/// <summary>
        /// Search production site
        /// </summary>
        /// <param name="searchSite">Production Site to search</param>
        /// <returns>Searched results</returns>
        public static List <SearchedResult> Search(SearchSite searchSite)
        {
            IReadOnlyList <IWebElement> elements = WebDriver.FindElements(By.TagName("input"));

            foreach (IWebElement element in elements)
            {
                if (element.Enabled && element.Displayed)
                {
                    string keyWord = GetDescription(searchSite);
                    element.Clear();
                    element.SendKeys(keyWord + "\n");
                    break;
                }
            }

            List <SearchedResult>       searchedResults = new List <SearchedResult>();
            IReadOnlyList <IWebElement> searchedElementResults;
            int waitTime = Int32.Parse(ConfigurationManager.AppSettings["WaitTime"]);
            var wait     = new WebDriverWait(WebDriver, TimeSpan.FromSeconds(waitTime));

            switch (searchEngine)
            {
            case "google":
                wait.Until(ExpectedConditions.ElementExists(By.CssSelector("h3>a")));
                searchedElementResults = WebDriver.FindElements(By.CssSelector("h3>a"));
                break;

            case "bing":
                wait.Until(ExpectedConditions.ElementExists(By.CssSelector("li>h2>a")));
                searchedElementResults = WebDriver.FindElements(By.CssSelector("li>h2>a"));
                break;

            default:
                searchedElementResults = null;
                break;
            }
            if (searchedElementResults != null)
            {
                for (int i = 0; i < searchedElementResults.Count; i++)
                {
                    SearchedResult result = new SearchedResult();
                    result.Name       = searchedElementResults[i].Text;
                    result.DetailLink = searchedElementResults[i].GetAttribute("href");
                    searchedResults.Add(result);
                }
            }

            return(searchedResults);
        }
        /// <summary>
        /// Verify whether the ranking of the site search result is acceptable
        /// </summary>
        /// <param name="lowestRanking">The expected lowest ranking for the site search result</param>
        /// <param name="ranking">The actual ranking</param>
        /// <returns>True if ranking is less than lowestRanking, else no.</returns>
        private static bool CanFindSiteinSearchResults(SearchSite item, string link, int lowestRanking, out int ranking)
        {
            ranking = 0;
            bool isFounded = false;
            List <SearchedResult> searchedResults = Search(item);

            foreach (SearchedResult result in searchedResults)
            {
                if (ranking >= lowestRanking)
                {
                    break;
                }
                if (result.DetailLink.Contains(link))
                {
                    isFounded = true;
                    break;
                }
                ranking++;
            }
            return(isFounded);
        }