<html>
<head>
<script type="text/javascript">
function test() {
    if (window.testRunner)
        testRunner.dumpAsText();

    document.getElementById("s1").firstChild.nodeValue="SU";
    document.getElementById("s2").firstChild.insertData(0, "CC");
    document.getElementById("s3").firstChild.appendData("ES");
    document.getElementById("s4").firstChild.replaceData(0, 1, "S");
}
</script>
<body onLoad="test()">
<p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=4616">bug 4616</a>:
Setting textNode.nodeValue does not work when nodeValue is whitespace only.</p>
<p>Should say "SUCCESS":</p>
<div id="s1"> </div><div id="s2"> </div><div id="s3"> </div><div id="s4"> </div>
</body>
</html>