diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.8/11.8.3/S11.8.3_A3.1_T1.3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.8/11.8.3/S11.8.3_A3.1_T1.3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Operator x <= y returns ToNumber(x) <= ToNumber(y), if Type(Primitive(x)) is not String or Type(Primitive(y)) is not String
+ *
+ * @path ch11/11.8/11.8.3/S11.8.3_A3.1_T1.3.js
+ * @description Type(Primitive(x)) and Type(Primitive(y)) vary between Null and Undefined
+ */
+
+//CHECK#1
+if (null <= undefined !== false) {
+  $ERROR('#1: null <= undefined === false');
+}
+
+//CHECK#2
+if (undefined <= null !== false) {
+  $ERROR('#2: undefined <= null === false');
+}
+
+//CHECK#3
+if (undefined <= undefined !== false) {
+  $ERROR('#3: undefined <= undefined === false');
+}
+
+//CHECK#4
+if (null <= null !== true) {
+  $ERROR('#4: null <= null === true');
+}
+