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c44cee291a
The `compareArray` utility function returns a boolean value describing whether or not the input arrays are equivalent--it does not throw an exception when invoked with non-equivalent arrays. Prior to this commit, however, two tests invoked `compareArray` without inspecting its return value, so it had no impact on the result of the test. Update the tests to fail when the "expected" and "actual" arrays are not equivalent.
52 lines
1.7 KiB
JavaScript
52 lines
1.7 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.race
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description: Resolution ticks are set in a predictable sequence
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info: |
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PerformPromiseRace
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Repeat,
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Let next be IteratorStep(iteratorRecord).
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If next is an abrupt completion, set iteratorRecord.[[Done]] to true.
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ReturnIfAbrupt(next).
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If next is false, then
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Set iteratorRecord.[[Done]] to true.
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Return resultCapability.[[Promise]].
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Let nextValue be IteratorValue(next).
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If nextValue is an abrupt completion, set iteratorRecord.[[Done]] to true.
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ReturnIfAbrupt(nextValue).
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Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
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Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], resultCapability.[[Reject]] »).
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flags: [async]
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includes: [compareArray.js,promiseHelper.js]
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---*/
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let a = new Promise(resolve => resolve('a'));
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let b = new Promise(resolve => resolve('b'));
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let sequence = [1];
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Promise.all([
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a.then(() => {
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sequence.push(3);
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assert.sameValue(sequence.length, 3);
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return checkSequence(sequence, 'Expected to be called first.');
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}),
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Promise.race([a, b]).then(() => {
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sequence.push(5);
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assert.sameValue(sequence.length, 5);
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return checkSequence(sequence, 'Expected to be called third.');
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}),
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b.then(() => {
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sequence.push(4);
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assert.sameValue(sequence.length, 4);
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return checkSequence(sequence, 'Expected to be called second.');
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})
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]).then(result => {
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assert.compareArray(result, [true, true, true]);
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assert.sameValue(sequence.length, 5);
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checkSequence(sequence)
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}).then($DONE, $DONE);
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sequence.push(2);
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