[Zope-dev] transience and gc.set_threshold(1)

[Michael Dunstan]

I'm seeing test failures in transience when running the tests for  
Zope-2_7-branch (python 2.3.3) with garbage collection threshold0 set  
to 1.

Seems to break in slightly different places from run to run. Here is  
one example:

% python test.py -vv --dir lib/python/Products/Transience/tests -g 1 ""  
"testPathological"
gc threshold: (1, 10, 10)
Running unit tests at level 1
Running unit tests from /Zope/lib/python/Products/Transience/tests
testPathologicalLeftBranching  
(Products.Transience.tests.testTransientObjectContainer.TestTransientObj 
ectContainer) ... ERROR
testPathologicalRightBranching  
(Products.Transience.tests.testTransientObjectContainer.TestTransientObj 
ectContainer) ... ERROR

======================================================================
ERROR: testPathologicalLeftBranching  
(Products.Transience.tests.testTransientObjectContainer.TestTransientObj 
ectContainer)
----------------------------------------------------------------------
Traceback (most recent call last):
   File  
"/Zope/lib/python/Products/Transience/tests/ 
testTransientObjectContainer.py", line 193, in  
testPathologicalLeftBranching
     map(self.t.__delitem__, revr)
   File "/Zope/lib/python/Products/Transience/Transience.py", line 470,  
in __delitem__
     del bucket[k]
KeyError: 946

======================================================================
ERROR: testPathologicalRightBranching  
(Products.Transience.tests.testTransientObjectContainer.TestTransientObj 
ectContainer)
----------------------------------------------------------------------
Traceback (most recent call last):
   File  
"/Zope/lib/python/Products/Transience/tests/ 
testTransientObjectContainer.py", line 183, in  
testPathologicalRightBranching
     map(self.t.__delitem__, r)
   File "/Zope/lib/python/Products/Transience/Transience.py", line 470,  
in __delitem__
     del bucket[k]
KeyError: 69

----------------------------------------------------------------------
Ran 2 tests in 4.659s

FAILED (errors=2)