gecko-dev/content/base/test/chrome/file_bug616841.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"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=616841
-->
<window title="Mozilla Bug 616841"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  onload="start()">
  <label value="Mozilla Bug 616841"/>
  <!-- test code goes here -->
  <script type="application/javascript"><![CDATA[

    const FRAME_SCRIPT = 
"data:,addMessageListener(\n"+
"  'cmp',\n"+
"  function (m) {\n"+
"    sendAsyncMessage('cmp', { i: m.json.i,\n"+
"                              cmp: m.json.a.localeCompare(m.json.b) });\n"+
"  });\n"+
"sendAsyncMessage('contentReady');";

    var toCompare = [ [ "C", "D" ],
                      [ "D", "C" ],
                      [ "\u010C", "D" ],
                      [ "D", "\u010C" ] ];
    var nCmps = 0;

    function recvContentReady(m) {
      for (var i = 0; i < toCompare.length; ++i) {
        var pair = toCompare[i];
        messageManager.broadcastAsyncMessage("cmp",
                                             { i: i, a: pair[0], b: pair[1] });
      }
    }

    function recvCmp(m) {
      var i = m.json.i, cmp = m.json.cmp;
      var pair = toCompare[i];
      opener.wrappedJSObject.is(pair[0].localeCompare(pair[1]), cmp, "localeCompare returned same result in frame script");

      if (toCompare.length == ++nCmps) {
         messageManager.removeMessageListener("cmp", recvCmp);
        finish();
      }
    }

    function start() {
      messageManager.addMessageListener("contentReady", recvContentReady);
      messageManager.addMessageListener("cmp", recvCmp);
      messageManager.loadFrameScript(FRAME_SCRIPT, true);
    }

    function finish() {
      opener.setTimeout("done()", 0);
      window.close();
    }

  ]]></script>

  <browser id="browser" type="content" src="about:blank"/>
</window>