# File lib/webrat/selenium/application_servers/sinatra.rb, line 8
        def start
          fork do
            File.open('rack.pid', 'w') { |fp| fp.write Process.pid }
            exec 'rackup', File.expand_path(Dir.pwd + '/config.ru'), '-p', Webrat.configuration.application_port.to_s
          end
        end