From 1a95e46cc6194933cf75a4bf91a0bb6502f177a0 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 22 Jul 2014 03:56:26 +0000
Subject: string.c: fix wrong single-byte optimization

* string.c (rb_str_count): fix wrong single-byte optimization.
  7bit ascii can be a trailing byte in Shift_JIS.
  [ruby-dev:48442] [Bug #10078]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_m17n.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_m17n.rb b/test/ruby/test_m17n.rb
index b9b85b2129..7d00b1aec6 100644
--- a/test/ruby/test_m17n.rb
+++ b/test/ruby/test_m17n.rb
@@ -1037,6 +1037,11 @@ class TestM17N < Test::Unit::TestCase
     assert_raise(Encoding::CompatibilityError){s.count(a("\xa3\xb0"))}
   end
 
+  def test_count_sjis_trailing_byte
+    bug10078 = '[ruby-dev:48442] [Bug #10078]'
+    assert_equal(0, s("\x98\x61").count("a"), bug10078)
+  end
+
   def test_delete
     assert_equal(1, e("\xa1\xa2").delete("z").length)
     s = e("\xa3\xb0\xa3\xb1\xa3\xb2\xa3\xb3\xa3\xb4")
-- 
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