mirror of https://github.com/tc39/test262.git
31 lines
860 B
JavaScript
31 lines
860 B
JavaScript
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// Copyright (C) 2020 ExE Boss. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-createbuiltinfunction
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description: Promise.all resolve element function property order
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info: |
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Set order: "length", "name"
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---*/
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var resolveElementFunction;
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var thenable = {
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then: function(fulfill) {
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resolveElementFunction = fulfill;
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}
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};
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function NotPromise(executor) {
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executor(function() {}, function() {});
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}
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NotPromise.resolve = function(v) {
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return v;
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};
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Promise.all.call(NotPromise, [thenable]);
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var propNames = Object.getOwnPropertyNames(resolveElementFunction);
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var lengthIndex = propNames.indexOf("length");
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var nameIndex = propNames.indexOf("name");
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assert(lengthIndex >= 0 && nameIndex === lengthIndex + 1,
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"The `length` property comes before the `name` property on built-in functions");
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