[TestClass]
    public class IntegrationTests
    {
        [TestMethod]
        public void Should_ResponseStatus200_When_HashIsCorrect()
        {
            var hashProvider = new Crc32Provider();
            PhotoService photoService = new PhotoService(hashProvider);
            string url =  photoService.GetImageUrl(200, 200, "p172/i/851300ee84c2b80ed40f51ed26d866fc/ba3ee1b5-1b44-458e-b2b5-602a4dca78eb.png");

            var request = (HttpWebRequest)WebRequest.Create(url);
            request.Proxy = null;

            using (var response = (HttpWebResponse)request.GetResponse())
            {
                Assert.AreEqual(response.StatusCode, HttpStatusCode.OK);
            }

        }
    }