| // Copyright (C) 2013 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 19.1.2.4 |
| description: > |
| Symbol used as property for property definition |
| flags: [noStrict] |
| features: [Symbol] |
| ---*/ |
| var sym = Symbol(); |
| var obj = {}; |
| |
| |
| Object.defineProperty(obj, sym, { |
| value: 1, |
| }); |
| |
| assert.sameValue(sym in obj, true, "The result of `sym in obj` is `true`"); |
| assert.sameValue( |
| Object.hasOwnProperty.call(obj, sym), |
| true, |
| "`Object.hasOwnProperty.call(obj, sym)` returns `true`" |
| ); |
| |
| var desc = Object.getOwnPropertyDescriptor(obj, sym); |
| |
| assert.sameValue(desc.value, 1, "The value of `desc.value` is `1`"); |
| assert.sameValue(desc.configurable, false, "The value of `desc.configurable` is `false`"); |
| assert.sameValue(desc.writable, false, "The value of `desc.writable` is `false`"); |
| assert.sameValue(desc.enumerable, false, "The value of `desc.enumerable` is `false`"); |
| assert.sameValue( |
| Object.prototype.propertyIsEnumerable.call(obj, sym), |
| false, |
| "`Object.prototype.propertyIsEnumerable.call(obj, sym)` returns `false`" |
| ); |
| |
| assert.sameValue(delete obj[sym], false, "The result of `delete obj[sym]` is `false`"); |
| |
| assert.notSameValue( |
| Object.getOwnPropertyDescriptor(obj, sym), |
| undefined, |
| "`Object.getOwnPropertyDescriptor(obj, sym)` does not return `undefined`" |
| ); |
| |
| obj[sym] = 2; |
| |
| assert.sameValue(obj[sym], 1, "The value of `obj[sym]` is `1`"); |