Fix #6: application routes in engine

app/helpers/tasuku/url_helper.rb

@@ -0,0 +1,11 @@
+module Tasuku
+  module UrlHelper
+    def url_for(options)
+      begin
+        super options
+      rescue ActionController::UrlGenerationError
+        main_app.url_for options
+      end
+    end
+  end
+end

spec/dummy/app/controllers/application_controller.rb

@@ -4,4 +4,5 @@ class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
 
   include ApplicationHelper
+  include Tasuku::UrlHelper
 end

spec/dummy/config/routes.rb

@@ -1,4 +1,6 @@
 Rails.application.routes.draw do
 
   mount Tasks::Engine => "/tasks"
+
+  get "/", to: "application#test", as: :test
 end

spec/dummy/db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20140611084458) do
+ActiveRecord::Schema.define(version: 20140613115558) do
 
   create_table "articles", force: true do |t|
     t.datetime "created_at"

spec/spec_helper.rb

@@ -24,6 +24,7 @@
 
   config.include FactoryGirl::Syntax::Methods
   config.include ActionDispatch::TestProcess
+  config.include Rails.application.routes.url_helpers
 
   config.fixture_path = "#{File.dirname(__FILE__)}/fixtures"
 end

spec/support/shared_examples_for_redirectable.rb

@@ -33,5 +33,14 @@
         expect(response).to redirect_to after_completion_path
       end
     end
+
+    context 'with application route' do
+      before { expect(subject).to receive(:after_completion_path_for).and_return test_path }
+
+      it 'redirects to the configured url' do
+        send(verb, action, params)
+        expect(response).to redirect_to test_path
+      end
+    end
   end
 end