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101 lines
3.1 KiB
JavaScript
101 lines
3.1 KiB
JavaScript
// Copyright (C) 2020 Rick Waldron. 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-promise.any
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description: >
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Cannot tamper remainingElementsCount when two Promise.any Reject Element Function are called in succession.
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info: |
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Let result be PerformPromiseAny(iteratorRecord, C, promiseCapability).
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Runtime Semantics: PerformPromiseAny
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...
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Let remainingElementsCount be a new Record { [[value]]: 1 }.
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...
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8.d ...
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ii. Set remainingElementsCount.[[value]] to remainingElementsCount.[[value]] − 1.
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iii. If remainingElementsCount.[[value]] is 0,
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1. Let error be a newly created AggregateError object.
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2. Perform ! DefinePropertyOrThrow(error, "errors", Property Descriptor { [[Configurable]]: true, [[Enumerable]]: false, [[Writable]]: true, [[Value]]: errors }).
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3. Return ThrowCompletion(error).
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...
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Promise.any Reject Element Functions
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...
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Let alreadyCalled be the value of F's [[AlreadyCalled]] internal slot.
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If alreadyCalled.[[value]] is true, return undefined.
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Set alreadyCalled.[[value]] to true.
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...
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features: [Promise.any, arrow-function]
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---*/
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let callCount = 0;
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let errorArray;
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function Constructor(executor) {
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function reject(error) {
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callCount += 1;
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errorArray = error.errors;
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assert(Array.isArray(error.errors), "error is array");
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assert.sameValue(error.errors.length, 3, "error.length");
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assert.sameValue(error.errors[0], "p1-rejection", "error.errors[0] === 'p1-rejection'");
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assert.sameValue(error.errors[1], "p2-rejection", "error.errors[1] === 'p2-rejection'");
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assert.sameValue(error.errors[2], "p3-rejection", "error.errors[2] === 'p3-rejection'");
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assert(error instanceof AggregateError, "error instanceof AggregateError");
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}
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executor(Test262Error.thrower, reject);
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}
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Constructor.resolve = function(v) {
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return v;
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};
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let p1OnRejected;
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let p1 = {
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then(onResolved, onRejected) {
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p1OnRejected = onRejected;
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}
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};
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let p2 = {
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then(onResolved, onRejected) {
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p1OnRejected("p1-rejection");
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onRejected("p2-rejection");
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}
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};
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let p3 = {
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then(onResolved, onRejected) {
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onRejected("p3-rejection");
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}
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};
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assert.sameValue(callCount, 0, "callCount before call to any()");
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Promise.any.call(Constructor, [p1, p2, p3]);
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assert.sameValue(callCount, 1, "callCount after call to any()");
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assert.sameValue(errorArray[0], "p1-rejection", "errorArray[0] === 'p1-rejection'");
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assert.sameValue(errorArray[1], "p2-rejection", "errorArray[1] === 'p2-rejection'");
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assert.sameValue(errorArray[2], "p3-rejection", "errorArray[2] === 'p3-rejection'");
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p1OnRejected("unexpectedonRejectedValue");
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assert.sameValue(callCount, 1, "callCount after call to p1OnRejected()");
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assert.sameValue(
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errorArray[0],
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"p1-rejection",
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"errorArray[0] === 'p1-rejection', after call to p1OnRejected(...)"
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);
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assert.sameValue(
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errorArray[1],
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"p2-rejection",
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"errorArray[1] === 'p2-rejection', after call to p1OnRejected(...)"
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);
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assert.sameValue(
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errorArray[2],
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"p3-rejection",
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"errorArray[2] === 'p3-rejection', after call to p1OnRejected(...)"
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);
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