Add --full option to 'plugin new' generator, which generates rails engine

Gemfile

@@ -25,6 +25,9 @@ gem "memcache-client", ">= 1.8.5"
 # AM
 gem "text-format", "~> 1.0.0"
 
+# for 'plugin new --full' generator
+gem "capybara"
+
 platforms :mri_18 do
   gem "system_timer"
   gem "ruby-debug", ">= 0.10.3"

railties/lib/rails/generators/app_base.rb

@@ -26,6 +26,11 @@ def self.add_shared_options_for(name)
         class_option :skip_git,           :type => :boolean, :aliases => "-G", :default => false,
                                           :desc => "Skip Git ignores and keeps"
 
+        skip_active_record_desc = "Skip Active Record files"
+        skip_active_record_desc << " for dummy application" if name == "plugin"
+        class_option :skip_active_record, :type => :boolean, :aliases => "-O", :default => false,
+                                          :desc => skip_active_record_desc
+
         class_option :dev,                :type => :boolean, :default => false,
                                           :desc => "Setup the #{name} with Gemfile pointing to your Rails checkout"
 

railties/lib/rails/generators/rails/app/app_generator.rb

@@ -165,9 +165,6 @@ class AppGenerator < AppBase
       class_option :javascript,         :type => :string, :aliases => "-j", :default => "prototype",
                                         :desc => "Preconfigure for selected javascript library (options: #{JAVASCRIPTS.join('/')})"
 
-      class_option :skip_active_record, :type => :boolean, :aliases => "-O", :default => false,
-                                        :desc => "Skip Active Record files"
-
       class_option :skip_test_unit,     :type => :boolean, :aliases => "-T", :default => false,
                                         :desc => "Skip Test::Unit files"
 

railties/lib/rails/generators/rails/plugin_new/plugin_new_generator.rb

+require 'active_support/core_ext/hash/slice'
 require 'rails/generators/app_base'
 require "rails/generators/rails/app/app_generator"
 
@@ -28,16 +29,26 @@ def gitignore
     end
 
     def lib
-      directory "lib"
+      template "lib/%name%.rb"
+      if full?
+        template "lib/%name%/engine.rb"
+      end
     end
 
     def test
-      directory "test"
+      template "test/test_helper.rb"
+      template "test/%name%_test.rb"
+      if full?
+        template "test/integration/navigation_test.rb"
+        template "test/support/integration_case.rb"
+      end
     end
 
     def generate_test_dummy
+      opts = (options || {}).slice("skip_active_record")
+
       invoke Rails::Generators::AppGenerator,
-        [ File.expand_path(dummy_path, destination_root) ], {}
+        [ File.expand_path(dummy_path, destination_root) ], opts
     end
 
     def test_dummy_config
@@ -96,6 +107,9 @@ class PluginNewGenerator < AppBase
 
       alias_method :plugin_path, :app_path
 
+      class_option :full, :type => :boolean, :default => false,
+                          :desc => "Generate rails engine with integration tests"
+
       def initialize(*args)
         raise Error, "Options should be given after the plugin name. For details run: rails plugin --help" if args[0].blank?
 
@@ -159,6 +173,10 @@ def bundle_if_dev_or_edge
 
     protected
 
+      def full?
+        options[:full]
+      end
+
       def self.banner
         "rails plugin new #{self.arguments.map(&:usage).join(' ')} [options]"
       end
@@ -183,6 +201,7 @@ def valid_const?
 
       def application_definition
         @application_definition ||= begin
+
           dummy_application_path = File.expand_path("#{dummy_path}/config/application.rb", destination_root)
           unless options[:pretend] || !File.exists?(dummy_application_path)
             contents = File.read(dummy_application_path)

railties/lib/rails/generators/rails/plugin_new/templates/Gemfile

@@ -2,6 +2,11 @@ source "http://rubygems.org"
 
 <%= rails_gemfile_entry -%>
 
+<% if full? -%>
+  gem "capybara", ">= 0.3.9"
+  gem "sqlite3-ruby", :require => "sqlite3"
+<% end -%>
+
 if RUBY_VERSION < '1.9'
   gem "ruby-debug", ">= 0.10.3"
 end

railties/lib/rails/generators/rails/plugin_new/templates/lib/%name%.rb

+<% if full? %>
+require "<%= name %>/engine"
+
+<% end -%>
+module <%= camelized %>
+end

railties/lib/rails/generators/rails/plugin_new/templates/lib/%name%.rb.tt → railties/lib/rails/generators/rails/plugin_new/templates/lib/%name%/engine.rb

 module <%= camelized %>
+  class Engine < Rails::Engine
+  end
 end

railties/lib/rails/generators/rails/plugin_new/templates/rails/application.rb

 require File.expand_path('../boot', __FILE__)
 
