[Python-checkins] CVS: python/dist/src/Lib/test test_weakref.py,1.15,1.16

[Fred L. Drake]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv26179/Lib/test

Modified Files:
	test_weakref.py 
Log Message:
Regression test for SF bug #478534 -- exceptions could "leak" into a weakref
callback.


Index: test_weakref.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_weakref.py,v
retrieving revision 1.15
retrieving revision 1.16
diff -C2 -d -r1.15 -r1.16
*** test_weakref.py	2001/11/06 16:38:34	1.15
--- test_weakref.py	2001/12/10 23:46:02	1.16
***************
*** 228,231 ****
--- 228,256 ----
          self.assert_(1.0 + p == 3.0)  # this used to SEGV
  
+     def test_callbacks_protected(self):
+         """Callbacks protected from already-set exceptions?"""
+         # Regression test for SF bug #478534.
+         class BogusError(Exception):
+             pass
+         data = {}
+         def remove(k):
+             del data[k]
+         def encapsulate():
+             f = lambda : ()
+             data[weakref.ref(f, remove)] = None
+             raise BogusError
+         try:
+             encapsulate()
+         except BogusError:
+             pass
+         else:
+             self.fail("exception not properly restored")
+         try:
+             encapsulate()
+         except BogusError:
+             pass
+         else:
+             self.fail("exception not properly restored")
+ 
  
  class Object: