1 files changed, 127 insertions, 0 deletions
diff --git a/actionview/test/actionpack/abstract/helper_test.rb b/actionview/test/actionpack/abstract/helper_test.rb
new file mode 100644
index 0000000000..4e05245584
--- /dev/null
+++ b/actionview/test/actionpack/abstract/helper_test.rb
@@ -0,0 +1,127 @@
+require 'abstract_unit'
+
+ActionController::Base.helpers_path = File.expand_path('../../../fixtures/helpers', __FILE__)
+
+module AbstractController
+  module Testing
+
+    class ControllerWithHelpers < AbstractController::Base
+      include AbstractController::Helpers
+      include AbstractController::Rendering
+      include ActionView::Rendering
+
+      def with_module
+        render :inline => "Module <%= included_method %>"
+      end
+    end
+
+    module HelperyTest
+      def included_method
+        "Included"
+      end
+    end
+
+    class AbstractHelpers < ControllerWithHelpers
+      helper(HelperyTest) do
+        def helpery_test
+          "World"
+        end
+      end
+
+      helper :abc
+
+      def with_block
+        render :inline => "Hello <%= helpery_test %>"
+      end
+
+      def with_symbol
+        render :inline => "I respond to bare_a: <%= respond_to?(:bare_a) %>"
+      end
+    end
+
+    class ::HelperyTestController < AbstractHelpers
+      clear_helpers
+    end
+
+    class AbstractHelpersBlock < ControllerWithHelpers
+      helper do
+        include AbstractController::Testing::HelperyTest
+      end
+    end
+
+    class AbstractInvalidHelpers < AbstractHelpers
+      include ActionController::Helpers
+
+      path = File.join(File.expand_path('../../../fixtures', __FILE__), "helpers_missing")
+      $:.unshift(path)
+      self.helpers_path = path
+    end
+
+    class TestHelpers < ActiveSupport::TestCase
+      def setup
+        @controller = AbstractHelpers.new
+      end
+
+      def test_helpers_with_block
+        @controller.process(:with_block)
+        assert_equal "Hello World", @controller.response_body
+      end
+
+      def test_helpers_with_module
+        @controller.process(:with_module)
+        assert_equal "Module Included", @controller.response_body
+      end
+
+      def test_helpers_with_symbol
+        @controller.process(:with_symbol)
+        assert_equal "I respond to bare_a: true", @controller.response_body
+      end
+
+      def test_declare_missing_helper
+        AbstractHelpers.helper :missing
+        flunk "should have raised an exception"
+      rescue LoadError => e
+        assert_equal "helpers/missing_helper.rb", e.path
+      end
+
+      def test_helpers_with_module_through_block
+        @controller = AbstractHelpersBlock.new
+        @controller.process(:with_module)
+        assert_equal "Module Included", @controller.response_body
+      end
+    end
+
+    class ClearHelpersTest < ActiveSupport::TestCase
+      def setup
+        @controller = HelperyTestController.new
+      end
+
+      def test_clears_up_previous_helpers
+        @controller.process(:with_symbol)
+        assert_equal "I respond to bare_a: false", @controller.response_body
+      end
+
+      def test_includes_controller_default_helper
+        @controller.process(:with_block)
+        assert_equal "Hello Default", @controller.response_body
+      end
+    end
+
+    class InvalidHelpersTest < ActiveSupport::TestCase
+      def test_controller_raise_error_about_real_require_problem
+        e = assert_raise(LoadError) { AbstractInvalidHelpers.helper(:invalid_require) }
+        assert_equal "No such file to load -- very_invalid_file_name", e.message
+      end
+
+      def test_controller_raise_error_about_missing_helper
+        e = assert_raise(AbstractController::Helpers::MissingHelperError) { AbstractInvalidHelpers.helper(:missing) }
+        assert_equal "Missing helper file helpers/missing_helper.rb", e.message
+      end
+
+      def test_missing_helper_error_has_the_right_path
+        e = assert_raise(AbstractController::Helpers::MissingHelperError) { AbstractInvalidHelpers.helper(:missing) }
+        assert_equal "helpers/missing_helper.rb", e.path
+      end
+    end
+  end
+end