js/src/tests/test262/ch08/8.6/8.6.2/S8.6.2_A8.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/test262/ch08/8.6/8.6.2/S8.6.2_A8.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,22 @@
     1.4 +// Copyright 2011 Google Inc.  All rights reserved.
     1.5 +// This code is governed by the BSD license found in the LICENSE file.
     1.6 +
     1.7 +/**
     1.8 + * @path ch08/8.6/8.6.2/S8.6.2_A8.js
     1.9 + * @description It should not be possible to change the [[Prototype]]
    1.10 + * of a non-extensible object
    1.11 + */
    1.12 +
    1.13 +var x = Object.preventExtensions({});
    1.14 +var y = {};
    1.15 +try {
    1.16 +  x.__proto__ = y;
    1.17 +} catch (err) {
    1.18 +  // As far as this test is concerned, we allow the above assignment
    1.19 +  // to fail. This failure does violate the spec and should probably
    1.20 +  // be tested separately.
    1.21 +}
    1.22 +if (Object.getPrototypeOf(x) !== Object.prototype) {
    1.23 +  $ERROR("Prototype of non-extensible object mutated");
    1.24 +}
    1.25 +

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