diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.2/11.2.4/S11.2.4_A1.4_T3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.2/11.2.4/S11.2.4_A1.4_T3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Arguments : (ArgumentList : ArgumentList, AssignmentExpression)
+ *
+ * @path ch11/11.2/11.2.4/S11.2.4_A1.4_T3.js
+ * @description Return an internal list whose length is one greater than the
+ * length of ArgumentList and whose items are the items of ArgumentList, in order,
+ * followed at the end by GetValue(AssignmentExpression), which is the last item of
+ * the new list
+ */
+
+function f_arg(x,y,z) {
+  return z;
+}
+
+//CHECK#1
+if (f_arg(x=1,y=x,x+y) !== 2) {
+  $ERROR('#1: function f_arg(x,y,z) {return z;} f_arg(x=1,y=x,x+y) === 2. Actual: ' + (f_arg(x=1,y=x,x+y)));    
+}
+