Clean up Sweeper controller accessor when an Error is raised

1 files changed, 11 insertions, 0 deletions

diff --git a/actionpack/test/controller/filters_test.rb b/actionpack/test/controller/filters_test.rb
index b9cb93f0f4..afc00a3c9d 100644
--- a/actionpack/test/controller/filters_test.rb
+++ b/actionpack/test/controller/filters_test.rb
@@ -505,6 +505,10 @@ class FilterTest < ActionController::TestCase
     def show
       render :text => 'hello world'
     end
+
+    def error
+      raise StandardError.new
+    end
   end
 
   class ImplicitActionsController < ActionController::Base
@@ -534,6 +538,13 @@ class FilterTest < ActionController::TestCase
     assert_equal 'hello world', response.body
   end
 
+  def test_sweeper_should_clean_up_if_exception_is_raised
+    assert_raise StandardError do
+      test_process(SweeperTestController, 'error')
+    end
+    assert_nil AppSweeper.instance.controller
+  end
+
   def test_before_method_of_sweeper_should_always_return_true
     sweeper = ActionController::Caching::Sweeper.send(:new)
     assert sweeper.before(TestController.new)