From 792d1deb949e8416d7a76d66771b286d35c8278d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 29 Jun 2019 19:07:25 +0900
Subject: Escape control codes in regexp warning message

---
 test/ruby/test_regexp.rb | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index 18a6d4d7c9..6cfd7df824 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -1124,6 +1124,8 @@ class TestRegexp < Test::Unit::TestCase
 
     bug8151 = '[ruby-core:53649]'
     assert_warning(/\A\z/, bug8151) { Regexp.new('(?:[\u{33}])').to_s }
+
+    assert_warning(%r[/.*/\Z]) { Regexp.new("[\n\n]") }
   end
 
   def test_property_warn
-- 
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