class Spec::Rails::Matchers::AssertSelect

def matches?(response_or_text, &block)
  if ActionController::TestResponse === response_or_text and
           response_or_text.headers.key?('Content-Type') and
           !response_or_text.headers['Content-Type'].blank? and
           response_or_text.headers['Content-Type'].to_sym == :xml
    @args.unshift(HTML::Document.new(response_or_text.body, false, true).root)           
  elsif String === response_or_text
    @args.unshift(HTML::Document.new(response_or_text).root)
  end
  @block = block if block
  begin
    @spec_scope.send(@assertion, *@args, &@block)
  rescue ::Test::Unit::AssertionFailedError => @error
  end
  
  @error.nil?
end