public async Task ReturnsStockImageModel()
        {
            // Arrange
            ArrangeHttpHandler(new UnsplashImageResponse());

            // Act
            var stockImage = await unsplashService.GetRandomImage();

            // Assert
            Assert.NotNull(stockImage);
            Assert.IsAssignableFrom <StockImageModel>(stockImage);
        }
        public async Task GetsImage()
        {
            // Act
            var image = await unsplashService.GetRandomImage();

            // Assert
            Assert.NotNull(image);
            Assert.IsAssignableFrom <StockImageModel>(image);
            Assert.False(string.IsNullOrWhiteSpace(image.Id));
            Assert.False(string.IsNullOrWhiteSpace(image.ImageEmbedUrl));
        }