diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.3/11.3.1/S11.3.1_A3_T2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.3/11.3.1/S11.3.1_A3_T2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Operator x++ returns x = ToNumber(x) + 1
+ *
+ * @path ch11/11.3/11.3.1/S11.3.1_A3_T2.js
+ * @description Type(x) is number primitive or Number object
+ */
+
+//CHECK#1
+var x = 0.1; 
+x++;
+if (x !== 0.1 + 1) {
+  $ERROR('#1: var x = 0.1; x++; x === 0.1 + 1. Actual: ' + (x));
+}
+
+//CHECK#2
+var x = new Number(-1.1); 
+x++;
+if (x !== -1.1 + 1) {
+  $ERROR('#2: var x = new Number(-1.1); x++; x === -1.1 + 1. Actual: ' + (x));
+}
+