| // Copyright (C) 2021 Jamie Kyle. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-object.hasown |
| description: Object.hasOwn with symbol and valueOf conversion |
| info: | |
| Object.hasOwn ( _O_, _P_ ) |
| |
| 1. Let _obj_ be ? ToObject(_O_). |
| 2. Let _key_ be ? ToPropertyKey(_P_). |
| ... |
| author: Jamie Kyle |
| features: [Symbol, Object.hasOwn] |
| ---*/ |
| |
| var obj = {}; |
| var sym = Symbol(); |
| |
| var callCount = 0; |
| var wrapper = { |
| valueOf: function() { |
| callCount += 1; |
| return sym; |
| }, |
| toString: null |
| }; |
| |
| obj[sym] = 0; |
| |
| assert.sameValue( |
| Object.hasOwn(obj, wrapper), |
| true, |
| "Returns true if symbol own property found" |
| ); |
| |
| assert.sameValue(callCount, 1, "valueOf method called exactly once"); |
