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<!DOCTYPE html>
<meta charset=utf-8>
<title>Animation.ready</title>
<link rel="help" href="https://drafts.csswg.org/web-animations/#dom-animation-ready">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';
promise_test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
const originalReadyPromise = animation.ready;
let pauseReadyPromise;
return animation.ready.then(() => {
assert_equals(animation.ready, originalReadyPromise,
'Ready promise is the same object when playing completes');
animation.pause();
assert_not_equals(animation.ready, originalReadyPromise,
'A new ready promise is created when pausing');
pauseReadyPromise = animation.ready;
// Wait for the promise to fulfill since if we abort the pause the ready
// promise object is reused.
return animation.ready;
}).then(() => {
animation.play();
assert_not_equals(animation.ready, pauseReadyPromise,
'A new ready promise is created when playing');
});
}, 'A new ready promise is created when play()/pause() is called');
promise_test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
return animation.ready.then(() => {
const promiseBeforeCallingPlay = animation.ready;
animation.play();
assert_equals(animation.ready, promiseBeforeCallingPlay,
'Ready promise has same object identity after redundant call'
+ ' to play()');
});
}, 'Redundant calls to play() do not generate new ready promise objects');
promise_test(t => {
const div = createDiv(t);
const animation = div.animate(null, 100 * MS_PER_SEC);
return animation.ready.then(resolvedAnimation => {
assert_equals(resolvedAnimation, animation,
'Object identity of Animation passed to Promise callback'
+ ' matches the Animation object owning the Promise');
});
}, 'The ready promise is fulfilled with its Animation');
promise_test(async t => {
const animation = createDiv(t).animate(null, 100 * MS_PER_SEC);
// Ensure the ready promise is created
const ready = animation.ready;
window.addEventListener(
'unhandledrejection',
t.unreached_func('Should not get an unhandled rejection')
);
animation.cancel();
// Wait a moment to allow a chance for the event to be dispatched.
await waitForAnimationFrames(2);
}, 'The ready promise does not report an unhandledrejection when rejected');
</script>
</body>
|
