public async Task <IActionResult> GetAll()
        {
            var item = await _repository.GetAllResults();

            if (item == null)
            {
                return(new NotFoundResult());
            }
            return(new OkObjectResult(item));
        }
        public async Task ShouldReadExistingItems()
        {
            var items = await _serviceProvider.GetAllResults();

            Assert.NotNull(items);
        }