From a5819b5b2510556de0719317662d96096ce4089a Mon Sep 17 00:00:00 2001
From: TSUYUSATO Kitsune <make.just.on@gmail.com>
Date: Mon, 22 May 2023 11:27:34 +0900
Subject: Allow the match cache optimization for atomic groups (#7804)

---
 test/ruby/test_regexp.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index d04b9cf766..0a72caba45 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -1760,6 +1760,16 @@ class TestRegexp < Test::Unit::TestCase
     end;
   end
 
+  def test_match_cache_atomic
+    assert_separately([], "#{<<-"begin;"}\n#{<<-'end;'}")
+      timeout = #{ EnvUtil.apply_timeout_scale(10).inspect }
+    begin;
+      Regexp.timeout = timeout
+
+      assert_nil(/^(?>a?a?)(a|a)*$/ =~ "a" * 1000000 + "x")
+    end;
+  end
+
   def test_cache_opcodes_initialize
     str = 'test1-test2-test3-test4-test_5'
     re = '^([0-9a-zA-Z\-/]*){1,256}$'
-- 
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