48 lines
1.3 KiB
HTML
48 lines
1.3 KiB
HTML
<!DOCTYPE html><!-- webkit-test-runner [ ResizeObserverEnabled=true ] -->
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<html>
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<body>
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<pre id="log">This tests observing an element with an ResizeObserver and removing the element from the document.
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The element should become eligible for GC at some point.
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</pre>
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<script src="../resources/gc.js"></script>
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<script>
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let initialNodeCount;
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function runTest()
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{
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if (!window.testRunner || !window.internals) {
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log.textContent += 'FAIL - This test requires internals';
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return;
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}
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testRunner.dumpAsText();
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testRunner.waitUntilDone();
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initialNodeCount = internals.referencingNodeCount(document);
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const resizeObserverCount = 100;
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for (let i = 0; i < resizeObserverCount; ++i)
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createResizeObserver();
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requestAnimationFrame(() => {
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gc();
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setTimeout(() => {
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gc();
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log.textContent += internals.referencingNodeCount(document) < initialNodeCount + resizeObserverCount * 0.95 ? 'PASS' : 'FAIL - Less than 20% of nodes were collected.'
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testRunner.notifyDone();
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}, 0);
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});
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}
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function createResizeObserver()
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{
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const element = document.createElement('div');
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const resizeObserver = new ResizeObserver(() => { }).observe(element);
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}
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onload = runTest;
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</script>
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</body>
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</html>
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