public void ShouldDeleteHashtag()
        {
            //arrange
            var user    = GenerateUser();
            var hashtag = Guid.NewGuid().ToString();

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

            dataLayer.AddUser(user);

            var photo = GeneratePhoto(user.Id);

            dataLayer.AddPhoto(photo);

            var comment = GenerateComment(user.Id, photo.Id);

            dataLayer.AddComment(comment);
            comment = dataLayer.AddHashtag(comment, hashtag);

            dataLayer.DeleteHashtag(comment, hashtag);

            var haveHashtag = dataLayer.HaveHashtag(comment, hashtag);

            //assert
            Assert.AreEqual(haveHashtag, false);
        }
        public void ShouldAddGetDeleteHashtag()
        {
            //arrange
            var hashtag = new Hashtag
            {
                PostId      = Guid.Parse("82243a65-d1e6-440c-a906-5dffb9cd653c") /*Guid.NewGuid()*/,
                HashtagText = "#hashtag"/*Guid.NewGuid().ToString()*/
            };
            //act
            var dataLayer  = new DataLayer.Sql.DataLayer(_connectionString);
            var addHashtag = dataLayer.AddHashtag(hashtag);
            var dataLayer1 = new DataLayer.Sql.DataLayer(_connectionString);
            var getHashtag = dataLayer1.GetHashtag(addHashtag.HashtagId);
            var dataLayer2 = new DataLayer.Sql.DataLayer(_connectionString);
            int isDeleted  = dataLayer2.DeleteHashtag(getHashtag.HashtagId);

            //asserts
            Assert.AreEqual(addHashtag.HashtagId, getHashtag.HashtagId);
            Assert.AreEqual(addHashtag.PostId, getHashtag.PostId);
            Assert.AreEqual(addHashtag.HashtagText, getHashtag.HashtagText);
            Assert.IsNotNull(isDeleted);
        }