public void GetBookingById_Success_Result()
{
var getBookingByIdRequestModel = new GetBookingByIdRequestModel();
Mediator.Setup(x => x.Send(It.IsAny <GetBookingByIdRequestModel>(), new CancellationToken())).
ReturnsAsync(new GetBookingByIdResponseModel());
var bookingController = new BookingController(Mediator.Object);
var result = bookingController.BookingDetails(getBookingByIdRequestModel);
Assert.IsType <OkObjectResult>(result);
}