js/src/tests/test262/built-ins/String/prototype/concat/S15.5.4.6_A1_T5.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

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

/*---
info: String.prototype.concat([,[...]])
es5id: 15.5.4.6_A1_T5
description: >
    Call concat([,[...]]) function with null argument of function
    object
---*/

//////////////////////////////////////////////////////////////////////////////
//CHECK#1
//since ToString(null) evaluates to "null" concat(null) evaluates to concat("null")
if (function() {
    return "lego"
  }().concat(null) !== "legonull") {
  throw new Test262Error('#1: function(){return "lego"}().concat(null) === "legonull". Actual: ' + function() {
    return "lego"
  }().concat(null));
}
//
//////////////////////////////////////////////////////////////////////////////

reportCompare(0, 0);