diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.6/11.6.2/S11.6.2_A3_T1.5.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.6/11.6.2/S11.6.2_A3_T1.5.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)
+ *
+ * @path ch11/11.6/11.6.2/S11.6.2_A3_T1.5.js
+ * @description Type(x) and Type(y) vary between Object object and Function object
+ */
+
+//CHECK#1
+if (isNaN({} - function(){return 1}) !== true) {
+  $ERROR('#1: {} - function(){return 1} === Not-a-Number. Actual: ' + ({} - function(){return 1}));
+}
+
+//CHECK#2
+if (isNaN(function(){return 1} - {}) !== true) {
+  $ERROR('#2: function(){return 1} - {} === Not-a-Number. Actual: ' + (function(){return 1} - {}));
+}
+
+//CHECK#3
+if (isNaN(function(){return 1} - function(){return 1}) !== true) {
+  $ERROR('#3: function(){return 1} - function(){return 1} === Not-a-Number. Actual: ' + (function(){return 1} - function(){return 1}));
+}
+
+//CHECK#4
+if (isNaN({} - {}) !== true) {
+  $ERROR('#4: {} - {} === Not-a-Number. Actual: ' + ({} - {}));
+}
+