[Zodb-checkins] CVS: Zope2/lib/python/ZODB - IteratorStorage.py:1.1

[barry@digicool.com]

Update of /cvs-repository/Zope2/lib/python/ZODB/tests
In directory korak.digicool.com:/tmp/cvs-serv31318

Added Files:
	IteratorStorage.py 
Log Message:
A bunch of unittests for the iterator() method and interface of the
storage API.



--- Added File IteratorStorage.py in package Zope2/lib/python/ZODB ---
# Run tests against the iterator() interface for storages.  Any storage that
# supports the iterator() method should be able to pass all these tests.

from ZODB.tests.MinPO import MinPO
from ZODB.tests.StorageTestBase import zodb_unpickle



class IteratorStorage:
    def checkSimpleIteration(self):
        # Store a bunch of revisions of a single object
        oid = self._storage.new_oid()
        revid1 = self._dostore(oid, data=MinPO(11))
        revid2 = self._dostore(oid, revid=revid1, data=MinPO(12))
        revid3 = self._dostore(oid, revid=revid2, data=MinPO(13))
        # Now iterate over all the transactions
        val = 11
        txniter = self._storage.iterator()
        for reciter, revid in zip(txniter, (revid1, revid2, revid3)):
            assert reciter.tid == revid
            for rec in reciter:
                assert rec.oid == oid
                assert rec.serial == revid
                assert rec.version == ''
                assert zodb_unpickle(rec.data) == MinPO(val)
                val += 1