michael@0: // Copyright 2009 the Sputnik authors.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * Operator ++x returns ToNumber(x) + 1
michael@0:  *
michael@0:  * @path ch11/11.4/11.4.4/S11.4.4_A4_T3.js
michael@0:  * @description Type(x) is string primitive or String object
michael@0:  */
michael@0: 
michael@0: //CHECK#1
michael@0: var x = "1";
michael@0: if (++x !== 1 + 1) {
michael@0:   $ERROR('#1: var x = "1"; ++x === 1 + 1. Actual: ' + (++x));
michael@0: }
michael@0: 
michael@0: //CHECK#2
michael@0: var x = "x"; 
michael@0: if (isNaN(++x) !== true) {
michael@0:   $ERROR('#2: var x = "x"; ++x === Not-a-Number. Actual: ' + (++x));
michael@0: }
michael@0: 
michael@0: //CHECK#3
michael@0: var x = new String("-1");
michael@0: if (++x !== -1 + 1) {
michael@0:   $ERROR('#3: var x = new String("-1"); ++x === -1 + 1. Actual: ' + (++x));
michael@0: }
michael@0: