public void GetHtmlStringTest()
        {
            var _htmlStringGoogleProvider = new HtmlStringGoogleProvider();
            var keywork = "online title search";
            var seUrl   = "https://www.google.com.au/search";
            var result  = _htmlStringGoogleProvider.GetHtmlString(keywork, seUrl, 2);

            // Assert
            Assert.IsNotNull(result);
        }