From 1e22306569e43251f946145ab49662ee6fe76151 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 12 Oct 2010 09:25:33 +0000
Subject: * string.c (rb_str_concat): use unsigned int for GB18030.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29453 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_m17n_comb.rb | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_m17n_comb.rb b/test/ruby/test_m17n_comb.rb
index cf80377172..e730f6f0e8 100644
--- a/test/ruby/test_m17n_comb.rb
+++ b/test/ruby/test_m17n_comb.rb
@@ -346,6 +346,9 @@ class TestM17NComb < Test::Unit::TestCase
         assert_raise(Encoding::CompatibilityError) { s << s2 }
       end
     }
+
+    assert_equal("A\x84\x31\xA4\x39".force_encoding("GB18030"),
+                 "A".force_encoding("GB18030") << 0x8431A439)
   end
 
   def test_str_aref
-- 
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