+<% unless options[:skip_active_record] -%>
 require 'rails/all'
+<% else -%>
+# require "active_record/railtie"
+require "action_controller/railtie"
+require "action_mailer/railtie"
+require "active_resource/railtie"
+require "rails/test_unit/railtie"
+<% end -%>
 
 Bundler.require
 require "<%= name %>"

railties/lib/rails/generators/rails/plugin_new/templates/test/integration/navigation_test.rb

+require 'test_helper'
+
+class NagivationTest < ActiveSupport::IntegrationCase
+  test "truth" do
+    assert_kind_of Dummy::Application, Rails.application
+  end
+end

railties/lib/rails/generators/rails/plugin_new/templates/test/support/integration_case.rb

+# Define a bare test case to use with Capybara
+class ActiveSupport::IntegrationCase < ActiveSupport::TestCase
+  include Capybara
+  include Rails.application.routes.url_helpers
+end
\ No newline at end of file

railties/lib/rails/generators/rails/plugin_new/templates/test/test_helper.rb

@@ -6,5 +6,21 @@
 
 Rails.backtrace_cleaner.remove_silencers!
 
+<% if full? -%>
+ActionMailer::Base.delivery_method = :test
+ActionMailer::Base.perform_deliveries = true
+ActionMailer::Base.default_url_options[:host] = "test.com"
+
+# Configure capybara for integration testing
+require "capybara/rails"
+Capybara.default_driver   = :rack_test
+Capybara.default_selector = :css
+
+# Run any available migration from application
+ActiveRecord::Migrator.migrate File.expand_path("../dummy/db/migrate/", __FILE__)
+# and from engine
+ActiveRecord::Migrator.migrate File.expand_path("../../db/migrate/", __FILE__)
+<% end -%>
+
 # Load support files
 Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each { |f| require f }

railties/test/generators/plugin_new_generator_test.rb

@@ -41,15 +41,28 @@ def test_invalid_plugin_name_is_fixed
   def test_generating_test_files
     run_generator
     assert_file "test/test_helper.rb"
-
     assert_file "test/bukkits_test.rb", /assert_kind_of Module, Bukkits/
   end
 
+  def test_generating_test_files_in_full_mode
+    run_generator [destination_root, "--full"]
+    assert_directory "test/support/"
+    assert_directory "test/integration/"
+
+    assert_file "test/integration/navigation_test.rb", /assert_kind_of Dummy::Application, Rails.application/
+    assert_file "test/support/integration_case.rb", /class ActiveSupport::IntegrationCase/
+  end
+
   def test_ensure_that_plugin_options_are_not_passed_to_app_generator
     FileUtils.cd(Rails.root)
     assert_no_match /It works from file!.*It works_from_file/, run_generator([destination_root, "-m", "lib/template.rb"])
   end
 
+  def test_ensure_that_skip_active_record_option_is_passed_to_app_generator
+    run_generator [destination_root, "--skip_active_record"]
+    assert_no_file "test/dummy/config/database.yml"
+  end
+
   def test_template_from_dir_pwd
     FileUtils.cd(Rails.root)
     assert_match /It works from file!/, run_generator([destination_root, "-m", "lib/template.rb"])
@@ -62,6 +75,19 @@ def test_ensure_that_tests_works
     assert_match /1 tests, 1 assertions, 0 failures, 0 errors/, `bundle exec rake test`
   end
 
+  def test_ensure_that_tests_works_in_full_mode
+    run_generator [destination_root, "--full"]
+    FileUtils.cd destination_root
+    `bundle install`
+    assert_match /2 tests, 2 assertions, 0 failures, 0 errors/, `bundle exec rake test`
+  end
+
+  def test_creating_engine_in_full_mode
+    run_generator [destination_root, "--full"]
+    assert_file "lib/bukkits/engine.rb", /module Bukkits\n  class Engine < Rails::Engine\n  end\nend/
+    assert_file "lib/bukkits.rb", /require "bukkits\/engine"/
+  end
+
 protected
 
   def action(*args, &block)