A student may double test only with the permission of an instructor.  It is very rare, and something that should not be
sought after.  Students wishing to double test must have a complete understanding of both their curriculum and the
curriculum they will be testing over; they must also meet the class requirement for both their current rank and the rank
they will be testing over.
    On truly momentous occasions, students may be double tested without their prior knowledge, such happens rarely
and usually from white to yellow belt.  This is called an honorary double test.
    Regardless of how the student comes to double test, he or she cannot double test twice in a row, or be promoted to
black belt in this manner.
Double Testing