def setUp(self): self.ip_file = '/tmp/ip.txt' self.service = Mock(spec=BaseDNSService) self.service.find_domains = Mock(side_effect=NotImplementedError) self.updater = IPUpdater(self.service, self.ip_file) self.updater.state._getNewIp = Mock() self.updater.state._getNewIp.return_value = "1.1.1.1"