1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/15.2.3.4-4-b-4.js b/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/15.2.3.4-4-b-4.js
new file mode 100644
index 0000000000..237dd11959
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/15.2.3.4-4-b-4.js
@@ -0,0 +1,24 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.2.3.4-4-b-4
+description: >
+    Object.getOwnPropertyNames - elements of the returned array are
+    writable
+---*/
+
+var obj = {
+  "a": "a"
+};
+
+var result = Object.getOwnPropertyNames(obj);
+
+var beforeOverride = (result[0] === "a");
+result[0] = "b";
+var afterOverride = (result[0] === "b");
+
+assert(beforeOverride, 'beforeOverride !== true');
+assert(afterOverride, 'afterOverride !== true');
+
+reportCompare(0, 0);