<!DOCTYPE html>
<meta charset=utf-8>
<title>Animations are retriggered if timeline time changes</title>
<link rel="help" href="http://w3c.github.io/web-animations/#set-the-timeline-of-an-animation">
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="../imported/wpt/web-animations/testcommon.js"></script>

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

<script>

promise_test(function(t) {
  var animation = div.animate([], 10);

  return animation.ready.then(function() {
    animation.timeline = new DocumentTimeline(-5);
    animation.startTime = document.timeline.currentTime;
    assert_times_equal(animation.currentTime, 5);
    assert_equals(animation.playState, "running");

    animation.timeline = new DocumentTimeline(-15);
    animation.startTime = document.timeline.currentTime;
    assert_times_equal(animation.currentTime, 10);
    assert_equals(animation.playState, "finished");

    animation.timeline = new DocumentTimeline(0);
    animation.startTime = document.timeline.currentTime;
    assert_times_equal(animation.currentTime, 0);
    assert_equals(animation.playState, "running");

    animation.timeline = new DocumentTimeline(-5);
    animation.startTime = document.timeline.currentTime;
    assert_times_equal(animation.currentTime, 5);
    assert_equals(animation.playState, "running");
  });
}, 'Animations are retriggered if timeline time changes');

</script>