1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-408.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-408.js
new file mode 100644
index 0000000000..30f7518af8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-408.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: 15.2.3.6-4-408
+description: >
+    ES5 Attributes - Successfully add a property to an object when the
+    object's prototype has a property with same name and [[Writable]]
+    attribute is set to true (Date instance)
+---*/
+
+Object.defineProperty(Date.prototype, "prop", {
+  value: 1001,
+  writable: true,
+  enumerable: true,
+  configurable: true
+});
+var dateObj = new Date();
+dateObj.prop = 1002;
+
+assert(dateObj.hasOwnProperty("prop"), 'dateObj.hasOwnProperty("prop") !== true');
+assert.sameValue(dateObj.prop, 1002, 'dateObj.prop');
+
+reportCompare(0, 0);