LayoutTests/fast/media/mq-js-media-forward-syntax.html

<html>
<head>
<title>CSS3 media query test: stylesheet media.mediaText = parsing, media descriptor fallback in document.StyleSheet.media.mediaText</title>
<link rel="help" href="http://www.w3.org/TR/css3-mediaqueries/" />

<!-- the media property of stylesheet below will be manipulated, and
 manipulation should respect html media descriptor forward-compatible syntax.
 This means the manipulation should succeed. -->
<style type="text/css">

p#result { color: green;}

@media screen and resolution > 40dpi {
/* media query with syntax error should fail */
/* corresponding DOM manipulation to the mediaText of the stylesheet will succeed */
p#result { color: red;}

}
</style>
<script language="javascript">
function test() {
   // this should not throw, because StyleSheet should respect Media Description forward-compatible syntax
   document.styleSheets[0].media.mediaText = "screen and resolution > 40dpi";
   document.getElementById("result").innerHTML = "This text should be green.";
}
</script>


</head>
<body onload="test()">
<p id="result">Failure: test not run</p>
</body>
</html>