visibility of inherited method

* vm_insnhelper.c (vm_call_method_each_type): honor the original
  visibility of inherited methods when a refinement is defined but
  not activated.  [ruby-core:82209] [Bug #13776]

Author:    Mon_Ouie (Mon ouïe) <mon.ouie@gmail.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59445 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 44 insertions, 0 deletions

diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 82bdb49659..c7df789306 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1900,6 +1900,50 @@ class TestRefinement < Test::Unit::TestCase
     end
   end
 
+  class ParentDefiningPrivateMethod
+    private
+    def some_inherited_method
+    end
+  end
+
+  module MixinDefiningPrivateMethod
+    private
+    def some_included_method
+    end
+  end
+
+  class SomeChildClassToRefine < ParentDefiningPrivateMethod
+    include MixinDefiningPrivateMethod
+
+    private
+    def some_method
+    end
+  end
+
+  def test_refine_inherited_method_with_visibility_changes
+    Module.new do
+      refine(SomeChildClassToRefine) do
+        def some_inherited_method; end
+        def some_included_method; end
+        def some_method; end
+      end
+    end
+
+    obj = SomeChildClassToRefine.new
+
+    assert_raise_with_message(NoMethodError, /private/) do
+      obj.some_inherited_method
+    end
+
+    assert_raise_with_message(NoMethodError, /private/) do
+      obj.some_included_method
+    end
+
+    assert_raise_with_message(NoMethodError, /private/) do
+      obj.some_method
+    end
+  end
+
   private
 
   def eval_using(mod, s)