From e1be1d0c3815be2819f525e3c1d1ec34ccdc398b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 23 Sep 2017 07:09:06 +0000
Subject: dup String#rpartition return value

* string.c (rb_str_rpartition): return duplicated receiver, when
  no splits.  [ruby-core:82911] [Bug#13925]

Author:    Seiei Miyagi <hanachin@gmail.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_string.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'test/ruby/test_string.rb')

diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index b90c620381..08dc806380 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -2445,6 +2445,11 @@ CODE
     bug8138 = '[ruby-dev:47183]'
     assert_equal(["\u30E6\u30FC\u30B6@\u30C9\u30E1", ".", "\u30A4\u30F3"],
       "\u30E6\u30FC\u30B6@\u30C9\u30E1.\u30A4\u30F3".rpartition(/[@.]/), bug8138)
+
+    bug = '[ruby-core:82911]'
+    hello = "hello"
+    hello.rpartition("hi").map(&:upcase!)
+    assert_equal("hello", hello, bug)
   end
 
   def test_setter
-- 
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