summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/language/expressions/delete/11.4.4-4.a-3-s-strict.js
blob: 8a25d34be6b0b78ad9377130cd72359d892ec2ec (plain)
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
'use strict';
// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: |
    This test is actually testing the [[Delete]] internal method (8.12.8). Since the
    language provides no way to directly exercise [[Delete]], the tests are placed here.
esid: sec-delete-operator-runtime-semantics-evaluation
description: >
    delete operator throws TypeError when deleting a non-configurable
    data property in strict mode
flags: [onlyStrict]
---*/

var o = {};
var desc = {
  value: 1,
}; // all other attributes default to false
Object.defineProperty(o, 'foo', desc);

// Now, deleting o.foo should throw TypeError because [[Configurable]] on foo is false.
assert.throws(TypeError, function() {
  delete o.foo;
});

reportCompare(0, 0);