public async void Check12DeleteEfDirectOk()
        {
            int postId;

            using (var db = new SampleWebAppDb())
                postId = db.Posts.AsNoTracking().First().PostId;

            using (var db = new SampleWebAppDb())
            {
                //SETUP
                var timer = new Stopwatch();
                timer.Start();

                //ATTEMPT
                await db.DeletePostEfDirectAsync(postId);

                timer.Stop();

                //VERIFY
                Console.WriteLine("Ef operation took {0} ms", timer.ElapsedMilliseconds);
            }
        }