1 files changed, 33 insertions, 0 deletions
diff --git a/actionpack/test/controller/deprecated_instance_variables_test.rb b/actionpack/test/controller/deprecated_instance_variables_test.rb
new file mode 100644
index 0000000000..81e7ba1324
--- /dev/null
+++ b/actionpack/test/controller/deprecated_instance_variables_test.rb
@@ -0,0 +1,33 @@
+require File.dirname(__FILE__) + '/../abstract_unit'
+
+class DeprecatedInstanceVariablesTest < Test::Unit::TestCase
+  class Target < ActionController::Base
+    ActionController::Base::DEPRECATED_INSTANCE_VARIABLES.each do |var|
+      class_eval "def old_#{var}; render :text => @#{var}.inspect end"
+      class_eval "def new_#{var}; render :text => #{var}.inspect end"
+      class_eval "def internal_#{var}; render :text => @_#{var}.inspect end"
+    end
+
+    def rescue_action(e) raise e end
+  end
+
+  def setup
+    @request    = ActionController::TestRequest.new
+    @response   = ActionController::TestResponse.new
+    @controller = Target.new
+  end
+
+  ActionController::Base::DEPRECATED_INSTANCE_VARIABLES.each do |var|
+    class_eval <<-end_eval, __FILE__, __LINE__
+      def test_old_#{var}_is_deprecated
+        assert_deprecated('@#{var}') { get :old_#{var} }
+      end
+      def test_new_#{var}_isnt_deprecated
+        assert_not_deprecated { get :new_#{var} }
+      end
+      def test_internal_#{var}_isnt_deprecated
+        assert_not_deprecated { get :internal_#{var} }
+      end
+    end_eval
+  end
+end