public void AddingToWishlist_Negative()
        {
            WishList wishReceived = new WishList();

            wishReceived.WishListId = 1;
            wishReceived.RenterId   = 2;
            wishReceived.RoomId     = 4;


            WishListDuplicate wishListDuplicate = new WishListDuplicate();

            wishListDuplicate.WishListId = 1;
            wishListDuplicate.RenterId   = 2;
            wishListDuplicate.RoomId     = 4;

            List <WishListDuplicate> returnedWishlist = new List <WishListDuplicate>();

            returnedWishlist.Add(wishListDuplicate);
            //Arrange
            var _mockDataService = new Mock <BookingService>();

            _mockDataService.Setup(p => p.AddingToWishList(wishReceived)).Throws <System.Exception>();
            var _bookingManager = new BookingManager(_mockDataService.Object);

            try
            {
                var responseReturned = _bookingManager.AddingToWishList(wishReceived);
                Assert.IsTrue(false);
            }
            catch
            {
                Assert.IsTrue(true);
            }
        }
        //   public IActionResult PostWishList(WishList wishListReceived)
        public IActionResult PostWishList(WishListToReceive wishListReceived)
        {
            //BookingManager bookingManager = new BookingManager();

            WishList wishListToBeAdded = new WishList();

            wishListToBeAdded.RenterId = wishListReceived.RenterId;
            wishListToBeAdded.RoomId   = wishListReceived.RoomId;

            Acknowledgement <WishListDuplicate> returnData = new Acknowledgement <WishListDuplicate>();

            //to avoid nulls that r present due to foreign key in model class "wishlist" we are using generic for duplicate wishlist.

            if (!ModelState.IsValid)
            {
                returnData = search.WhenErrorOccurs("", type: "modelState");  //this will call a method in bookingManager
                return(Ok(returnData));
            }

            try
            {
                returnData = search.AddingToWishList(wishListToBeAdded);
            }
            catch (AlreadyThereInWishList alreadyThere)
            {
                returnData = search.WhenErrorOccurs(alreadyThere.Message, type: "post");  //this will call a overloaded method in bookingManager
                return(Ok(returnData));
            }

            catch (SqlException)
            {
                returnData = search.WhenErrorOccurs("", type: "post");  //this will call a overloaded method in bookingManager
                return(Ok(returnData));
            }
            catch (Exception)
            {
                returnData = search.WhenErrorOccurs("", type: "post");
                return(Ok(returnData));
            }
            return(Ok(returnData));
        }