js/src/tests/test262/built-ins/Object/preventExtensions/symbol-object-contains-symbol-properties-non-strict.js


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// Copyright (C) 2013 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 19.4
description: >
    Object.preventExtensions(obj) where obj contains symbol properties.
flags: [noStrict]
features: [Symbol]
---*/
var symA = Symbol("A");
var symB = Symbol("B");
var obj = {};
obj[symA] = 1;
Object.preventExtensions(obj);
obj[symA] = 2;
obj[symB] = 1;

assert.sameValue(obj[symA], 2, "The value of `obj[symA]` is `2`");
assert.sameValue(delete obj[symA], true, "`delete obj[symA]` is `true`");
assert.sameValue(obj[symB], undefined, "The value of `obj[symB]` is `undefined`");

reportCompare(0, 0);