public void Delete_Success_ReturnsARedirectToActionResut()
        {
            // Arrange
            var paymentId   = 1;
            var testPayment = new PaymentViewModel()
            {
                Id = paymentId
            };
            var paymentsRepo     = new Mock <IPaymentService>();
            var guestsRepo       = new Mock <IGuestService>();
            var reservationsRepo = new Mock <IReservationService>();

            paymentsRepo.Setup(g => g.DeletePayment(paymentId));
            var controller = new PaymentController(paymentsRepo.Object, guestsRepo.Object, reservationsRepo.Object);

            // Act
            var result = controller.DeleteConfirmed(paymentId);

            // Assert
            var redirectToActionResult = result as RedirectToActionResult;

            Assert.AreEqual("Index", redirectToActionResult.ActionName);
        }