fails:CGI::HtmlExtension#radio_button when passed no arguments returns a radio-'input'-element without a name
fails:CGI::HtmlExtension#radio_button when passed no arguments ignores a passed block
fails:CGI::HtmlExtension#radio_button when passed name returns a radio-'input'-element with the passed name
fails:CGI::HtmlExtension#radio_button when passed name ignores a passed block
fails:CGI::HtmlExtension#radio_button CGI::HtmlExtension#checkbox when passed name, value returns a radio-'input'-element with the passed name and value
fails:CGI::HtmlExtension#radio_button CGI::HtmlExtension#checkbox when passed name, value ignores a passed block
fails:CGI::HtmlExtension#radio_button when passed name, value, checked returns a checked radio-'input'-element with the passed name and value when checked is true
fails:CGI::HtmlExtension#radio_button when passed name, value, checked ignores a passed block
fails:CGI::HtmlExtension#radio_button when passed Hash returns a radio-'input'-element using the passed Hash for attributes
fails:CGI::HtmlExtension#radio_button when passed Hash ignores a passed block
