class.c: exclude refined methods

* class.c (method_entry_i): should exclude refined methods from
  instance method list.  [ruby-core:57080] [Bug #8881]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42903 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 02193ae615..60681b2f1a 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1005,6 +1005,17 @@ class TestRefinement < Test::Unit::TestCase
     end;
   end
 
+  def test_instance_methods
+    bug8881 = '[ruby-core:57080] [Bug #8881]'
+    assert_not_include(Foo.instance_methods(false), :z, bug8881)
+    assert_not_include(FooSub.instance_methods(true), :z, bug8881)
+  end
+
+  def test_method_defined
+    assert_not_send([Foo, :method_defined?, :z])
+    assert_not_send([FooSub, :method_defined?, :z])
+  end
+
   private
 
   def eval_using(mod, s)