JSTests/test262/test/language/expressions/postfix-decrement/S11.3.2_A4_T3.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: Operator x-- returns ToNumber(x)
es5id: 11.3.2_A4_T3
description: Type(x) is string primitive or String object
---*/

//CHECK#1
var x = "1"; 
var y = x--;
if (y !== 1) {
  $ERROR('#1: var x = "1"; var y = x--; y === 1. Actual: ' + (y));
}

//CHECK#2
var x = "x";
var y = x--;
if (isNaN(y) !== true) {
  $ERROR('#2: var x = "x"; var y = x--; y === Not-a-Number. Actual: ' + (y));
}

//CHECK#3
var x = new String("-1");
var y = x--;
if (y !== -1) {
  $ERROR('#3: var x = new String("-1"); var y = x--; y === -1. Actual: ' + (y));
}