From a60624d6c08af9ed7e514ed8b4f87c8915c8bb55 Mon Sep 17 00:00:00 2001
From: Stefan Sprenger <stefan.sprenger@dkd.de>
Date: Tue, 7 Jun 2011 09:16:15 +0200
Subject: Clean up engine's generator test and use bundle exec for invoking
 generators

---
 railties/test/engine/generators_test.rb | 43 +++++++++++++++++++++++----------
 1 file changed, 30 insertions(+), 13 deletions(-)

diff --git a/railties/test/engine/generators_test.rb b/railties/test/engine/generators_test.rb
index f335c16a8c..bda1f0a23b 100644
--- a/railties/test/engine/generators_test.rb
+++ b/railties/test/engine/generators_test.rb
@@ -1,5 +1,3 @@
-# require 'isolation/abstract_unit'
-
 require 'fileutils'
 
 require 'test/unit'
@@ -16,20 +14,24 @@ require "#{RAILS_FRAMEWORK_ROOT}/activesupport/lib/active_support/core_ext/kerne
 require "#{RAILS_FRAMEWORK_ROOT}/railties/lib/rails/generators/test_case"
 
 module EngineTests
-  class ControllerGenerator < Rails::Generators::TestCase
+  class GeneratorTest < Rails::Generators::TestCase
     include ActiveSupport::Testing::Isolation
-    
+
     TMP_PATH = File.expand_path(File.join(File.dirname(__FILE__), *%w[.. .. tmp]))
     self.destination_root = File.join(TMP_PATH, "foo_bar")
 
     def tmp_path(*args)
       File.join(TMP_PATH, *args)
     end
-    
+
     def engine_path
       tmp_path('foo_bar')
     end
 
+    def bundle_exec(cmd)
+      `bundle exec rails #{cmd}`
+    end
+
     def rails(cmd)
       environment = File.expand_path('../../../../load_paths', __FILE__)
       if File.exist?("#{environment}.rb")
@@ -37,29 +39,44 @@ module EngineTests
       end
       `#{Gem.ruby} #{require_environment} #{RAILS_FRAMEWORK_ROOT}/bin/rails #{cmd}`
     end
-    
+
     def build_engine
       FileUtils.mkdir_p(engine_path)
       FileUtils.rm_r(engine_path)
-      
+
       rails("plugin new #{engine_path} --full --mountable")
+
+      Dir.chdir(engine_path) do
+        File.open("Gemfile", "w") do |f|
+          f.write <<-GEMFILE.gsub(/^ {12}/, '')
+            source "http://rubygems.org"
+
+            gem 'rails', :path => '#{RAILS_FRAMEWORK_ROOT}'
+            gem 'sqlite3'
+
+            if RUBY_VERSION < '1.9'
+              gem "ruby-debug", ">= 0.10.3"
+            end
+          GEMFILE
+        end
+      end
     end
 
     def setup
       build_engine
     end
-    
+
     def test_controllers_are_correctly_namespaced
       Dir.chdir(engine_path) do
-        rails("g controller topics")
-        assert_file "app/controllers/foo_bar/topics_controller.rb"
+        bundle_exec("g controller topics")
+        assert_file "app/controllers/foo_bar/topics_controller.rb", /FooBar::TopicsController/
       end
     end
-    
+
     def test_models_are_correctly_namespaced
       Dir.chdir(engine_path) do
-        rails("g model topic")
-        assert_file "app/models/foo_bar/topic.rb"
+        bundle_exec("g model topic")
+        assert_file "app/models/foo_bar/topic.rb", /FooBar::Topic/
       end
     end
   end
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