<!DOCTYPE html>

<html>
<head>
    <style>
        .popover {
            position: absolute;
            z-index: 1;
            top: 100px;
            left: 100px;
            width: 300px;
            height: 200px;
            border: 1px solid black;
        }
        
        .container {
            position: absolute;
            width: 100%;
            height: 100%;
        }
        
    </style>

    <script src="../../../resources/js-test-pre.js" type="text/javascript" charset="utf-8"></script>
    <script>
        if (window.testRunner) {
            testRunner.waitUntilDone();
            testRunner.dumpAsText();
        }
        
        var popover;
        function createPopover()
        {
            popover = document.createElement('div');
            popover.className = 'popover';
            var container = document.createElement('div');
            container.className = 'container';
            popover.appendChild(container);
        }
        
        function doTest()
        {
            createPopover();
            document.body.appendChild(popover);
            popover.addEventListener("mousewheel", function() { }, true);
            popover.addEventListener("mousewheel", function() { }, true);
            window.setTimeout(dismiss, 0);
        }

        var count = 0;
        function dismiss()
        {
            document.body.removeChild(popover);
            gc();
            
            document.getElementById('count').textContent = ++count;
            if (count > 3) {
                if (window.testRunner)
                    testRunner.notifyDone();
                return;
            }
            doTest();
        }
        
        window.addEventListener('load', doTest, false);
    </script>
</head>
<body>
    <p>Test that elements with multiple wheel event handlers are removed from the document's event handler set when the element is destroyed. Test passes if it does not crash.</p>
<p>Iterations: <span id="count"></span></p>
</body>
</html>