rules engine route matcher

# put this file in your spec/support folder
module RulesEngine
  module RouteMatcher
    class Matcher
      attr_reader :route_params, :with_params
      def initialize(params = {})
        @route_params = params
        @with_params = params.map{|key, value| ":#{key} => #{value}"}.join(' ')
      end  
    end
    
    def with_route_params(params, &block)
      @route_matcher = RulesEngine::RouteMatcher::Matcher.new(params)
      yield
      @route_matcher = nil
    end
    
    def match_route html_method, controller, routes
      matcher = @route_matcher || RulesEngine::RouteMatcher::Matcher.new()

      routes.each do |method, path| 
        it "routes #{html_method} #{path} to #{controller}##{method} #{matcher.with_params}" do
          { html_method => "#{path}" }.should route_to(
            {:controller => controller.to_s,
            :action => method.to_s }.merge(matcher.route_params)
          )
        end
      end

    end    
  end
end

USAGE

require 'spec_helper'

describe "routing to profiles" do
  extend RulesEngine::RouteMatcher
  
  describe "/re_plans" do
    # index methods
    match_route(:get,  :re_plans, :index => '/re_plans')
    match_route(:get,  :re_plans, :new => '/re_plans/new')
    match_route(:post, :re_plans, :create => '/re_plans')

    with_route_params(:id => "101") do
      match_route(:get, :re_plans, :show => '/re_plans/101', 
                                  :edit => '/re_plans/101/edit')
      match_route(:put, :re_plans, :update => '/re_plans/101')

    ...

  describe "/re_plans/101/workflows" do
    with_route_params(:re_plan_id => "101") do
      match_route(:get,  :re_plan_workflows, :new => '/re_plans/101/workflows/new')
      match_route(:post, :re_plan_workflows, :create => '/re_plans/101/workflows')
    end
    with_route_params(:re_plan_id => "101", :id => "202") do  
      match_route(:get, :re_plan_workflows, :show => '/re_plans/101/workflows/202',