* vm_method.c (rb_add_method_def): no redefinition warning on

  undef.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25206 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 1 deletions

diff --git a/test/ruby/test_class.rb b/test/ruby/test_class.rb
index 409fc49e4e..8fe1272314 100644
--- a/test/ruby/test_class.rb
+++ b/test/ruby/test_class.rb
@@ -150,7 +150,15 @@ class TestClass < Test::Unit::TestCase
       Class.new do
         define_method(:foo) do end
         alias bar foo
-        alias barf oo
+        alias bar foo
+      end
+    end
+    assert_equal("", stderr)
+
+    stderr = EnvUtil.verbose_warning do
+      Class.new do
+        def foo; end
+        undef foo
       end
     end
     assert_equal("", stderr)