public void TestReservationDates() { var sut = new GuestController(); GuestController.Current = new Reservation(); Reservation r = new Reservation { CheckInDate = "2019-09-17", CheckOutDate = "2019-09-18" }; var view = sut.ReservationDates(r); var actual = GuestController.Current.CheckInDate; //When var expected = "2019-09-17"; //Then Assert.NotNull(view); Assert.IsType <RedirectToActionResult>(view); Assert.True(expected == actual); }