From e4ec2128ae9c5c2a43cd599759f19db21fc0238f Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 28 Dec 2024 18:40:37 +0900
Subject: [Bug #20990] Reject escaped multibyte char with control/meta prefix

---
 test/ruby/test_literal.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_literal.rb b/test/ruby/test_literal.rb
index 1fdc6aa853..941a4456d0 100644
--- a/test/ruby/test_literal.rb
+++ b/test/ruby/test_literal.rb
@@ -97,6 +97,10 @@ class TestRubyLiteral < Test::Unit::TestCase
     assert_equal "ab", eval("?a 'b'")
     assert_equal "a\nb", eval("<<A 'b'\na\nA")
 
+    assert_raise(SyntaxError) {eval('"\C-' "\u3042" '"')}
+    assert_raise(SyntaxError) {eval('"\C-\\' "\u3042" '"')}
+    assert_raise(SyntaxError) {eval('"\M-' "\u3042" '"')}
+    assert_raise(SyntaxError) {eval('"\M-\\' "\u3042" '"')}
   ensure
     $VERBOSE = verbose_bak
   end
-- 
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