No, no, no, no!!! Don't go on to the next test. Go back and review the test you just past. Now that the pressure is off, really evaluate the techniques just past. Did you do them right? Did you mess up on one during the test? How can you improve them? Etc....
That's a really good point Mike. I have my whole 6th kyu test on video, and it's really helpful to review it and remind myself of what I need to work on. Every time I watch it I see some other little (or not so little) thing.
I'm working toward my 5th kyu test.