What would be a nice testbed to debug JAVA APPLET based SCORM content package (eclipse).
debugging with a real LMS (like Moodle) usually requires uploading package in a zip file to LMS (slow..)
ADL themselves provide some compliance testing software (link here I think) which was always a good enough test for most needs (for me), and a number of free and commercial options also exist. I've heard good things about SCORM Test Track, but haven't used it myself.