public void SaveEncryptDecryptImageTest()
        {
            Image  img       = ActivityProcessor.GetInstance().MakeScreenshot();
            string sessionId = (200 + TimingHelper.GetCurrentTimestamp()).ToString();

            CacheProcessor.SaveImage(img, "300", sessionId, false);
            CacheProcessor.CreateEncryptedImages(sessionId);
            CacheProcessor.DeleteDecryptedImages(sessionId);
            CacheProcessor.CreateDecryptedImages(sessionId);
            CacheProcessor.DeleteEncryptedImages(sessionId);
            string[] imgPaths = CacheProcessor.GetDecryptedImagePaths(sessionId);
            Assert.IsTrue(imgPaths.Length == 1);
            Assert.IsTrue(imgPaths[0].Contains("300.jpg"));
        }