From e56eea5e37a43879465d2d1d99e0e0dc89ae8684 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 15 Feb 2012 01:33:56 +0000
Subject: merge revision(s) r34564:

	* vm_eval.c (check_funcall):  Call respond_to? with matching arity for
	  legacy single-argument implementations.  [ruby-trunk - Bug #6000]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@34616 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_object.rb | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index d33b9f6341..3705df21c1 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -420,6 +420,20 @@ class TestObject < Test::Unit::TestCase
     assert_equal([[:respond_to?, :to_ary, true]], called, bug5158)
   end
 
+  def test_implicit_respond_to_arity_1
+    p = Object.new
+
+    called = []
+    p.singleton_class.class_eval do
+      define_method(:respond_to?) do |a|
+        called << [:respond_to?, a]
+        false
+      end
+    end
+    [[p]].flatten
+    assert_equal([[:respond_to?, :to_ary]], called, '[bug:6000]')
+  end
+
   def test_method_missing_passed_block
     bug5731 = '[ruby-dev:44961]'
 
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