From 7dc6da74e5334c25c2c99b1c13408c8e90b4d16f Mon Sep 17 00:00:00 2001
From: Outsider <outsideris@gmail.com>
Date: Fri, 26 Aug 2022 02:50:01 +0900
Subject: [PATCH] add test for ReDoS

Signed-off-by: Outsider <outsideris@gmail.com>
---
 test/unit/utils.spec.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/unit/utils.spec.js b/test/unit/utils.spec.js
index adb36c4cd6..ad423f382c 100644
--- a/test/unit/utils.spec.js
+++ b/test/unit/utils.spec.js
@@ -142,6 +142,12 @@ describe('lib/utils', function () {
       var fn = '() => foo()';
       expect(utils.clean(fn), 'to be', 'foo()');
     });
+
+    it('should prevent ReDoS attack', function () {
+      this.timeout(100);
+      var attackFn = 'function' + ' '.repeat(20000);
+      expect(utils.clean(attackFn), 'to be', 'function');
+    });
   });
 
   describe('stringify()', function () {