Merge lp:~aacid/unity-greeter/vala_testing_try into lp:unity-greeter

[Albert Astals Cid]

Some automated testing

Contains a refactoring to make the UnityGreeter a singleton so it can forward singletons from the Lightdm.Greeter

Needs a lightdm with https://code.launchpad.net/~aacid/lightdm/vala_enum_int merged in (or you can just edit that file in its installed location for quick testing)

[Michael Terry (mterry)]

tests/Makefile.am:
noinst_PROGRAMS should be check_PROGRAMS (won't be built until user runs make check)

When running make check, I get:
** (./unity-greeter-test:11552): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-qYpCYbTcHT: Connection refused
/bin/bash: line 5: 11552 Trace/breakpoint trap (core dumped) ${dir}$tst
FAIL: unity-greeter-test

Why "Posix.usleep (10000)" in process_events()?

"GLib.assert (list.num_entries() == 28)" in simple_navigation() seems brittle. Obviously we'll have to update it as we add new users, which isn't so bad. But is it expecting remote-login user to be there? In other tests, you have a function to wait for remote-login to appear. But at the end of this function, it assumes it is there by checking "*remote_directory*http://crazyurl.com".

Various test functions should probably use inject_key() to inject HOME, UP, DOWN, and END keys instead of calling do_scroll directly? I guess that's like an integration vs unit testing issue. Given the choice, I generally prefer integration.

Overall design comments:
So we're mocking out MenuBar and UnityGreeter. I suppose if we want to test those, we can add another executable with different mocks.

The whole thing seems a bit brittle to me. It's very reliant on current internals. And lots of timeouts and knowing that the Active user is first and such. I guess that's the problem with testing an app that wasn't well-designed for testing it, unlike a library that at least has an API barrier to test.

review: Needs Fixing

[lp:~aacid/unity-greeter/vala_testing_try]

578. By Albert Astals Cid on 2012-09-06

Use check_ instead of noinst_ as suggested by mterry

[Albert Astals Cid (aacid)]

> tests/Makefile.am:
> noinst_PROGRAMS should be check_PROGRAMS (won't be built until user runs make
> check)

Done

> When running make check, I get:
> ** (./unity-greeter-test:11552): WARNING **: Couldn't connect to accessibility
> bus: Failed to connect to socket /tmp/dbus-qYpCYbTcHT: Connection refused
> /bin/bash: line 5: 11552 Trace/breakpoint trap (core dumped) ${dir}$tst
> FAIL: unity-greeter-test

Can't repro, are you using as a regular user or in some special setup?

>
> Why "Posix.usleep (10000)" in process_events()?

No need to burn your cpu, it doesn't really belong there but in all the while's that call process_events, i'll move it somewhere else so it's in the proper place.

> "GLib.assert (list.num_entries() == 28)" in simple_navigation() seems brittle.
> Obviously we'll have to update it as we add new users, which isn't so bad.
> But is it expecting remote-login user to be there?
No, it's not

> In other tests, you have a
> function to wait for remote-login to appear. But at the end of this function,
> it assumes it is there by checking "*remote_directory*http://crazyurl.com".

Yeah, it's because scrolling will take enough time for the 1s timeout we add for remote login to appear to have passed. I can add some comment explaining that if you prefer

> Various test functions should probably use inject_key() to inject HOME, UP,
> DOWN, and END keys instead of calling do_scroll directly? I guess that's like
> an integration vs unit testing issue. Given the choice, I generally prefer
> integration.

The thing is that i only use inject_key where it is really needed (i.e. in a place where it has to "overwrite" the selected text in the autocompleter). I will try to use inject_key

>
> Overall design comments:
> So we're mocking out MenuBar and UnityGreeter. I suppose if we want to test
> those, we can add another executable with different mocks.
Yep

> The whole thing seems a bit brittle to me. It's very reliant on current
> internals. And lots of timeouts and knowing that the Active user is first and
> such. I guess that's the problem with testing an app that wasn't well-
> designed for testing it, unlike a library that at least has an API barrier to
> test.
Yep, but the timeouts, active etc are not really "internals" but "test mode" internals, i.e. part of the test is in the test/ folder and the "data" of it is in the test_mode = true part of the code so that you can also test it manually. I guess i could refactor it a lot to make it look a bit nicer, not sure it's worth it though.

