[rules-users] Are rule-contents testable ?

Hi All, I've been playing with BRMS (4.x) for some time & found it very interesting & useful. Wondering if the BRMS system has (or if there's plan in 5.x) testing infrastructure for rules. Before I actually create a snapshot (and make the rules available to the clients), it would be nice to have a "playground" where I can simulate some of the scenarios & validate if the rule-contents are getting executed the way i want them to be. Given that the rule definitions are actually parsed by the system (drl file grammar), it should be possible to automatically generate test cases that can walk through different blocks in the rule definition. Also, generation of test data should not be tough. Thanks, -ram