1 files changed, 76 insertions, 0 deletions
diff --git a/docshell/test/chrome/bug449780_window.xhtml b/docshell/test/chrome/bug449780_window.xhtml
new file mode 100644
index 0000000000..4d21d4d046
--- /dev/null
+++ b/docshell/test/chrome/bug449780_window.xhtml
@@ -0,0 +1,76 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<window title="Mozilla Bug 449780" onload="doTheTest()"
+  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+  <hbox id="parent">
+  </hbox>
+
+  <!-- test code goes here -->
+  <script type="application/javascript"><![CDATA[
+    var imports = [ "SimpleTest", "is", "isnot", "ok", "onerror" ];
+    for (var name of imports) {
+      window[name] = window.arguments[0][name];
+    }
+
+    function $(id) {
+      return document.getElementById(id);
+    }
+
+    function addBrowser(parent, id, width, height) {
+      var b =
+        document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "browser");
+      b.setAttribute("type", "content");
+      b.setAttribute("id", id);
+      b.setAttribute("width", width);
+      b.setAttribute("height", height);
+      $(parent).appendChild(b);
+    }
+    addBrowser("parent", "f1", 300, 200);
+    addBrowser("parent", "f2", 300, 200);
+
+    /** Test for Bug 449780 **/
+    var doc1 = "data:text/html,<html><body>This is a test</body></html>";
+    var doc2 = "data:text/html,<html><body>This is a second test</body></html>";
+
+    function getDOM(id) {
+      return $(id).contentDocument.documentElement.innerHTML;
+    }
+
+    var tester = (function*() {
+      var origDOM = getDOM("f1");
+      $("f1").contentDocument.body.textContent = "Modified";
+      var modifiedDOM = getDOM("f1");
+      isnot(origDOM, modifiedDOM, "DOM should be different");
+      $("f1").contentWindow.location.href = doc2;
+      yield undefined;
+
+      $("f1").goBack();
+      yield undefined;
+
+      is(getDOM("f1"), modifiedDOM, "Should have been bfcached");
+      $("f1").goForward();
+      yield undefined;
+
+      // Ignore the notifications during swap
+      $("f1").removeEventListener("pageshow", testDriver, false);
+      $("f1").swapDocShells($("f2"));
+      $("f2").addEventListener("pageshow", testDriver, false);
+      $("f2").goBack();
+      yield undefined;
+
+      is(getDOM("f2"), origDOM, "Should have not have been bfcached");
+      window.close();
+      SimpleTest.finish();
+    })();
+
+    function testDriver() {
+      setTimeout(function() { tester.next() }, 0);
+    }
+
+    function doTheTest() {
+      $("f1").addEventListener("pageshow", testDriver, false);
+      $("f1").setAttribute("src", doc1);
+    }
+  ]]></script>
+</window>