[lp:~aacid/unity-greeter/vala_testing_try]

579. By Albert Astals Cid on 2012-09-06

Don't be time dependand with the 28 vs 29 depending if the remote login has appeared already or not

580. By Albert Astals Cid on 2012-09-06

remove the pop, doesn't do anything since the list doesn't want to be empty

581. By Albert Astals Cid on 2012-09-07

Move the usleeps to the whiles

582. By Albert Astals Cid on 2012-09-07

inject_key instead of calling the scroll function directly

583. By Albert Astals Cid on 2012-09-07

Use xvfb-run as suggested by mterry

584. By Albert Astals Cid on 2012-09-07

need this to make it a bit more robust

585. By Albert Astals Cid on 2012-09-07

Use our own gsettings

586. By Albert Astals Cid on 2012-09-10

also add dbus-launch

587. By Albert Astals Cid on 2012-09-10

Do not assert (while testing) if the backgrounds are not installed

[Albert Astals Cid (aacid)]

Ok, tested in a chroot and tests seem to be passing fine there too

[Michael Terry (mterry)]

Agreed, works in a chroot! Thanks. That will let us turn this on during package build.

Looks OK to me. One last (hopefully) question: I had earlier mentioned that the usleeps made me feel like things were a bit racy. You've now taken it out of the process_events function, but then sprinkled them around, usually right after a process_events call. Why are they needed? Are they races that we don't have control over and thus can't just fix directly?

[Albert Astals Cid (aacid)]

As said on the previous comment the usleeps are there so you don't burn your CPU, there's no need to do a huge busy loop waiting for something to trigger, you can sleep 10ms and check again.

If it makes you feel unconfortable and we don't mind our servers using more CPU than needed I can remove them.

[Michael Terry (mterry)]

But I guess I didn't understand then either. Before, we slept before processing all events. Now, we sleep after processing all events. In neither case would we be burning CPU without the sleep, right?

During a sleep, the events aren't being queued up or anything, since a sleep will stop the glib mainloop, eh? So if you mean that the test as a whole is CPU intensive, that doesn't bother me. It's the nature of tests to be doing things until they are done, not to optimize for low CPU usage.

[Michael Terry (mterry)]

OK, I got sorted by Albert on IRC.

review: Approve

=== modified file '.bzrignore'
--- .bzrignore	2012-08-07 13:08:38 +0000
+++ .bzrignore	2012-09-12 14:04:20 +0000
@@ -20,6 +20,9 @@
 src/*.c
 src/unity_greeter_vala.stamp
 src/unity-greeter
+tests/*.c
+tests/unity_greeter_test_vala.stamp
+tests/unity-greeter-test
 
 config.h
 config.h.in

=== modified file 'Makefile.am'
--- Makefile.am	2012-01-10 09:31:10 +0000
+++ Makefile.am	2012-09-12 14:04:20 +0000
@@ -1,6 +1,6 @@
 # -*- Mode: Automake; indent-tabs-mode: t; tab-width: 4 -*-
 
-SUBDIRS = data po src
+SUBDIRS = data po src tests
 
 EXTRA_DIST = \
 	autogen.sh \

=== modified file 'configure.ac'
--- configure.ac	2012-09-04 13:45:23 +0000
+++ configure.ac	2012-09-12 14:04:20 +0000
@@ -48,5 +48,6 @@
 data/Makefile
 po/Makefile.in
 src/Makefile
+tests/Makefile
 ])
 AC_OUTPUT

