mirror of https://github.com/tc39/test262.git
46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// Copyright (C) 2022 Igalia, S.L. 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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The 'asyncTest' helper when called with async flag always returns a promise that resolves to undefined.
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flags: [async]
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includes: [asyncHelpers.js]
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---*/
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var realDone = $DONE;
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var doneCalls = 0;
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globalThis.$DONE = function () {
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doneCalls++;
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};
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async function assertPromiseUndefined(returnedPromise) {
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assert(
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returnedPromise instanceof Promise,
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"returned value should be a Promise"
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);
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assert.sameValue(
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await returnedPromise,
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undefined,
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"returned Promise should resolve to undefined"
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);
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}
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(async function () {
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await assertPromiseUndefined(asyncTest({}));
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await assertPromiseUndefined(
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asyncTest(function () {
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return "non-thenable";
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})
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);
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await assertPromiseUndefined(
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asyncTest(function () {
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return Promise.resolve(true);
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})
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);
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await assertPromiseUndefined(
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asyncTest(function () {
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return Promise.reject(new Test262Error("oh no"));
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})
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);
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assert.sameValue(doneCalls, 4, "asyncTest must call $DONE");
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})().then(realDone, realDone);
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