Feature/engine support (Issue #11)

features/support/rails_fixtures.rb

@@ -31,6 +31,20 @@ module RailsFixtures
   end
 
   private
+  def create_and_mount_engine(version = '3.2')
+    run 'bundle exec rails plugin new vendor/plugins/rails_engine --mountable'
+    stop_processes!
+    write_file('vendor/plugins/rails_engine/config/routes.rb', "
+                RailsEngine::Engine.routes.draw do
+                  root to: redirect('/index.html')
+                end
+               ")
+    append_to_file("Gemfile",
+      "gem 'rails_engine', :path => 'vendor/plugins/rails_engine'\n")
+    stop_processes!
+    run "bundle install"
+    stop_processes!
+  end
 
   def create_rails_app(version = '3.2')
     @aruba_timeout_seconds = 100
@@ -41,15 +55,16 @@ def create_rails_app(version = '3.2')
       ")
     run "bundle install"
     run "rm -fR rails_app"
-    stop_processes!
     run 'bundle exec rails new rails_app'
     stop_processes!
     cd "rails_app"
     write_file('config/routes.rb', "
                 RailsApp::Application.routes.draw do
                   root to: redirect('/index.html')
+                  mount RailsEngine::Engine, :at => '/'
                 end
                ")
+    create_and_mount_engine(version)
   end
 
   def add_spinach_rails
@@ -64,12 +79,18 @@ def add_test_features
          Scenario: Test scenario
            Given I am running spinach
            Then It should be all OK
+         Scenario: Mounted engine test scenario
+           Given the test app has mounted an engine
+           Then It should be all OK
       ")
     write_file('features/steps/test_feature.rb',
       "class TestFeature < Spinach::FeatureSteps
          Given 'I am running spinach' do
            visit root_path
          end
+         Given 'the test app has mounted an engine' do
+           visit rails_engine.root_path
+         end
          Then 'It should be all OK' do
            page.has_content?('Rails').must_equal true
          end

lib/spinach-rails/generators/rails.rb

@@ -9,6 +9,28 @@ def create_environment_file
 
 require 'minitest/spec'
 
+module Spinach
+  class FeatureSteps
+    known_engines = Rails::Engine.descendants
+    engines_with_routes = known_engines.select{ |engine|
+      engine.respond_to?(:routes) && engine.routes.named_routes.routes.present?
+    }
+    engines_with_routes.each do |engine|
+      engine_name = engine.to_s.underscore.split("/")
+      case engine_name.pop
+      when "application"
+        send :define_method, :main_app do
+          engine.routes.url_helpers
+        end
+      when "engine"
+        send :define_method, engine_name[0].to_sym do
+          engine.routes.url_helpers
+        end
+      end
+    end
+  end
+end
+
 # require 'database_cleaner'
 # DatabaseCleaner.strategy = :truncation
 #