[Python-checkins] python/dist/src/Lib/test test_mmap.py,1.23,1.24

[nnorwitz@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv29682/Lib/test

Modified Files:
	test_mmap.py 
Log Message:
SF bug # 585792, Invalid mmap crashes Python interpreter

Raise ValueError if user passes a size to mmap which is larger
than the file.


Index: test_mmap.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_mmap.py,v
retrieving revision 1.23
retrieving revision 1.24
diff -C2 -d -r1.23 -r1.24
*** test_mmap.py	23 Jul 2002 19:03:57 -0000	1.23
--- test_mmap.py	5 Sep 2002 21:48:06 -0000	1.24
***************
*** 190,193 ****
--- 190,208 ----
                 "Readonly memory map data file was modified")
  
+         print "  Opening mmap with size too big"
+         import sys
+         f = open(TESTFN, "r+b")
+         try:
+             m = mmap.mmap(f.fileno(), mapsize+1)
+         except ValueError:
+             # we do not expect a ValueError on Windows
+             if sys.platform.startswith('win'):
+                 verify(0, "Opening mmap with size+1 should work on Windows.")
+             pass
+         else:
+             # we expect a ValueError on Unix, but not on Windows
+             if not sys.platform.startswith('win'):
+                 verify(0, "Opening mmap with size+1 should raise ValueError.")
+ 
          print "  Opening mmap with access=ACCESS_WRITE"
          f = open(TESTFN, "r+b")