public WebpageReaderTests()
        {
            ContentExtractionStrategyFactory contentExtractionStrategyFactory = new ContentExtractionStrategyFactory();

            INodeContentExtractionStrategy extractContentAttribute =
                contentExtractionStrategyFactory.ExtractAttributeByName("content");
            INodeContentExtractionStrategy extractInnerText =
                contentExtractionStrategyFactory.ExtractInnerText();

            _webpageTitleSearch = PageSearch.NewBuilder()
                                  .AddSearchCriteria("/html/head/meta[@property='og:title']", extractContentAttribute)
                                  .AddSearchCriteria("/html/head/meta[@name='twitter:title']", extractContentAttribute)
                                  .AddSearchCriteria("/html/head/title", extractInnerText)
                                  .SetDefault("Untitled")
                                  .Build();
        }