From d05f04d27dd86c67e4a8dfff4392f806cf577bdf Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 2 Jun 2020 18:55:06 +0900
Subject: Fixed `defined?` against protected method call

Protected methods are restricted to be called according to the
class/module in where it is defined, not the actual receiver's
class.  [Bug #16931]
---
 test/ruby/test_defined.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_defined.rb b/test/ruby/test_defined.rb
index 387472a62d..e1571d5714 100644
--- a/test/ruby/test_defined.rb
+++ b/test/ruby/test_defined.rb
@@ -59,6 +59,7 @@ class TestDefined < Test::Unit::TestCase
     f = Foo.new
     assert_nil(defined?(f.foo))         # protected method
     f.bar(f) { |v| assert(v) }
+    f.bar(Class.new(Foo).new) { |v| assert(v, "inherited protected method") }
   end
 
   def test_defined_undefined_method
-- 
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