CSSAnimation-playState.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-animations/CSSAnimation-playState.tentative.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>CSSAnimation.playState</title>

<!-- TODO: Add a more specific link for this once it is specified. -->

<link rel="help" href="https://drafts.csswg.org/css-animations-2/#cssanimation">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="support/testcommon.js"></script>

<style>

@keyframes anim { }

</style>

<div id="log"></div>

<script>

'use strict';

test(t => {

  const div = addDiv(t, { 'style': 'animation: anim 100s' });

  const animation = div.getAnimations()[0];

  assert_true(animation.pending);

  assert_equals(animation.playState, 'running');

  assert_equals(animation.startTime, null);

}, 'A new CSS animation is initially play-pending');

test(t => {

  const div = addDiv(t, { 'style': 'animation: anim 1000s paused' });

  const animation = div.getAnimations()[0];

  assert_equals(animation.playState, 'paused');

}, 'Animation returns correct playState when paused');

test(t => {

  const div = addDiv(t, { 'style': 'animation: anim 1000s' });

  const animation = div.getAnimations()[0];

  animation.pause();

  assert_equals(animation.playState, 'paused');

}, 'Animation.playState updates when paused by script');

test(t => {

  const div = addDiv(t, { 'style': 'animation: anim 1000s paused' });

  const animation = div.getAnimations()[0];

  div.style.animationPlayState = 'running';

  // This test also checks that calling playState flushes style

  assert_equals(animation.playState, 'running',

                'Animation.playState reports running after updating'

                + ' animation-play-state (got: ' + animation.playState + ')');

}, 'Animation.playState updates when resumed by setting style');

test(t => {

  const div = addDiv(t, { 'style': 'animation: anim 1000s' });

  const animation = div.getAnimations()[0];

  animation.cancel();

  assert_equals(animation.playState, 'idle');

}, 'Animation returns correct playState when canceled');

</script>