an automated test for such a scenario? Using an standalone transaction manager like atomikos or somehow leveraging the app server api/tools for transaction handling?

Sounds like a good plan, might be a bit complicated satisfying the environment required by all those resources.