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| -rw-r--r-- | testing/web-platform/tests/longtask-timing/spin-eventloop-not-longtask.html | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/testing/web-platform/tests/longtask-timing/spin-eventloop-not-longtask.html b/testing/web-platform/tests/longtask-timing/spin-eventloop-not-longtask.html new file mode 100644 index 0000000000..9c83b14e31 --- /dev/null +++ b/testing/web-platform/tests/longtask-timing/spin-eventloop-not-longtask.html @@ -0,0 +1,25 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>LongTask Timing: synchronous XHR</title> +<body> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/utils.js"></script> +<link rel="stylesheet" href="/resource-timing/resources/delay-css.py?delay=1000" /> +<h1>Long Task: Spin event loop</h1> +<div id="log"></div> +<script> +setup(() => assert_implements(window.PerformanceLongTaskTiming, 'Longtasks are not supported.')); + +promise_test(async t => { + const didReceiveLongTask = false; + new PerformanceObserver(() => { + didReceiveLongTask = true; + }).observe({entryTypes: ['longtask']}); + + await new Promise(resolve => window.addEventListener('load', resolve)); + assert_false(didReceiveLongTask); +}, 'Waiting for load event (spinning an event loop), is not a longtask'); +</script> +</body> |