diff -r 000000000000 -r 6474c204b198 toolkit/components/urlformatter/tests/unit/head_urlformatter.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/urlformatter/tests/unit/head_urlformatter.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+var XULAppInfo = {
+  vendor: "Mozilla",
+  name: "Url Formatter Test",
+  ID: "urlformattertest@test.mozilla.org",
+  version: "1",
+  appBuildID: "2007122405",
+  platformVersion: "2.0",
+  platformBuildID: "2007122406",
+  inSafeMode: false,
+  logConsoleErrors: true,
+  OS: "XPCShell",
+  XPCOMABI: "noarch-spidermonkey",
+
+  QueryInterface: function QueryInterface(iid) {
+    if (iid.equals(Ci.nsIXULAppInfo) ||
+        iid.equals(Ci.nsIXULRuntime) ||
+        iid.equals(Ci.nsISupports))
+      return this;
+    throw Cr.NS_ERROR_NO_INTERFACE;
+  }
+};
+
+var XULAppInfoFactory = {
+  createInstance: function (outer, iid) {
+    if (outer != null)
+      throw Cr.NS_ERROR_NO_AGGREGATION;
+    return XULAppInfo.QueryInterface(iid);
+  }
+};
+
+var registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+registrar.registerFactory(Components.ID("{ecff8849-cee8-40a7-bd4a-3f4fdfeddb5c}"),
+                          "XULAppInfo", "@mozilla.org/xre/app-info;1",
+                          XULAppInfoFactory);