1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/entries/tamper-with-global-object.js b/js/src/tests/test262/built-ins/Object/entries/tamper-with-global-object.js
new file mode 100644
index 0000000000..150a4bf754
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/entries/tamper-with-global-object.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2015 Jordan Harband. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-object.entries
+description: >
+    Object.entries should not have its behavior impacted by modifications to the global property Object
+author: Jordan Harband
+---*/
+
+function fakeObject() {
+  throw new Test262Error('The overriden version of Object was called!');
+}
+fakeObject.entries = Object.entries;
+
+var global = Function('return this;')();
+global.Object = fakeObject;
+
+assert.sameValue(Object, fakeObject, 'Sanity check failed: could not modify the global Object');
+assert.sameValue(Object.entries(1).length, 0, 'Expected number primitive to have zero entries');
+
+reportCompare(0, 0);