public async Task TestMethod1()
        {
            // delete table
            StorageAccount
            .CreateCloudTableClient()
            .GetTableReference(TableName)
            .DeleteIfExists();

            // load, parse
            var client = new DmmGameRankingClient();
            var html   = File.ReadAllText(LocalHtmlPath);
            await client.LoadFromHtmlAsync(html);

            var elements = client.Parse();

            elements.Any().IsTrue();

            var tableClient = new DmmGameRankingTableClient(StorageAccount, TableName);
            var nowStr      = DateTime.Now.ToString("yyyyMMdd_HHmmss");
            var entities    = elements.Select(x => new DmmGameRankingEntity
            {
                GameTitle        = x.Name,
                ObservedDateTime = nowStr,
                Rank             = x.Rank,
                Genre            = x.Genre,
                Comment          = x.Comment,
            });
            await tableClient.AddOrUpdateAsync(entities);
        }
        public async Task ParseTest()
        {
            var client = new DmmGameRankingClient();
            var html   = File.ReadAllText(LocalHtmlPath);
            await client.LoadFromHtmlAsync(html);

            var elements = client.Parse();

            elements.Any().IsTrue();
        }