| // 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`"); |
