public async Task TestAddBlogPostsAndComments()
        {
            foreach (var post in posts)
            {
                var p = await blog.AddPost(post);

                Assert.NotNull(p.id);

                for (int i = 0; i < 5; i++)
                {
                    await blog.AddComment(post, new BlogComment
                    {
                        commentText = $"comment {i} for blog post '{post.title}",
                        isApproved  = true,
                        userId      = $"user{i}"
                    });
                }
            }
        }