mozilla-central/testing/web-platform/tests/web-animations/interfaces/Animation/constructor.html

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<!DOCTYPE html>
<meta charset=utf-8>
<title>Animation constructor</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<body>
<div id="log"></div>
<div id="target"></div>
<script>
'use strict';
const gTarget = document.getElementById('target');
function createEffect() {
return new KeyframeEffect(gTarget, { opacity: [0, 1] });
}
function createNull() {
return null;
}
const gTestArguments = [
{
createEffect: createNull,
timeline: null,
expectedTimeline: null,
expectedTimelineDescription: 'null',
description: 'with null effect and null timeline'
},
{
createEffect: createNull,
timeline: document.timeline,
expectedTimeline: document.timeline,
expectedTimelineDescription: 'document.timeline',
description: 'with null effect and non-null timeline'
},
{
createEffect: createNull,
expectedTimeline: document.timeline,
expectedTimelineDescription: 'document.timeline',
description: 'with null effect and no timeline parameter'
},
{
createEffect: createEffect,
timeline: null,
expectedTimeline: null,
expectedTimelineDescription: 'null',
description: 'with non-null effect and null timeline'
},
{
createEffect: createEffect,
timeline: document.timeline,
expectedTimeline: document.timeline,
expectedTimelineDescription: 'document.timeline',
description: 'with non-null effect and non-null timeline'
},
{
createEffect: createEffect,
expectedTimeline: document.timeline,
expectedTimelineDescription: 'document.timeline',
description: 'with non-null effect and no timeline parameter'
},
];
for (const args of gTestArguments) {
test(t => {
const effect = args.createEffect();
const animation = new Animation(effect, args.timeline);
assert_not_equals(animation, null,
'An animation sohuld be created');
assert_equals(animation.effect, effect,
'Animation returns the same effect passed to ' +
'the constructor');
assert_equals(animation.timeline, args.expectedTimeline,
'Animation timeline should be ' + args.expectedTimelineDescription);
assert_equals(animation.playState, 'idle',
'Animation.playState should be initially \'idle\'');
}, 'Animation can be constructed ' + args.description);
}
test(t => {
const effect = new KeyframeEffect(null,
{ left: ['10px', '20px'] },
{ duration: 10000, fill: 'forwards' });
const anim = new Animation(effect, document.timeline);
anim.pause();
assert_equals(effect.getComputedTiming().progress, 0.0);
anim.currentTime += 5000;
assert_equals(effect.getComputedTiming().progress, 0.5);
anim.finish();
assert_equals(effect.getComputedTiming().progress, 1.0);
}, 'Animation constructed by an effect with null target runs normally');
async_test(t => {
const iframe = document.createElement('iframe');
iframe.addEventListener('load', t.step_func(() => {
const div = createDiv(t, iframe.contentDocument);
const effect = new KeyframeEffect(div, null, 10000);
const anim = new Animation(effect);
assert_equals(anim.timeline, document.timeline);
iframe.remove();
t.done();
}));
document.body.appendChild(iframe);
}, 'Animation constructed with a keyframe that target element is in iframe');
test(t => {
const div = createDiv(t);
const effect = new KeyframeEffect(div, { opacity: [0, 1]}, 10000);
const anim1 = new Animation(effect);
anim1.play();
const anim2 = new Animation(effect);
anim2.play();
assert_equals(anim1.effect, null, 'Effect is reset on first animation');
assert_equals(anim1.playState, 'finished',
'Resetting the affect does not cancel the animation');
}, 'Animation created with an affect associated with another animation.');
</script>
</body>