xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

        width="600"

        height="600"

        onload="nextTestAsync();"

        title="bug 582176 test">

  <script type="application/javascript" src= "chrome://mochikit/content/chrome-harness.js" />

  <script type="application/javascript" src="docshell_helpers.js" />

  <script type="application/javascript">

    // Define the generator-iterator for the tests.

    var tests = testIterator();

    ////

    // Execute the next test in the generator function.

    //

    function nextTestAsync() {

      SimpleTest.executeSoon(tests.next.bind(tests));

    }

    ////

    // Generator function for test steps for bug 582176:

    // Description goes here.

    //

    function* testIterator()

    {

      var browser = document.getElementById('content');

      browser.addEventListener("pageshow", nextTestAsync, true);

      enableBFCache(true);

      var notificationCount = 0;

      var observer = {

        observe: function(aSubject, aTopic, aData) {

          is(aSubject, browser.contentWindow,

             "correct subject");

          is(aTopic, "content-document-global-created",

             "correct topic");

          is(aData, "http://mochi.test:8888",

             "correct data");

          notificationCount++;

        }

      };

      os = Cc["@mozilla.org/observer-service;1"].

        getService(Ci.nsIObserverService);

      os.addObserver(observer, "content-document-global-created");

      browser.loadURI("http://mochi.test:8888/tests/docshell/test/chrome/582176_dummy.html");

      yield undefined;

      is(browser.contentWindow.testVar, undefined,

         "variable unexpectedly there already");

      browser.contentWindow.wrappedJSObject.testVar = 1;

      is(notificationCount, 1, "Should notify on first navigation");

      browser.loadURI("http://mochi.test:8888/tests/docshell/test/chrome/582176_dummy.html?2");

      yield undefined;

      is(browser.contentWindow.wrappedJSObject.testVar, undefined,

         "variable should no longer be there");

      is(notificationCount, 2, "Should notify on second navigation");

      browser.goBack();

      yield undefined;

      is(browser.contentWindow.wrappedJSObject.testVar, 1,

         "variable should still be there");

      is(notificationCount, 2, "Should not notify on back navigation");

      browser.loadURI("http://mochi.test:8888/tests/docshell/test/chrome/582176_xml.xml");

      yield undefined;

      is(browser.contentDocument.body.textContent, "xslt result",

         "Transform performed successfully");

      is(notificationCount, 3, "Should notify only once on XSLT navigation");

      os.removeObserver(observer, "content-document-global-created")

      // Tell the framework the test is finished.

      finish();

    }

  ]]></script>

  <browser type="content" primary="true" flex="1" id="content" src="about:blank"/>

</window>