From f1b76ea63ce40670071a857f408a4747c571f1e9 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 27 Jul 2019 21:54:34 +0900
Subject: Occupy match data

* string.c (rb_str_split_m): occupy match data not to be modified
  during yielding the block.  [Bug #16024]
---
 test/ruby/test_string.rb | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index 611bb797bc..7ae3bf272e 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -1779,6 +1779,9 @@ CODE
 
     result = []; "".split(//, 1) {|s| result << s}
     assert_equal([], result)
+
+    result = []; "aaa,bbb,ccc,ddd".split(/,/) {|s| result << s.gsub(/./, "A")}
+    assert_equal(["AAA"]*4, result)
   ensure
     EnvUtil.suppress_warning {$; = fs}
   end
-- 
cgit v1.2.3