<html>
<head>
<script>
function print(message) {
    var paragraph = document.createElement("p");
    paragraph.appendChild(document.createTextNode(message));
    document.getElementById("console").appendChild(paragraph);
}

function test() {
    if (window.testRunner) {
        testRunner.dumpAsText();
    }
    
    if (window === document.defaultView)
        print("PASS: defaultView is the window object");
    else
        print("FAIL: defaultView is not the window object");
    
    if (document.defaultView.document === document)
        print("PASS: defaultView.document is the document object");
    else
        print("FAIL: defaultView.document is not the document object");
    
    if (document.defaultView.getComputedStyle)
        print("PASS: defaultView implements getComputedStyle");
    else
        print("FAIL: defaultView does not implement getComputedStyle");
    
    if (document.defaultView.getMatchedCSSRules)
        print("PASS: defaultView implements getMatchedCSSRules");
    else
        print("FAIL: defaultView does not implement getMatchedCSSRules");
}
</script>
</head>
<body onload="test();">
<p>This test checks that document.defaultView returns the window object, and that it implements 
all the methods and properties it should.</p>
<p>If the test passes, you will see only PASS messages below.</p>
<hr>
<div id='console'/>
</body>
</html>