40 lines
845 B
HTML
40 lines
845 B
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script src="../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script>
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description("Ensure PerformanceObserver callback fires even if the JS does not keep the PerformanceObserver object alive.");
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window.jsTestIsAsync = true;
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let receivedEntries = [];
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let observer = new PerformanceObserver((list) => {
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for (let mark of list.getEntries())
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receivedEntries.push(mark.name);
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if (receivedEntries.length == 3) {
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for (let name of receivedEntries)
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testPassed(name);
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finishJSTest();
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}
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});
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observer.observe({entryTypes: ["mark"]});
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observer = null;
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gc();
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// ---
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performance.mark("mark1");
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setTimeout(() => {
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gc();
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performance.mark("mark2");
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performance.mark("mark3");
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}, 50);
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</script>
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<script src="../resources/js-test-post.js"></script>
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</body>
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</html>
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