diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.4/11.4.2/S11.4.2_A4_T3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.4/11.4.2/S11.4.2_A4_T3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Operator "void" evaluates UnaryExpression and returns undefined
+ *
+ * @path ch11/11.4/11.4.2/S11.4.2_A4_T3.js
+ * @description Type(x) is string primitive of String object
+ */
+
+//CHECK#1
+var x = "1";
+if (void x !== undefined) {
+  $ERROR('#1: var x = "1"; void x === undefined. Actual: ' + (void x));
+}
+
+//CHECK#2
+var x = "x"; 
+if (isNaN(void x) !== true) {
+  $ERROR('#2: var x = "x"; void x === undefined. Actual: ' + (void x));
+}
+
+//CHECK#3
+var x = new String("-1");
+if (void x !== undefined) {
+  $ERROR('#3: var x = new String("-1"); void x === undefined. Actual: ' + (void x));
+}
+