* test/test_forwardable.rb (TestForwardable#test_on_private_method): add test for [Bug #12782] [Bug #12840]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/test_forwardable.rb b/test/test_forwardable.rb
index 0d3fe19213..e48dbfe18f 100644
--- a/test/test_forwardable.rb
+++ b/test/test_forwardable.rb
@@ -285,6 +285,17 @@ class TestForwardable < Test::Unit::TestCase
     assert_equal(42, -obj)
   end
 
+  def test_on_private_method
+    cls = Class.new do
+      private def foo; :foo end
+      extend Forwardable
+      def_delegator :itself, :foo, :bar
+    end
+    assert_warn(/forwarding to private method/) do
+      assert_equal(:foo, cls.new.bar)
+    end
+  end
+
   private
 
   def forwardable_class(