[Python-checkins] python/dist/src/Lib/test test_descr.py,1.133,1.134

[gvanrossum@sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv8995/Lib/test

Modified Files:
	test_descr.py 
Log Message:
Jim Fulton reported a segfault in dir().  A heavily proxied object
returned a proxy for __class__ whose __bases__ was also a proxy.  The
merge_class_dict() helper for dir() assumed incorrectly that __bases__
would always be a tuple and used the in-line tuple API on the proxy.

I will backport this to 2.2 as well.


Index: test_descr.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_descr.py,v
retrieving revision 1.133
retrieving revision 1.134
diff -C2 -d -r1.133 -r1.134
*** test_descr.py	18 Apr 2002 18:06:20 -0000	1.133
--- test_descr.py	13 May 2002 18:29:46 -0000	1.134
***************
*** 366,369 ****
--- 366,389 ----
      vereq(dir(None), dir(Ellipsis))
  
+     # Nasty test case for proxied objects
+     class Wrapper(object):
+         def __init__(self, obj):
+             self.__obj = obj
+         def __repr__(self):
+             return "Wrapper(%s)" % repr(self.__obj)
+         def __getitem__(self, key):
+             return Wrapper(self.__obj[key])
+         def __len__(self):
+             return len(self.__obj)
+         def __getattr__(self, name):
+             return Wrapper(getattr(self.__obj, name))
+ 
+     class C(object):
+         def __getclass(self):
+             return Wrapper(type(self))
+         __class__ = property(__getclass)
+ 
+     dir(C()) # This used to segfault
+ 
  binops = {
      'add': '+',