requestify (Rack::Test::Utils)

    # File lib/rack/test/utils.rb, line 7
          def requestify(value, prefix = nil)
            case value
            when Array
              value.map do |v|
                requestify(v, "#{prefix}[]")
              end.join("&")
            when Hash
              value.map do |k, v|
                requestify(v, prefix ? "#{prefix}[#{escape(k)}]" : escape(k))
              end.join("&")
            else
              "#{prefix}=#{escape(value)}"
            end
          end