From 95fd4eda53b904dfe5be44f19fb774229f358b10 Mon Sep 17 00:00:00 2001
From: shugo <shugo@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 5 Nov 2016 02:57:40 +0000
Subject: * test/ruby/test_refinement.rb (test_refine_alias_in_subclass):   add
 a test to check that alias in subclasses can be refined.   [ruby-core:69374]
 [Bug #11186]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                    |  6 ++++++
 test/ruby/test_refinement.rb | 25 +++++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 2300af62e8..032bf8e9e2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Nov  5 11:53:02 2016  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* test/ruby/test_refinement.rb (test_refine_alias_in_subclass):
+	  add a test to check that alias in subclasses can be refined.
+	  [ruby-core:69374] [Bug #11186]
+
 Sat Nov  5 11:20:57 2016  Shugo Maeda  <shugo@ruby-lang.org>
 
 	* cont.c (cont_new): disable optimization if clang's version is
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 3b3ceb048c..5cbb11121b 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -1750,6 +1750,31 @@ class TestRefinement < Test::Unit::TestCase
     assert_equal("Foo#x", FooExtClient.return_proc(&:x).(Foo.new))
   end
 
+  module AliasInSubclass
+    class C
+      def foo
+        :original
+      end
+    end
+
+    class D < C
+      alias bar foo
+    end
+
+    module M
+      refine D do
+        def bar
+          :refined
+        end
+      end
+    end
+  end
+
+  def test_refine_alias_in_subclass
+    assert_equal(:refined,
+                 eval_using(AliasInSubclass::M, "AliasInSubclass::D.new.bar"))
+  end
+
   private
 
   def eval_using(mod, s)
-- 
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