diff -r 000000000000 -r 6474c204b198 toolkit/modules/tests/xpcshell/test_Services.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/modules/tests/xpcshell/test_Services.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,110 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * This file tests the Services.jsm module.
+ */
+
+////////////////////////////////////////////////////////////////////////////////
+/// Globals
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+function checkService(service, interface) {
+  do_print("Checking that Services." + service + " is an " + interface);
+  do_check_true(service in Services);
+  do_check_true(Services[service] instanceof interface);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+/// Tests
+
+function run_test()
+{
+  do_get_profile();
+
+  checkService("appShell", Ci.nsIAppShellService);
+  checkService("appinfo", Ci.nsIXULRuntime);
+  checkService("blocklist", Ci.nsIBlocklistService);
+  checkService("cache", Ci.nsICacheService);
+  checkService("cache2", Ci.nsICacheStorageService);
+  checkService("clipboard", Ci.nsIClipboard);
+  checkService("console", Ci.nsIConsoleService);
+  checkService("contentPrefs", Ci.nsIContentPrefService);
+  checkService("cookies", Ci.nsICookieManager2);
+  checkService("dirsvc", Ci.nsIDirectoryService);
+  checkService("dirsvc", Ci.nsIProperties);
+  checkService("DOMRequest", Ci.nsIDOMRequestService);
+  checkService("domStorageManager", Ci.nsIDOMStorageManager);
+  checkService("downloads", Ci.nsIDownloadManager);
+  checkService("droppedLinkHandler", Ci.nsIDroppedLinkHandler);
+  checkService("eTLD", Ci.nsIEffectiveTLDService);
+  checkService("focus", Ci.nsIFocusManager);
+  checkService("io", Ci.nsIIOService);
+  checkService("io", Ci.nsIIOService2);
+  checkService("locale", Ci.nsILocaleService);
+  checkService("logins", Ci.nsILoginManager);
+  checkService("obs", Ci.nsIObserverService);
+  checkService("perms", Ci.nsIPermissionManager);
+  checkService("prefs", Ci.nsIPrefBranch);
+  checkService("prefs", Ci.nsIPrefService);
+  checkService("prompt", Ci.nsIPromptService);
+  checkService("scriptSecurityManager", Ci.nsIScriptSecurityManager);
+  checkService("scriptloader", Ci.mozIJSSubScriptLoader);
+  checkService("startup", Ci.nsIAppStartup);
+  checkService("storage", Ci.mozIStorageService);
+  checkService("strings", Ci.nsIStringBundleService);
+  checkService("sysinfo", Ci.nsIPropertyBag2);
+  checkService("telemetry", Ci.nsITelemetry);
+  checkService("tm", Ci.nsIThreadManager);
+  checkService("uriFixup", Ci.nsIURIFixup);
+  checkService("urlFormatter", Ci.nsIURLFormatter);
+  checkService("vc", Ci.nsIVersionComparator);
+  checkService("wm", Ci.nsIWindowMediator);
+  checkService("ww", Ci.nsIWindowWatcher);
+  if ("nsIBrowserSearchService" in Ci) {
+    checkService("search", Ci.nsIBrowserSearchService);
+  }
+  if ("nsIAndroidBridge" in Ci) {
+    checkService("androidBridge", Ci.nsIAndroidBridge);
+  }
+
+  // In xpcshell tests, the "@mozilla.org/xre/app-info;1" component implements
+  // only the nsIXULRuntime interface, but not nsIXULAppInfo.  To test the
+  // service getter for the latter interface, we define a minimal mock factory
+  // that returns an object defining both interfaces.
+  let contractID = "@mozilla.org/xre/app-info;1";
+  let mockFactory = {
+    createInstance: function (aOuter, aIid) {
+      return {
+        QueryInterface: XPCOMUtils.generateQI([Ci.nsIXULRuntime,
+                                               Ci.nsIXULAppInfo]),
+      }.QueryInterface(aIid);
+    }
+  };
+
+  let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+  let cid = registrar.contractIDToCID(contractID);
+  let oldFactory = Components.manager.getClassObject(Cc[contractID],
+                                                     Ci.nsIFactory);
+  registrar.unregisterFactory(cid, oldFactory);
+  registrar.registerFactory(cid, "", contractID, mockFactory);
+
+  // We need to reload the module to update the lazy getter.
+  Cu.unload("resource://gre/modules/Services.jsm");
+  Cu.import("resource://gre/modules/Services.jsm");
+
+  checkService("appinfo", Ci.nsIXULAppInfo);
+
+  // Clean up.
+  registrar.unregisterFactory(cid, mockFactory);
+  registrar.registerFactory(cid, "", contractID, oldFactory);
+
+  Cu.unload("resource://gre/modules/Services.jsm");
+}