js/src/tests/test262/built-ins/String/prototype/concat/S15.5.4.6_A1_T8.js


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

// 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_T8
description: >
    Call concat([,[...]]) function with void 0 argument of string
    object
---*/

//////////////////////////////////////////////////////////////////////////////
//CHECK#1
//since ToString(void 0) evaluates to "undefined" concat(void 0) evaluates to concat("undefined")
if (String(42).concat(void 0) !== "42undefined") {
  throw new Test262Error('#1: String(42).concat(void 0) === "42undefined". Actual: ' + String(42).concat(void 0));
}
//
//////////////////////////////////////////////////////////////////////////////

reportCompare(0, 0);