public string processFragment(string fragment, string csv)
        {
            usernames = csvToCollection(csv);
            Document document = new TestRig()
                                .WithFixture(this)
                                .ProcessFragment(fragment)
                                .GetDocument();

            var result = String.Empty;

            var table = (Element)document.getRootElement().query("//table").get(0);
            var rows  = table.query(".//tr");

            for (int i = 1; i < rows.size(); i++)
            {
                if (!result.Equals(""))
                {
                    result += ", ";
                }
                result += categorize((Element)rows.get(i));
            }

            return(result);
        }