Exception raised:
    Traceback (most recent call last):
      File "/home/rage/dev_emencia/python/python-2.4.3/lib/python2.4/doctest.py", line 1243, in __run
        compileflags, 1) in test.globs
      File "<doctest label.txt[0]>", line 1, in ?
        from emencia.ecsdbtables.tests import fixture
      File "/home/rage/dev_emencia/instances/azsport/lib/python/emencia/ecsdbtables/tests/fixture.py", line 53, in ?
        createDatabase('sqlite:///:memory:')
      File "/home/rage/dev_emencia/instances/azsport/lib/python/emencia/ecsdb/utils.py", line 43, in createDatabase
        tables = getTables()
      File "/home/rage/dev_emencia/instances/azsport/lib/python/emencia/ecsdb/ecsdb.py", line 67, in getTables
        return _connector.getTables()
      File "/home/rage/dev_emencia/instances/azsport/lib/python/emencia/ecsdb/dbconnector.py", line 49, in getTables
        tables = self._metadata.table_iterator(reverse=False)
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 865, in table_iterator
      File "build/bdist.linux-i686/egg/sqlalchemy/sql_util.py", line 27, in sort
      File "build/bdist.linux-i686/egg/sqlalchemy/sql_util.py", line 48, in _do_sort
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 268, in accept_schema_visitor
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 496, in accept_schema_visitor
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 590, in accept_schema_visitor
      File "build/bdist.linux-i686/egg/sqlalchemy/sql_util.py", line 42, in visit_foreign_key
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 586, in <lambda>
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 570, in _init_column
      File "build/bdist.linux-i686/egg/sqlalchemy/schema.py", line 132, in __call__
    ArgumentError: Table 'None.product' not defined