1 files changed, 60 insertions, 0 deletions
diff --git a/railties/test/generators/helper_generator_test.rb b/railties/test/generators/helper_generator_test.rb
new file mode 100644
index 0000000000..3d655016f1
--- /dev/null
+++ b/railties/test/generators/helper_generator_test.rb
@@ -0,0 +1,60 @@
+require 'abstract_unit'
+require 'generators/generators_test_helper'
+require 'generators/rails/helper/helper_generator'
+
+ObjectHelper = Class.new
+AnotherObjectHelperTest = 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", /class AdminHelperTest < ActionView::TestCase/
+  end
+
+  def test_logs_if_the_test_framework_cannot_be_found
+    content = run_generator ["admin", "--test-framework=rspec"]
+    assert_match /rspec \[not found\]/, 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
+
+  def test_check_class_collision_on_tests
+    content = capture(:stderr){ run_generator ["another_object"] }
+    assert_match /The name 'AnotherObjectHelperTest' is either already used in your application or reserved/, content
+  end
+
+  def test_namespaced_and_not_namespaced_helpers
+    run_generator ["products"]
+
+    # We have to require the generated helper to show the problem because
+    # the test helpers just check for generated files and contents but
+    # do not actually load them. But they have to be loaded (as in a real environment)
+    # to make the second generator run fail
+    require "#{destination_root}/app/helpers/products_helper"
+
+    assert_nothing_raised do
+      begin
+        run_generator ["admin::products"]
+      ensure
+        # cleanup
+        Object.send(:remove_const, :ProductsHelper)
+      end
+    end
+  end
+
+  protected
+
+    def run_generator(args=["admin"])
+      silence(:stdout) { Rails::Generators::HelperGenerator.start args, :destination_root => destination_root }
+    end
+
+end