mirror of https://github.com/tc39/test262.git
44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
// Copyright (C) 2019 Leo Balter. 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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description: >
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Error thrown when invoking the instance's `then` method (closing iterator)
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esid: sec-promise.allsettled
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info: |
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6. Let result be PerformPromiseAllSettled(iteratorRecord, C, promiseCapability).
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7. If result is an abrupt completion, then
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a. If iteratorRecord.[[Done]] is false, set result to IteratorClose(iteratorRecord, result).
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b. IfAbruptRejectPromise(result, promiseCapability).
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Runtime Semantics: PerformPromiseAllSettled
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z. Perform ? Invoke(nextPromise, "then", « resolveElement, rejectElement »).
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features: [Promise.allSettled, Symbol.iterator]
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---*/
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var promise = new Promise(function() {});
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var returnCount = 0;
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var iter = {};
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iter[Symbol.iterator] = function() {
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return {
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next() {
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return {
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done: false,
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value: promise
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};
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},
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return() {
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returnCount += 1;
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return {};
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}
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};
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};
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promise.then = function() {
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throw new Test262Error();
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};
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Promise.allSettled(iter);
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assert.sameValue(returnCount, 1);
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