fails:CGI::HtmlExtension#a when passed a String returns an 'a'-element, using the passed String as the 'href'-attribute
fails:CGI::HtmlExtension#a when passed a String includes the passed block's return value when passed a block
fails:CGI::HtmlExtension#a when passed a Hash returns an 'a'-element, using the passed Hash for attributes
fails:CGI::HtmlExtension#a when passed a Hash includes the passed block's return value when passed a block
