gecko/content/base/test/chrome/file_bug990812-4.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=990812
-->
<window title="Mozilla Bug 990812"
  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  onload="start();">
  <label value="Mozilla Bug 990812"/>
  <!-- test code goes here -->
  <script type="application/javascript"><![CDATA[

    var FRAME_SCRIPT1 = "data:,addMessageListener('test', function () {" +
                        "sendSyncMessage('test', 'frame1')})";
    var FRAME_SCRIPT2 = "data:,addMessageListener('test', function () {" +
                        "sendSyncMessage('test', 'frame2')})";

    var Cc = Components.classes;
    var Ci = Components.interfaces;
    var globalMM = Cc["@mozilla.org/globalmessagemanager;1"]
                     .getService(Ci.nsIMessageListenerManager);

    function is(val, exp, msg) {
      opener.wrappedJSObject.is(val, exp, msg);
    }

    function promiseMessage(type, mm) {
      return new Promise(function (resolve) {
        mm.addMessageListener("test", function onMessage(msg) {
          mm.removeMessageListener("test", onMessage);
          is(msg.data, type, "correct message " + type);
          resolve();
        });
      });
    }

    /**
     * Tests that swapping docShells works as expected wrt to groups.
     */
    function start() {
      var browser1 = document.querySelector("browser");
      browser1.messageManager.loadFrameScript(FRAME_SCRIPT1, true);

      var browser2 = document.querySelector("browser + browser");
      browser2.messageManager.loadFrameScript(FRAME_SCRIPT2, true);

      var promise1 = promiseMessage("frame2", getGroupMessageManager("test1"));
      var promise2 = promiseMessage("frame1", getGroupMessageManager("test2"));

      var flo1 = browser1.QueryInterface(Ci.nsIFrameLoaderOwner);
      var flo2 = browser2.QueryInterface(Ci.nsIFrameLoaderOwner);
      flo1.swapFrameLoaders(flo2);
      messageManager.broadcastAsyncMessage("test");

      Promise.all([promise1, promise2]).then(function () {
        opener.setTimeout("next()");
        window.close();
      });
    }

  ]]></script>

  <browser messagemanagergroup="test1" type="content-targetable" src="about:mozilla" />
  <browser messagemanagergroup="test2" type="content-targetable" src="about:mozilla" />

</window>