diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.5/11.5.1/S11.5.1_A4_T1.1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.5/11.5.1/S11.5.1_A4_T1.1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * The result of a floating-point multiplication is governed by the rules of IEEE 754 double-precision arithmetics
+ *
+ * @path ch11/11.5/11.5.1/S11.5.1_A4_T1.1.js
+ * @description If left operand is NaN, the result is NaN
+ */
+
+//CHECK#1
+if (isNaN(Number.NaN * Number.NaN) !== true) {
+  $ERROR('#1: NaN * NaN === Not-a-Number. Actual: ' + (NaN * NaN));
+}  
+
+//CHECK#2
+if (isNaN(Number.NaN * +0) !== true) {
+  $ERROR('#2: NaN * +0 === Not-a-Number. Actual: ' + (NaN * +0)); 
+} 
+
+//CHECK#3
+if (isNaN(Number.NaN * -0) !== true) {
+  $ERROR('#3: NaN * -0 === Not-a-Number. Actual: ' + (NaN * -0)); 
+} 
+
+//CHECK#4
+if (isNaN(Number.NaN * Number.POSITIVE_INFINITY) !== true) {
+  $ERROR('#4: NaN * Infinity === Not-a-Number. Actual: ' + (NaN * Infinity));
+} 
+
+//CHECK#5
+if (isNaN(Number.NaN * Number.NEGATIVE_INFINITY) !== true) {
+  $ERROR('#5: NaN * -Infinity === Not-a-Number. Actual: ' + (NaN * -Infinity)); 
+} 
+
+//CHECK#6
+if (isNaN(Number.NaN * Number.MAX_VALUE) !== true) {
+  $ERROR('#6: NaN * Number.MAX_VALUE === Not-a-Number. Actual: ' + (NaN * Number.MAX_VALUE));
+} 
+
+//CHECK#7
+if (isNaN(Number.NaN * Number.MIN_VALUE) !== true) {
+  $ERROR('#7: NaN * Number.MIN_VALUE === Not-a-Number. Actual: ' + (NaN * Number.MIN_VALUE)); 
+}
+
+//CHECK#8
+if (isNaN(Number.NaN * 1) !== true) {
+  $ERROR('#8: NaN * 1 === Not-a-Number. Actual: ' + (NaN * 1));  
+} 
+