widget/tests/test_native_menus.xul

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"
                 type="text/css"?>
<window title="Native menu system tests"
  xmlns:html="http://www.w3.org/1999/xhtml"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

  <title>Native menu system tests</title>
  <script type="application/javascript"
          src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js" />

<body  xmlns="http://www.w3.org/1999/xhtml">
<p id="display"></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
</pre>
</body>

<script class="testbody" type="application/javascript">
<![CDATA[

SimpleTest.waitForExplicitFinish();
window.open("native_menus_window.xul", "NativeMenuWindow", 
            "chrome,width=600,height=600");

]]>
</script>

</window>