diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma/Date/15.9.5.3-1-n.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma/Date/15.9.5.3-1-n.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/**
+   File Name:          15.9.5.3-1.js
+   ECMA Section:       15.9.5.3-1 Date.prototype.valueOf
+   Description:
+
+   The valueOf function returns a number, which is this time value.
+
+   The valueOf function is not generic; it generates a runtime error if
+   its this value is not a Date object.  Therefore it cannot be transferred
+   to other kinds of objects for use as a method.
+
+   Author:             christine@netscape.com
+   Date:               12 november 1997
+*/
+
+var SECTION = "15.9.5.3-1-n";
+var VERSION = "ECMA_1";
+startTest();
+var TITLE   = "Date.prototype.valueOf";
+
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+var OBJ = new MyObject( new Date(0) );
+
+DESCRIPTION = "var OBJ = new MyObject( new Date(0) ); OBJ.valueOf()";
+EXPECTED = "error";
+
+new TestCase( SECTION,
+	      "var OBJ = new MyObject( new Date(0) ); OBJ.valueOf()",
+	      "error",
+	      eval("OBJ.valueOf()") );
+test();
+
+function MyObject( value ) {
+  this.value = value;
+  this.valueOf = Date.prototype.valueOf;
+//  The following line causes an infinte loop
+//    this.toString = new Function( "return this+\"\";");
+  return this;
+}