From 6ed45bb43e2d30b50eda633cc1ba7ad0bcb48b54 Mon Sep 17 00:00:00 2001
From: Matthias Kunnen <matthias.kunnen@gmail.com>
Date: Tue, 21 Jul 2020 03:28:42 +0000
Subject: [PATCH] Test prototype pollution on unflatten

---
 test/test.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/test.js b/test/test.js
index 541c9d7..1835440 100644
--- a/test/test.js
+++ b/test/test.js
@@ -470,6 +470,20 @@ suite('Unflatten', function () {
       })
     })
   }
+
+  test('should not pollute prototype', function () {
+      unflatten({
+          '__proto__.polluted': true
+      });
+      unflatten({
+          'prefix.__proto__.polluted': true
+      });
+      unflatten({
+          'prefix.0.__proto__.polluted': true
+      });
+
+      assert.notStrictEqual({}.polluted, true);
+  })
 })
 
 suite('Arrays', function () {