def check_object_writer(self):
class FakeConnection(ConnectionBase):
def new_oid(self):
return ROOT_OID
def note_access(self, obj):
pass
connection = FakeConnection()
self.s=s=ObjectWriter(connection)
x = Persistent()
assert x._p_connection == None
x._p_oid = ROOT_OID
x._p_connection = connection
assert s._persistent_id(x) == (ROOT_OID, Persistent)
x._p_connection = FakeConnection()
# connection of x no longer matches connection of s.
raises(ValueError, s._persistent_id, x)
x.a = Persistent()
assert s.get_state(x), (
'\x80\x02cdurus.persistent\nPersistent\nq\x01.\x80\x02}q\x02U'
'\x01aU\x08\x00\x00\x00\x00\x00\x00\x00\x00q\x03h\x01\x86Qs.',
'\x00\x00\x00\x00\x00\x00\x00\x00')
assert list(s.gen_new_objects(x)) == [x, x.a]
# gen_new_objects() can only be called once.
raises(RuntimeError, s.gen_new_objects, 3)
s.close()
