| <!DOCTYPE html> |
| <link rel="help" src="https://drafts.csswg.org/css-animations-2/#animation-timeline"> |
| <link rel="help" src="https://drafts.csswg.org/web-animations/#playing-an-animation-section"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/web-animations/testcommon.js"></script> |
| <style> |
| @keyframes expand { |
| from { width: 100px; } |
| to { width: 200px; } |
| } |
| |
| .test { |
| width: 0px; |
| animation-name: expand; |
| animation-duration: 1s; |
| } |
| |
| #element_timeline_none { |
| animation-timeline: none; |
| } |
| #element_unknown_timeline { |
| animation-timeline: unknown_timeline; |
| } |
| |
| </style> |
| <div class=test id=element_timeline_none></div> |
| <div class=test id=element_unknown_timeline></div> |
| <script> |
| promise_test(async (t) => { |
| assert_equals(getComputedStyle(element_timeline_none).width, '100px'); |
| await waitForAnimationFrames(3); |
| assert_equals(getComputedStyle(element_timeline_none).width, '100px'); |
| }, 'Animation with animation-timeline:none holds current time at zero'); |
| |
| promise_test(async (t) => { |
| assert_equals(getComputedStyle(element_unknown_timeline).width, '100px'); |
| await waitForAnimationFrames(3); |
| assert_equals(getComputedStyle(element_unknown_timeline).width, '100px'); |
| }, 'Animation with unknown timeline name holds current time at zero'); |
| </script> |
