1 files changed, 4 insertions, 0 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 3dc19ce629..19857b035c 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -2668,6 +2668,10 @@ class TestRefinement < Test::Unit::TestCase
     end
   end
 
+  def test_inherit_singleton_methods_of_module
+    assert_equal([], Refinement.used_modules)
+  end
+
   private
 
   def eval_using(mod, s)