class LocalStorage:
"""A single test that only make sense for local storages.
A local storage is one that doens't use ZEO. The __len__()
implementation for ZEO is inexact.
"""
def checkLen(self):
eq = self.assertEqual
# The length of the database ought to grow by one each time
eq(len(self._storage), 0)
self._dostore()
eq(len(self._storage), 1)
self._dostore()
eq(len(self._storage), 2)
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