test/built-ins/Array/prototype/map/15.4.4.19-4-8.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
26
27
28
29
30
31
32
33

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 15.4.4.19-4-8
description: >
    Array.prototype.map - Side effects produced by step 2 are visible
    when an exception occurs
includes: [runTestCase.js]
---*/

function testcase() {

        var obj = { 0: 11, 1: 12 };

        var accessed = false;

        Object.defineProperty(obj, "length", {
            get: function () {
                accessed = true;
                return 2;
            },
            configurable: true
        });

        try {
            Array.prototype.map.call(obj, null);
            return false;
        } catch (ex) {
            return ex instanceof TypeError && accessed;
        }
    }
runTestCase(testcase);