'Create a portal with no checkers and wrap it around a simple test
realm.  Set up a PB server on a TCP port which serves perspectives
using that portal.'

def setUp(self):

    self.realm = TestRealm()
    self.portal = portal.Portal(self.realm)
    self.serverFactory = ConnectionNotifyServerFactory(self.portal)
    self.clientFactory = pb.PBClientFactory()
