| // 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] | |
| ---*/ | |
| 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`"); |