1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index a53fe2b522..2ecbf8edf0 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -74,6 +74,10 @@ class TestRefinement < Test::Unit::TestCase
     using TestRefinement::FooExt
 
     begin
+      def self.map_x_on(foo)
+        [foo].map(&:x)[0]
+      end
+
       def self.invoke_x_on(foo)
         return foo.x
       end
@@ -1737,6 +1741,10 @@ class TestRefinement < Test::Unit::TestCase
     INPUT
   end
 
+  def test_symbol_proc
+    assert_equal("FooExt#x", FooExtClient.map_x_on(Foo.new))
+  end
+
   private
 
   def eval_using(mod, s)