| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>raf time in dedicated workers</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <script> |
| async function waitForMessage(worker) { |
| return new Promise(resolve => { |
| worker.onmessage = event => resolve(event); |
| }); |
| } |
| |
| promise_test(t => { |
| const worker = new Worker('support/worker-request-animation-frame.js'); |
| const message = waitForMessage(worker); |
| worker.postMessage(''); |
| message.then((event) => { |
| const raf_time = event.data; |
| assert_true(performance.now() >= raf_time, |
| 'raf time cannot exceed time of page load'); |
| }); |
| return message; |
| }, 'requestAnimationTime reports frame time relative to worker load'); |
| </script> |
