diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.9/11.9.1/S11.9.1_A5.1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.9/11.9.1/S11.9.1_A5.1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Type(x) and Type(y) are String-s.
+ * Return true, if x and y are exactly the same sequence of characters; otherwise, return false
+ *
+ * @path ch11/11.9/11.9.1/S11.9.1_A5.1.js
+ * @description x and y are primitive string
+ */
+
+//CHECK#1
+if (("" == "") !== true) {
+  $ERROR('#1: ("" == "") === true');
+}
+
+//CHECK#2
+if ((" " == " ") !== true) {
+  $ERROR('#2: " (" == " ") === true');
+}
+
+//CHECK#3
+if ((" " == "") !== false) {
+  $ERROR('#3: " (" == "") === false');
+}
+
+//CHECK#4
+if (("string" == "string") !== true) {
+  $ERROR('#4: ("string" == "string") === true');
+}
+
+//CHECK#5
+if ((" string" == "string ") !== false) {
+  $ERROR('#5: (" string" == "string ") === false');
+}
+
+//CHECK#6
+if (("1.0" == "1") !== false) {
+  $ERROR('#6: ("1.0" == "1") === false');
+}
+
+//CHECK#7
+if (("0xff" == "255") !== false) {
+  $ERROR('#7: ("0xff" == "255") === false');
+}
+