[Python-checkins] CVS: python/dist/src/Lib/test test_array.py,1.6,1.7

[Fred L. Drake]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory slayer.i.sourceforge.net:/tmp/cvs-serv31348/Lib/test

Modified Files:
	test_array.py 
Log Message:
Trent Mick <trentm@activestate.com>:
Testing: test_array.py was also extended to check that one can set the
full range of values for each of the integral signed and unsigned
array types.

This closes SourceForge patch #100506.


Index: test_array.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_array.py,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -r1.6 -r1.7
*** test_array.py	1998/07/16 15:31:43	1.6
--- test_array.py	2000/06/28 17:50:51	1.7
***************
*** 16,19 ****
--- 16,57 ----
  
  
+ def testoverflow(type, lowerLimit, upperLimit):
+ 	# should not overflow assigning lower limit
+ 	if verbose:
+ 		print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
+ 	try:
+ 		a = array.array(type, [lowerLimit])
+ 	except:
+ 		raise TestFailed, "array(%s) overflowed assigning %s" %\
+ 			(`type`, `lowerLimit`)
+ 	# should overflow assigning less than lower limit
+ 	if verbose:
+ 		print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
+ 	try:
+ 		a = array.array(type, [lowerLimit-1])
+ 		raise TestFailed, "array(%s) did not overflow assigning %s" %\
+ 			(`type`, `lowerLimit-1`)
+ 	except OverflowError:
+ 		pass
+ 	# should not overflow assigning upper limit
+ 	if verbose:
+ 		print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
+ 	try:
+ 		a = array.array(type, [upperLimit])
+ 	except:
+ 		raise TestFailed, "array(%s) overflowed assigning %s" %\
+ 			(`type`, `upperLimit`)
+ 	# should overflow assigning more than upper limit
+ 	if verbose:
+ 		print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
+ 	try:
+ 		a = array.array(type, [upperLimit+1])
+ 		raise TestFailed, "array(%s) did not overflow assigning %s" %\
+ 			(`type`, `upperLimit+1`)
+ 	except OverflowError:
+ 		pass
+ 
+ 
+ 
  def testtype(type, example):
  
***************
*** 82,86 ****
                  raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
  
! 
  main()
!         
--- 120,138 ----
                  raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
  
!         # test that overflow exceptions are raised as expected for assignment
!         # to array of specific integral types
!         from math import pow
!         if type in ('b', 'h', 'i', 'l'):
!             # check signed and unsigned versions
!             a = array.array(type)
!             signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
!             signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
!             unsignedLowerLimit = 0
!             unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
!             testoverflow(type, signedLowerLimit, signedUpperLimit)
!             testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
! 			
! 			
! 		
  main()
!