test/built-ins/Object/prototype/toString/S15.2.4.2_A1.js


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

/*---
info: |
    When the toString method is called, the following steps are taken:
    i) Get the [[Class]] property of this object
    ii) Compute a string value by concatenating the three strings "[object ", Result(1), and "]"
    iii) Return Result(2)
es5id: 15.2.4.2_A1
description: >
    Checking the type of Object.prototype.toString and the returned
    result
---*/

//CHECK#1
if (typeof Object.prototype.toString !== "function") {
  $ERROR('#1: toString method defined');
}

//CHECK#2
if (Object.prototype.toString() !== "[object " + "Object" + "]") {
  $ERROR('#2: return a string value by concatenating the three strings "[object ", the [[Class]] property of this object, and "]"');
}

//CHECK#3
if ({}.toString() !== "[object " + "Object" + "]") {
  $ERROR('#3: return a string value by concatenating the three strings "[object ", the [[Class]] property of this object, and "]"');
}