```ruby
require 'spec_helper'

require 'action_dispatch'
require 'strong_routes/rails/route_mapper'

describe ::StrongRoutes::Rails::RouteMapper do
  let(:paths) { [ 'users', 'posts', 'user_posts', 'bar', 'trading-post' ] }
  let(:route_set) {
    route_set = ActionDispatch::Routing::RouteSet.new
    route_set.draw do
      resources :users, :only => :index  do
        resources :posts
      end

      resources :posts, :only => :show
      resources :user_posts, :only => :show

      get 'bar/sandwich', :to => 'users#index'
      get 'trading-post', :to => 'posts#show'
    end
    route_set
  }

  describe ".map" do
    it "maps routes to path strings" do
      ::StrongRoutes::Rails::RouteMapper.map(route_set).must_equal paths
    end
  end

  describe "#map" do
    subject { ::StrongRoutes::Rails::RouteMapper.new(route_set) }

    it "maps routes to path strings" do
      subject.map.must_equal paths
    end
  end
end
```

Use shallow routes in specs
user
```ruby
require 'spec_helper'

require 'action_dispatch'
require 'strong_routes/rails/route_mapper'

describe ::StrongRoutes::Rails::RouteMapper do
  let(:paths) { [ 'users', 'posts', 'comments', 'user_posts', 'bar', 'trading-post' ] }
  let(:route_set) {
    route_set = ActionDispatch::Routing::RouteSet.new
    route_set.draw do
      resources :users, :only => :index  do
        resources :posts, :shallow => true do
          resources :comments, :shallow => true
        end
      end

      resources :user_posts, :only => :show

      get 'bar/sandwich', :to => 'users#index'
      get 'trading-post', :to => 'posts#show'
    end
    route_set
  }

  describe ".map" do
    it "maps routes to path strings" do
      ::StrongRoutes::Rails::RouteMapper.map(route_set).sort.must_equal paths.sort
    end
  end

  describe "#map" do
    subject { ::StrongRoutes::Rails::RouteMapper.new(route_set) }

    it "maps routes to path strings" do
      subject.map.sort.must_equal paths.sort
    end
  end
end
```
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