public void OnEventPrintsAirspaces() { var ooga = new AirplaneInfo(); ooga.Tag = "SAS123"; ooga.X = 10001; ooga.Y = 10002; ooga.Altitude = 10003; ooga.TimeStamp = new DateTime(2019, 01, 01, 01, 01, 01, 111); var testList = new List <IAirplaneInfo>(); testList.Add(ooga); _fDetector.GetConditions().Returns(new List <SeparationCondition>()); _fAirspace.GetAirplanes().Returns(testList); _uut.OnEvent(new List <string>()); _fConsoleLogger.Received().Logs(LOGTYPE.AIRSPACE, Arg.Is <List <string> >(x => x.Count == 1)); }