Problems with GESTEP test cases

I'm looking at openformula-20070322-wheeler, section 6.14.34.

The test cases for GESTEP are all using GETEST(). They should be changed to 
GESTEP()

It would also be nice to add test cases for the following:
 X not a number (similar to the Step not a number case)
 two numbers that are the same (e.g. =GESTEP(3,3) )
 two numbers that are not quite the same (e.g. = GESTEP( 1.3, 1.2) )


Brad