1<!DOCTYPE html>
2<script src="testharness/testharness.js"></script>
3<script src="testharness/testharnessreport.js"></script>
4<script src="resources/keyframes-test.js"></script>
5<script>
6test(function() {
7  assertAnimationStyles([
8    {opacity: '0.5', left: '50px'},
9    {opacity: '0', left: '0px', offset: null},
10    {opacity: '0.75', left: '75px', offset: null},
11  ], {
12    0: {opacity: '0.5', left: '50px'},
13    0.25: {opacity: '0.25', left: '25px'},
14    0.5: {opacity: '0', left: '0px'},
15    0.75: {opacity: '0.375', left: '37.5px'},
16    1: {opacity: '0.75', left: '75px'},
17  }, 'case A');
18
19  assertAnimationStyles([
20    {opacity: '0.5', left: '50px', offset: null},
21    {opacity: '0', left: '0px', offset: 0.25},
22    {opacity: '0.75', left: '75px', offset: null},
23  ], {
24    0: {opacity: '0.5', left: '50px'},
25    0.125: {opacity: '0.25', left: '25px'},
26    0.25: {opacity: '0', left: '0px'},
27    0.5: {opacity: '0.25', left: '25px'},
28    0.75: {opacity: '0.5', left: '50px'},
29    1: {opacity: '0.75', left: '75px'},
30  }, 'case B');
31},
32'element.animate() with null offsets specified',
33{
34  help: 'http://dev.w3.org/fxtf/web-animations/#the-keyframe-dictionary',
35  assert: [
36    'element.animate() should start an animation when keyframes are specified with',
37    'null offsets. The behaviour should be identical to not specifying the offsets.',
38  ],
39  author: 'Alan Cutter',
40});
41</script>
42