Added HelperGenerator.

railties/lib/generators/named_base.rb

@@ -13,15 +13,15 @@ module Rails
 
       def initialize(*args)
         super
-        assign_names!
+        assign_names!(self.name)
         parse_attributes! if respond_to?(:attributes)
       end
 
       protected
 
-        def assign_names!
-          base_name, @class_path, @file_path, @class_nesting, @class_nesting_depth = extract_modules(name)
-          @class_name_without_nesting, @singular_name, @plural_name = inflect_names(base_name)
+        def assign_names!(given_name)
+          self.name, @class_path, @file_path, @class_nesting, @class_nesting_depth = extract_modules(given_name)
+          @class_name_without_nesting, @singular_name, @plural_name = inflect_names(self.name)
 
           @table_name = if !defined?(ActiveRecord::Base) || ActiveRecord::Base.pluralize_table_names
             plural_name

railties/lib/generators/rails/helper/USAGE

@@ -0,0 +1,24 @@
+Description:
+    Stubs out a new helper. Pass the helper name, either
+    CamelCased or under_scored.
+
+    To create a helper within a module, specify the helper name as a
+    path like 'parent_module/helper_name'.
+
+    This generates a helper class in app/helpers and invokes your test
+    framework.
+
+Example:
+    `./script/generate helper CreditCard`
+
+    Credit card helper.
+        Helper:     app/helpers/credit_card_helper.rb
+        Test:       test/unit/helpers/credit_card_helper_test.rb
+
+Modules Example:
+    `./script/generate helper 'admin/credit_card'`
+
+    Credit card admin helper.
+        Helper:     app/helpers/admin/credit_card_helper.rb
+        Test:       test/unit/helpers/admin/credit_card_helper_test.rb
+

railties/lib/generators/rails/helper/helper_generator.rb

@@ -0,0 +1,15 @@
+module Rails
+  module Generators
+    class HelperGenerator < NamedBase
+      def check_class_collisions
+        class_collisions "#{class_name}Helper"
+      end
+
+      def create_helper_files
+        template 'helper.rb', File.join('app/helpers', class_path, "#{file_name}_helper.rb")
+      end
+
+      invoke_for :test_framework
+    end
+  end
+end

railties/lib/generators/rails/helper/templates/helper.rb

@@ -0,0 +1,2 @@
+module <%= class_name %>Helper
+end

railties/lib/generators/test_unit/helper/helper_generator.rb

@@ -0,0 +1,13 @@
+module TestUnit
+  module Generators
+    class HelperGenerator < Base
+      def check_class_collisions
+        class_collisions "#{class_name}Helper"
+      end
+
+      def create_helper_files
+        template 'helper_test.rb', File.join('test/unit/helpers', class_path, "#{file_name}_helper_test.rb")
+      end
+    end
+  end
+end

railties/lib/generators/test_unit/helper/templates/helper_test.rb

@@ -0,0 +1,4 @@
+require 'test_helper'
+
+class <%= class_name %>HelperTest < ActionView::TestCase
+end

railties/test/generators/helper_generator_test.rb

@@ -0,0 +1,36 @@
+require 'abstract_unit'
+require 'generators/generators_test_helper'
+require 'generators/rails/helper/helper_generator'
+require 'generators/test_unit/helper/helper_generator'
+
+ObjectHelper = Class.new
+
+class HelperGeneratorTest < GeneratorsTestCase
+
+  def test_helper_skeleton_is_created
+    run_generator
+    assert_file "app/helpers/admin_helper.rb", /module AdminHelper/
+  end
+
+  def test_invokes_default_test_framework
+    run_generator
+    assert_file "test/unit/helpers/admin_helper_test.rb"
+  end
+
+  def test_logs_if_the_test_framework_cannot_be_found
+    content = run_generator ["admin", "--test-framework=unknown"]
+    assert_match /Could not find and invoke 'unknown:generators:helper'/, content
+  end
+
+  def test_check_class_collision
+    content = capture(:stderr){ run_generator ["object"] }
+    assert_match /The name 'ObjectHelper' is either already used in your application or reserved/, content
+  end
+
+  protected
+
+    def run_generator(args=["admin"])
+      silence(:stdout) { Rails::Generators::HelperGenerator.start args, :root => destination_root }
+    end
+
+end

railties/test/generators/integration_test_generator_test.rb

@@ -6,7 +6,7 @@ class IntegrationTestGeneratorTest < GeneratorsTestCase
 
   def test_integration_test_skeleton_is_created
     run_generator
-    assert_file "test/integration/integration_test.rb"
+    assert_file "test/integration/integration_test.rb", /class IntegrationTest < ActionController::IntegrationTest/
   end
 
   protected

railties/test/generators/performance_test_generator_test.rb

@@ -6,7 +6,7 @@ class PerformanceTestGeneratorTest < GeneratorsTestCase
 
   def test_performance_test_skeleton_is_created
     run_generator
-    assert_file "test/performance/performance_test.rb"
+    assert_file "test/performance/performance_test.rb", /class PerformanceTest < ActionController::PerformanceTest/
   end
 
   protected