diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch08/8.4/S8.4_A10.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch08/8.4/S8.4_A10.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Both unicode and ascii chars are allowed
+ *
+ * @path ch08/8.4/S8.4_A10.js
+ * @description Create string using both unicode and ascii chars
+ */
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+var __str = "\u0041A\u0042B\u0043C";
+if (__str !== 'AABBCC'){
+  $ERROR('#1: var __str = "\\u0041A\\u0042B\\u0043C"; __str === \'AABBCC\'. Actual: ' + (__str));
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+var __str__ = "\u0041\u0042\u0043"+'ABC';
+if (__str__ !== 'ABCABC'){
+  $ERROR('#2: var __str__ = "\\u0041\\u0042\\u0043"+\'ABC\'; __str__ === \'ABCABC\'. Actual: ' + (__str__));
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#3
+var str__ = "ABC"+'\u0041\u0042\u0043';
+if (str__ !== "ABCABC"){
+  $ERROR('#2: var str__ = "ABC"+\'\\u0041\\u0042\\u0043\'; str__ === "ABCABC". Actual: ' + (str__));
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+