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<!DOCTYPE html>
<meta charset=utf-8>
<title>Tests for current time</title>
<link rel="help" href="https://w3c.github.io/web-animations/#current-time">
<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';
test(function(t) {
var animation =
new Animation(new KeyframeEffect(createDiv(t), null, 100 * MS_PER_SEC),
document.timeline);
animation.play();
assert_equals(animation.currentTime, 0,
'Current time returns the hold time set when entering the play-pending ' +
'state');
}, 'The current time returns the hold time when set');
promise_test(function(t) {
var animation =
new Animation(new KeyframeEffect(createDiv(t), null, 100 * MS_PER_SEC),
null);
return animation.ready.then(function() {
assert_equals(animation.currentTime, null);
});
}, 'The current time is unresolved when there is no associated timeline ' +
'(and no hold time is set)');
// FIXME: Test that the current time is unresolved when we have an inactive
// timeline if we find a way of creating an inactive timeline!
test(function(t) {
var animation =
new Animation(new KeyframeEffect(createDiv(t), null, 100 * MS_PER_SEC),
document.timeline);
animation.startTime = null;
assert_equals(animation.currentTime, null);
}, 'The current time is unresolved when the start time is unresolved ' +
'(and no hold time is set)');
promise_test(function(t) {
var animation =
new Animation(new KeyframeEffect(createDiv(t), null, 100 * MS_PER_SEC),
document.timeline);
animation.playbackRate = 2;
animation.startTime = document.timeline.currentTime - 25 * MS_PER_SEC;
var timelineTime = document.timeline.currentTime;
var startTime = animation.startTime;
var playbackRate = animation.playbackRate;
assert_times_equal(animation.currentTime,
(timelineTime - startTime) * playbackRate,
'Animation has a unresolved start time');
}, 'The current time is calculated from the timeline time, start time and ' +
'playback rate');
</script>
</body>
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