public void ShouldRetrieveAPicture()
        {
            var id = Guid.NewGuid();

            var mockStorage = new Mock<IStorageContext>();
            mockStorage.Setup(s => s.Query<Picture>(StorageAccountConfiguration.PicturesTable)).Returns(() =>
                    {
                        var result = new List<Picture>();
                        result.Add(new Picture() { Id = id });
                        result.Add(new Picture() { Id = Guid.NewGuid() });
                        return result.AsQueryable();
                    });

            var repository = new PictureRepository(mockStorage.Object);
            var picture = repository.Get(id);

            Assert.AreEqual(picture.Id, id);
        }