| <!DOCTYPE html> |
| <head> |
| <title>Performance Paint Timing Test: FCP due to loaded video frame</title> |
| </head> |
| <body> |
| <script src="../resources/utils.js"></script> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <video id="video" autoplay></video> |
| <script> |
| promise_test(async t => { |
| assert_precondition(window.PerformancePaintTiming, "Paint Timing isn't supported."); |
| await new Promise(r => window.addEventListener('load', r)); |
| await assertNoFirstContentfulPaint(t); |
| // Set actual video content to trigger FCP. |
| const video = document.getElementById('video'); |
| video.setAttribute('src', '/media/test.mp4'); |
| await new Promise(resolve => { |
| video.oncanplay = resolve; |
| }); |
| await assertFirstContentfulPaint(t); |
| }, 'Video should become contentful when first frame is loaded'); |
| </script> |
| </body> |
| </html> |