diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.9/11.9.2/S11.9.2_A6.1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.9/11.9.2/S11.9.2_A6.1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * If Type(x) as well as Type(y) is Undefined or Null, return true
+ *
+ * @path ch11/11.9/11.9.2/S11.9.2_A6.1.js
+ * @description Checking all combinations
+ */
+
+//CHECK#1
+if ((undefined != undefined) !== false) {
+  $ERROR('#1: (undefined != undefined) === false');
+}
+
+//CHECK#2
+if ((void 0 != undefined) !== false) {
+  $ERROR('#2: (void 0 != undefined) === false');
+}
+
+//CHECK#3
+if ((undefined != eval("var x")) !== false) {
+  $ERROR('#3: (undefined != eval("var x")) === false');
+}
+
+//CHECK#4
+if ((undefined != null) !== false) {
+  $ERROR('#4: (undefined != null) === false');
+}
+
+//CHECK#5
+if ((null != void 0) !== false) {
+  $ERROR('#5: (null != void 0) === false');
+}
+
+//CHECK#6
+if ((null != null) !== false) {
+  $ERROR('#6: (null != null) === false');
+}
+