diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.5/11.5.2/S11.5.2_A4_T1.2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.5/11.5.2/S11.5.2_A4_T1.2.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 division is determined by the specification of IEEE 754 arithmetics
+ *
+ * @path ch11/11.5/11.5.2/S11.5.2_A4_T1.2.js
+ * @description If right 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(+0 / Number.NaN) !== true) {
+  $ERROR('#2: +0 / NaN === Not-a-Number. Actual: ' + (+0 / NaN)); 
+} 
+
+//CHECK#3
+if (isNaN(-0 / Number.NaN) !== true) {
+  $ERROR('#3: -0 / NaN === Not-a-Number. Actual: ' + (-0 / NaN)); 
+} 
+
+//CHECK#4
+if (isNaN(Number.POSITIVE_INFINITY / Number.NaN) !== true) {
+  $ERROR('#4: Infinity / NaN === Not-a-Number. Actual: ' + (Infinity / NaN));
+} 
+
+//CHECK#5
+if (isNaN(Number.NEGATIVE_INFINITY / Number.NaN) !== true) {
+  $ERROR('#5:  -Infinity / NaN === Not-a-Number. Actual: ' + ( -Infinity / NaN)); 
+} 
+
+//CHECK#6
+if (isNaN(Number.MAX_VALUE / Number.NaN) !== true) {
+  $ERROR('#6: Number.MAX_VALUE / NaN === Not-a-Number. Actual: ' + (Number.MAX_VALUE / NaN));
+} 
+
+//CHECK#7
+if (isNaN(Number.MIN_VALUE / Number.NaN) !== true) {
+  $ERROR('#7: Number.MIN_VALUE / NaN === Not-a-Number. Actual: ' + (Number.MIN_VALUE / NaN)); 
+}
+
+//CHECK#8
+if (isNaN(1 / Number.NaN) !== true) {
+  $ERROR('#8: 1 / NaN === Not-a-Number. Actual: ' + (1 / NaN));  
+}
+