JSTests/test262/test/built-ins/Promise/allSettled/reject-element-function-name.js

// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-promise.allsettled-reject-element-functions
description: The `name` property of Promise.allSettled Reject Element functions
info: |
  A promise resolve function is an anonymous built-in function.

  17 ECMAScript Standard Built-in Objects:
    Every built-in function object, including constructors, has a `name`
    property whose value is a String. Functions that are identified as
    anonymous functions use the empty string as the value of the `name`
    property.
    Unless otherwise specified, the `name` property of a built-in function
    object has the attributes { [[Writable]]: *false*, [[Enumerable]]: *false*,
    [[Configurable]]: *true* }.
includes: [propertyHelper.js]
features: [Promise.allSettled]
---*/

var rejectElementFunction;
var thenable = {
  then(_, reject) {
    rejectElementFunction = reject;
  }
};

function NotPromise(executor) {
  executor(function() {}, function() {});
}
NotPromise.resolve = function(v) {
  return v;
};
Promise.allSettled.call(NotPromise, [thenable]);

verifyProperty(rejectElementFunction, "name", {
  value: "", writable: false, enumerable: false, configurable: true
});