<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test.js"></script>
<script>
window.jsTestIsAsync = true;

function runTest() {
    output.value = "test value";
    output.appendChild(inserted_div);

    document.getElementById("output").addEventListener('DOMSubtreeModified', function() {
        for(var i=0; i<20; i++) {
            form.appendChild(document.createElement("input"));
        }
    }, false);

    form.reset();
    setTimeout(function() {
        testPassed("Passes if we do not crash.");
        finishJSTest();
    }, 0);
}
</script>
</head>
<body onload="runTest()">
    <div id="inserted_div">foo</div>
    <form id="form" onchange="eventhandler()">
        <input type="text" value="foo">
        <output id="output" oninput="eventhandler()"></output>
        <input type="text" value="foo">
    </form>
</body>
</html>