remove-from-document-config-controls-no-crash.html

<!DOCTYPE html>
<html>
<head>
<script src="../resources/js-test.js"></script>
</head>
<body>
<video controls id="v"></video>
<script>
description("Verify that removing a video element from the DOM does not crash.");

window.jsTestIsAsync = true;

if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

function runTest() {
    if (!window.internals) {
        finishJSTest();
        return;
    }
    var video = document.getElementById('v');
    var videoShadow = internals.shadowRoot(video);
    traverse(videoShadow);

    document.body.removeChild(video);
    finishJSTest();
}

function traverse(node) {
    if (!node)
        return;
    if (node.attributes)
        Array.prototype.forEach.call(node.attributes, function (n) { node[n && n.localName] = 2; });
    if (node.childNodes)
        Array.prototype.forEach.call(node.childNodes, traverse);
    if (node.localName == 'input')
        traverse(internals.shadowRoot(node));
}
window.onload = runTest;
</script>
</html>

chromium/third_party/blink/web_tests/media/remove-from-document-config-controls-no-crash.html