Excellent advice - thanks all who answered

Testing itself is on the same server - in most cases I bypass any RPC communication and do the RPC calls directly

Window of opportunity is < 1 sec and I like the ideas of using threads to test this.

For other saying why apply a test for this - from my experience every time I have a bug report I like to add a new test before its fixed, see it fail.. fix it and see it pass... leads to a greater question is when to test and when not to test but thanks all ++