import unittest class Mock_Alert_Config() : def __init__(self, id) : self.id = id class Test_Process_Prometheus(unittest.TestCase): def test(self) : import process_prometheus from serviceapp import service p = process_prometheus.Process_Prometheus(Mock_Alert_Config("a"), None, None, None) self.assertEqual(p.get_target(), service.check_prometheus_alert) if __name__ == "__main__" : unittest.main()