public void ShouldGetLikes()
        {
            //arrange
            var user        = GenerateUser();
            var userAnother = GenerateUser();

            //act
            var dataLayer = new DataLayer.Sql.DataLayer(ConnectionSql);

            dataLayer.AddUser(user);
            dataLayer.AddUser(userAnother);

            var photo = GeneratePhoto(user.Id);

            dataLayer.AddPhoto(photo);

            dataLayer.AddLike(photo, user);
            dataLayer.AddLike(photo, userAnother);

            photo.UsersThatLike = dataLayer.GetLikes(photo);

            var resAllLikes = true;

            foreach (var usersLikes in photo.UsersThatLike)
            {
                if (usersLikes.Id != user.Id && usersLikes.Id != userAnother.Id)
                {
                    resAllLikes = false;
                }
            }

            //assert
            Assert.AreEqual(resAllLikes, true);
        }