From c370276c6533599614252a3ea6937332ff64ca31 Mon Sep 17 00:00:00 2001 From: Alexey Shvayka Date: Mon, 2 Mar 2020 22:28:14 +0200 Subject: [PATCH] Add Object.getOwnPropertySymbols test --- .../order-after-define-property.js | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 test/built-ins/Object/getOwnPropertySymbols/order-after-define-property.js diff --git a/test/built-ins/Object/getOwnPropertySymbols/order-after-define-property.js b/test/built-ins/Object/getOwnPropertySymbols/order-after-define-property.js new file mode 100644 index 0000000000..d94460dcf6 --- /dev/null +++ b/test/built-ins/Object/getOwnPropertySymbols/order-after-define-property.js @@ -0,0 +1,46 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-object.getownpropertysymbols +description: > + Property names are returned in ascending chronological order of creation + that is unaffected by [[DefineOwnProperty]]. +info: | + Object.getOwnPropertySymbols ( O ) + + 1. Return ? GetOwnPropertyKeys(O, Symbol). + + GetOwnPropertyKeys ( O, type ) + + 1. Let obj be ? ToObject(O). + 2. Let keys be ? obj.[[OwnPropertyKeys]](). + [...] + + OrdinaryOwnPropertyKeys ( O ) + + [...] + 4. For each own property key P of O that is a Symbol, in ascending + chronological order of property creation, do + a. Add P as the last element of keys. + 5. Return keys. +features: [Symbol] +includes: [compareArray.js] +---*/ + +var symA = Symbol("a"); +var symB = Symbol("b"); + +var obj = {}; +obj[symA] = 1; +obj[symB] = 2; +Object.defineProperty(obj, symA, { + get: function() {}, +}); +assert.compareArray(Object.getOwnPropertySymbols(obj), [symA, symB]); + +var arr = []; +arr[symA] = 1; +arr[symB] = 2; +Object.defineProperty(arr, symA, {writable: false}); +assert.compareArray(Object.getOwnPropertySymbols(arr), [symA, symB]);