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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /long-animation-frame/tentative/loaf-promise-scheduled-render.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Long Animation Frame Timing: promise resolver during scheduled render</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
function infinite_render() {
requestAnimationFrame(infinite_render);
}
function generate_loaf_and_wait_for_entry() {
return new Promise(resolve => {
const reference_time = performance.now();
new PerformanceObserver((entries, observer) => {
const entry = entries.getEntries().find(e =>
(e.startTime < reference_time)
&& (e.startTime + e.duration > reference_time));
if (entry) {
observer.disconnect();
resolve(entry);
}
}).observe({type: "long-animation-frame"});
while (performance.now() < reference_time + 100) {
}
});
}
promise_test(async t => {
infinite_render();
const response = await fetch("/common/dummy.xml");
await response.text();
const entry = await generate_loaf_and_wait_for_entry();
assert_equals(entry.scripts.length, 1);
});
</script>
<body>
</body>