test.rb

module Rack
  module Test
    module Session
      attr_reader :last_response
      attr_reader :last_request

      alias_method :response, :last_response
      alias_method :request,  :last_request

      def initialize(app)
        @app = app
      end

      # get "/", :foo => "bar"
      # post "/", "foobar"
      # get "/", :foo => "bar", :headers => { "User-Agent" => "Rack::Test" }
      # get "/", :headers => { "HTTP_ACCEPT" => "text/plain" }
      # get "/", :env     => { "HTTP_ACCEPT" => "text/plain" } # same
      # post "/", "foo bar", :env => { "rack.sessions" => { "foo" => "bar" }
      #
      # :headers is just a sugar for :env which can be used to modify the
      # Rack env
      def get(path, data=nil, headers=nil)
        request!(path, data, headers)
      end

      def head
      def post
      def put
      def delete

      # The four above methods need to call one underlying impl...
      # dispatch_request, process_request, .. ???

      private
        def request!(path, data=nil, headers=nil)
          @request = make_request(path, data, headers)
          @response = Rack::Response.new(@app.call(env))
        end

        def build_request(path, data, headers)
          # data is either the input or an hash of params
        end
    end
  end
end