callback-invoked.html (743B)
1 <!doctype html> 2 <html> 3 <head> 4 <title>requestAnimationFrame must be triggered once</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <link rel="help" href="https://w3c.github.io/web-performance/specs/RequestAnimationFrame/Overview.html#dom-windowanimationtiming-requestanimationframe"/> 8 </head> 9 <body> 10 <div id="log"></div> 11 <script> 12 async_test(function (t) { 13 assert_false(document.hidden, "document.hidden must exist and be false to run this test properly"); 14 window.requestAnimationFrame(t.step_func_done()); 15 }, "requestAnimationFrame callback is invoked at least once before the timeout"); 16 </script> 17 </body> 18 </html>