public void Set_Production_Tracking_URL() { _trackService.Expect(x => x.Url).SetPropertyWithArgument("https://ws.fedex.com/web-services"); _tracker = new FedexTracker(_trackService, "key", "password", "accountNumber", "meterNumber", true); var td = _tracker.GetTrackingData("9274890100130166388000"); _trackService.VerifyAllExpectations(); }