>># 
>># Copyright 1990, 1991 by the Massachusetts Institute of Technology and
>># UniSoft Group Limited.
>># 
>># Permission to use, copy, modify, distribute, and sell this software and
>># its documentation for any purpose is hereby granted without fee,
>># provided that the above copyright notice appear in all copies and that
>># both that copyright notice and this permission notice appear in
>># supporting documentation, and that the names of MIT and UniSoft not be
>># used in advertising or publicity pertaining to distribution of the
>># software without specific, written prior permission.  MIT and UniSoft
>># make no representations about the suitability of this software for any
>># purpose.  It is provided "as is" without express or implied warranty.
>># 
>># $XConsortium: synchrnz.m,v 1.6 92/06/11 17:26:07 rws Exp $
>># 
>>#
>>TITLE XSynchronize CH08
>>ASSERTION B XSynchronize-1
A call to XSynchronize with onoff set to True turns on
synchronous behavior.
>>STRATEGY
Report UNTESTED
>>ASSERTION B XSynchronize-2
A call to XSynchronize with onoff set to False turns off
synchronous behavior.
>>STRATEGY
Report UNTESTED
>>ASSERTION A XSynchronize-3
A call to XSynchronize with onoff set to True sets the
after function to a non-NULL value.
>>STRATEGY
Call XSynchronize with onoff set to True.
Call XSetAfterFunction to get value of old after function.
Verify that XSetAfterFunction returned non-NULL.
>>ASSERTION A XSynchronize-4
A call to XSynchronize with onoff set to False sets the
after function to NULL.
>>STRATEGY
Call XSynchronize with onoff set to False.
Call XSetAfterFunction to get value of old after function.
Verify that XSetAfterFunction returned NULL.
>>ASSERTION A XSynchronize-5
A call to XSynchronize returns the previous after function.
>>STRATEGY
Call XSetAfterFunction to set after function to afterfunction.
Call XSynchronize with onoff set to False.
Verify that XSynchronize returned afterfunction.
Call XSetAfterFunction to set after function to afterfunction.
Call XSynchronize with onoff set to True.
Verify that XSynchronize returned afterfunction.
