LayoutTests/svg/animations/smil-leak-elements.svg

<svg id="svg" xmlns="http://www.w3.org/2000/svg" onload="load()">
<g id="g"/>
<text x="50" y="50" id="log"/>
<script id="script">
<![CDATA[

var g = document.getElementById("g");

function log(message) {
    var logDiv = document.getElementById('log');
    logDiv.appendChild(document.createTextNode(message));
}

function createAnimatedRect() {
    var rect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
    rect.setAttribute("width", 10);
    rect.setAttribute("height", 10);

    var anim = document.createElementNS("http://www.w3.org/2000/svg", "animate");
    anim.setAttribute("attributeType", "XML");
    anim.setAttribute("attributeName", "x");
    anim.setAttribute("from", "100");
    anim.setAttribute("to", "0");
    anim.setAttribute("begin", "0s");
    anim.setAttribute("dur", "10.0s");
    anim.setAttribute("repeatCount", 1);

    rect.appendChild(anim);

    return rect;
}

function cleanup() {
    // Collect garbage before recording starting live node count, in case there are live elements from previous tests.
    // FIXME: Unclear why two calls to collect() are required, see crbug.com/307614
    GCController.collect();
    GCController.collect();
    var originalLiveElements = internals.numberOfLiveNodes();

    while (g.hasChildNodes())
        g.removeChild(g.lastChild);

    GCController.collect();

    var liveDelta = originalLiveElements - internals.numberOfLiveNodes() - 200;
    if (liveDelta == 0)
        log("PASS");
    else
        log("FAIL: " + liveDelta + " extra live node(s)");

    testRunner.notifyDone();
}

function startTest() {
    for (var i = 0; i < 100; i++)
        g.appendChild(createAnimatedRect());

    setTimeout(cleanup, 0);
}

function load() {
    if (window.testRunner && window.GCController && window.internals) {
        testRunner.dumpAsText();
        testRunner.waitUntilDone();
    } else {
        log("This test only works when run with the testRunner, GCController, and internals available.");
        return;
    }

    setTimeout(startTest, 0);
}
]]>
</script>
</svg>