def testSequenceAddAndRetrieveAndRemove(self):
st = NDBStore(identifier = 'banana')
for index in range(len(_TRIPLES)):
st.add(_TRIPLES[index], None)
self.assertEquals(1, len(st))
self._assertSameSet(_TRIPLES[index:index+1], st.triples((None, None, None), None))
st.remove(_TRIPLES[index], None)
self.assertEquals(0, len(st))
self._assertSameSet([], st.triples((None, None, None), None))
