diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch10/10.6/S10.6_A5_T3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch10/10.6/S10.6_A5_T3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * A property is created with name length with property
+ * attributes { DontEnum } and no others
+ *
+ * @path ch10/10.6/S10.6_A5_T3.js
+ * @description Checking if deleting arguments.length property fails
+ */
+
+//CHECK#1
+function f1(){
+  return (delete arguments.length); 
+}
+
+try{
+  if(!f1()){
+    $ERROR("#1: A property length have attribute { DontDelete }");
+  }
+}
+catch(e){
+  $ERROR("#1: arguments object don't exists");
+}
+
+//CHECK#2
+var f2 = function(){
+  return (delete arguments.length); 
+}
+
+try{
+  if(!f2()){
+    $ERROR("#2: A property length have attribute { DontDelete }");
+  }
+}
+catch(e){
+  $ERROR("#2: arguments object don't exists");
+}
+