[ZODB-Dev] tcp_begin in tests

[Antonio Beamud Montero]

El mié, 06-07-2005 a las 19:57 +0200, Antonio Beamud Montero escribió:
> Hi all:
> In my app, I'm using ZODB to store data, the problem is that I have
> implemented several unittest, for every unit test I create the ZODB
> database and when the test finished I destroy the database (including
> files). When I run 2 test, the first is executed ok, but the second
test
> give me the next Exception:
>         
> Traceback (most recent call last):
>   File "./test_collector.py", line 240, in runTest
>     self.collect = Collector(conf)
>   File "/usr/lib/python2.3/site-packages/mylib/collector.py", line 78,
> in __init__
>     get_transaction().commit()
>   File "/opt/zope/lib/python/ZODB/Transaction.py", line 232, in commit
>     self._commit_begin(jars, subjars, subtransaction)
>   File "/opt/zope/lib/python/ZODB/Transaction.py", line 340, in
> _commit_begin
>      jar.tpc_begin(self)
>   File "/opt/zope/lib/python/ZODB/Connection.py", line 692, in
tpc_begin
>     self._storage.tpc_begin(transaction)
> AttributeError: 'NoneType' object has no attribute 'tpc_begin'
>         
> To shutdown the class containing the ZODB connection:
>         
>   def shutdown(self):
>         self.db.close()
>         self.storage.close()
>         return
>         
> But, if I execute only the second test, all works ok...
> I've try to debug the problem, but the ZODB code is very deep and
> complex...
>         

Sorry, I not give you all the info:

To open the database:
testdata = '/tmp/zodb.fs'
class Collector:
    def __init__(self, config=None):
        try:
            self.storage = FileStorage.FileStorage(testdata, create=1)
            self.db = DB(self.storage)
            self.db.setPoolSize(20)
            zodbcon = self.db.open()
            root = zodbcon.root()
        except Exception,e:
            sys.exit(0)
        if not root.has_key('pendings'):
            root['pendings'] = Status('pendings')
        get_transaction().commit()

    def shutdown(self):
         self.db.close()
         self.storage.close()
         return        

The problem arises when the commit() is executed...

I have tested ZODB but the problem doesn't raises...

Greetings.