1 files changed, 15 insertions, 0 deletions
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index c7acac05f9..ce6e8a66bb 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -985,4 +985,19 @@ class TestModule < Test::Unit::TestCase
   def test_constants_with_private_constant
     assert(!(::TestModule).constants.include?(:PrivateClass))
   end
+
+  def test_toplevel_private_constant
+    src = <<-INPUT
+      class Object
+        private_constant :Object
+      end
+      p Object
+      begin
+        p ::Object
+      rescue
+        p :ok
+      end
+    INPUT
+    assert_in_out_err([], src, %w(Object :ok), [])
+  end
 end