-
Notifications
You must be signed in to change notification settings - Fork 54
/
constructor.html
43 lines (35 loc) · 1.54 KB
/
constructor.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
<!DOCTYPE html>
<meta charset=utf-8>
<title>DocumentTimeline constructor tests</title>
<link rel="help" href="https://drafts.csswg.org/web-animations/#the-documenttimeline-interface">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<script src="../../resources/timing-override.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';
test(t => {
const timeline = new DocumentTimeline();
assert_times_equal(timeline.currentTime, document.timeline.currentTime);
}, 'An origin time of zero is used when none is supplied');
test(t => {
const timeline = new DocumentTimeline({ originTime: 0 });
assert_times_equal(timeline.currentTime, document.timeline.currentTime);
}, 'A zero origin time produces a document timeline with a current time ' +
'identical to the default document timeline');
test(t => {
const timeline = new DocumentTimeline({ originTime: 10 * MS_PER_SEC });
assert_times_equal(timeline.currentTime,
(document.timeline.currentTime - 10 * MS_PER_SEC));
}, 'A positive origin time makes the document timeline\'s current time lag ' +
'behind the default document timeline');
test(t => {
const timeline = new DocumentTimeline({ originTime: -10 * MS_PER_SEC });
assert_times_equal(timeline.currentTime,
(document.timeline.currentTime + 10 * MS_PER_SEC));
}, 'A negative origin time makes the document timeline\'s current time run ' +
'ahead of the default document timeline');
</script>
</body>