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// |reftest| async
// Copyright 2018 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
author: Maya Lekova <mslekova@chromium.org>
esid: await
description: >
This test demonstrates that "then" on a non-native promise
will still get called.
flags: [async]
features: [async-functions]
includes: [compareArray.js]
---*/
let thenCallCount = 0;
const actual = [];
const expected = [
'Promise: 1',
'Promise: 2',
'Await: 1',
'Promise: 3',
'Promise: 4',
'Await: 2',
];
const patched = {};
patched.then = function(fulfill, reject) {
thenCallCount++;
fulfill(thenCallCount);
};
async function trigger() {
actual.push('Await: ' + await patched);
actual.push('Await: ' + await patched);
}
function checkAssertions() {
assert.compareArray(actual, expected,
'Async/await and promises should be interleaved');
assert.sameValue(thenCallCount, 2,
'"then" on non-native promises should be called.');
}
trigger().then(checkAssertions).then($DONE, $DONE);
new Promise(function (resolve) {
actual.push('Promise: 1');
resolve();
}).then(function () {
actual.push('Promise: 2');
}).then(function () {
actual.push('Promise: 3');
}).then(function () {
actual.push('Promise: 4');
});
|
