From c815f7e7cf7bad7df5e107544cd739f294470433 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 20 Nov 2015 19:34:19 +0000
Subject: symbol.c: not freeze the receiver

* symbol.c (rb_str_intern): should not freeze the receiver itself
  unexpectedly.  [ruby-core:71611] [Bug #11721]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52686 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_symbol.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 64ddf3fcf5..a7ffe7b8b9 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -336,4 +336,12 @@ class TestSymbol < Test::Unit::TestCase
       }
     end;
   end
+
+  def test_not_freeze
+    bug11721 = '[ruby-core:71611] [Bug #11721]'
+    str = "\u{1f363}".taint
+    assert_not_predicate(str, :frozen?)
+    assert_equal str, str.to_sym.to_s
+    assert_not_predicate(str, :frozen?, bug11721)
+  end
 end
-- 
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