=== modified file 'po/POTFILES.skip'
--- po/POTFILES.skip	2012-08-03 13:31:27 +0000
+++ po/POTFILES.skip	2012-09-12 14:04:20 +0000
@@ -19,4 +19,9 @@
 src/unity-greeter.c
 src/user-list.c
 src/user-prompt-box.c
+tests/greeter-list.c
+tests/main-window.c
+tests/prompt-box.c
+tests/session-list.c
+tests/user-list.c
 

=== modified file 'src/background.vala'
--- src/background.vala	2012-08-30 02:54:58 +0000
+++ src/background.vala	2012-09-12 14:04:20 +0000
@@ -122,10 +122,18 @@
 
         for (var i = 0; i < widths.length; i++)
         {
-            patterns[i] = create_pattern (images[i]);
-            if (i == 0)
-                pixbuf_average_value (images[i], out average_color);
-            images[i] = null;
+            if (images[i] != null)
+            {
+                patterns[i] = create_pattern (images[i]);
+                if (i == 0)
+                    pixbuf_average_value (images[i], out average_color);
+                images[i] = null;
+            }
+            else
+            {
+                debug ("images[%d] was null for %s", i, filename);
+                patterns[i] = null;
+            }
         }
 
         loaded ();

=== modified file 'src/greeter-list.vala'
--- src/greeter-list.vala	2012-08-30 15:02:23 +0000
+++ src/greeter-list.vala	2012-09-12 14:04:20 +0000
@@ -176,7 +176,7 @@
 
     public void cancel_authentication ()
     {
-        UnityGreeter.greeter.cancel_authentication ();
+        UnityGreeter.singleton.cancel_authentication ();
         entry_selected (selected_entry.id);
     }
 
@@ -699,9 +699,9 @@
 
     protected void connect_to_lightdm ()
     {
-        UnityGreeter.greeter.show_message.connect (show_message_cb);
-        UnityGreeter.greeter.show_prompt.connect (show_prompt_cb);
-        UnityGreeter.greeter.authentication_complete.connect (authentication_complete_cb);
+        UnityGreeter.singleton.show_message.connect (show_message_cb);
+        UnityGreeter.singleton.show_prompt.connect (show_prompt_cb);
+        UnityGreeter.singleton.authentication_complete.connect (authentication_complete_cb);
     }
 
     protected void show_message_cb (string text, LightDM.MessageType type)
@@ -714,10 +714,10 @@
         /* Notify the greeter on what user has been logged */
         if (get_selected_id () == "*other" && manual_name == null)
         {
-            if (UnityGreeter.test_mode)
+            if (UnityGreeter.singleton.test_mode)
                 manual_name = test_username;
             else
-                manual_name = UnityGreeter.greeter.authentication_user;
+                manual_name = UnityGreeter.singleton.authentication_user();
         }
 
         prompted = true;
@@ -743,10 +743,10 @@
             return;
 
         bool is_authenticated;
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             is_authenticated = test_is_authenticated;
         else
-            is_authenticated = UnityGreeter.greeter.is_authenticated;
+            is_authenticated = UnityGreeter.singleton.is_authenticated();
 
         if (is_authenticated)
         {
@@ -754,7 +754,7 @@
             if (prompted)
             {
                 login_complete ();
-                if (UnityGreeter.test_mode)
+                if (UnityGreeter.singleton.test_mode)
                     start_session ();
                 else
                 {
@@ -806,16 +806,16 @@
 
         greeter_authenticating_user = get_selected_id ();
 
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             test_start_authentication ();
         else
         {
             if (get_selected_id () == "*other")
-                UnityGreeter.greeter.authenticate ();
+                UnityGreeter.singleton.authenticate ();
             else if (get_selected_id () == "*guest")
-                UnityGreeter.greeter.authenticate_as_guest ();
+                UnityGreeter.singleton.authenticate_as_guest ();
             else
-                UnityGreeter.greeter.authenticate (get_selected_id ());
+                UnityGreeter.singleton.authenticate (get_selected_id ());
         }
     }
 
@@ -834,7 +834,7 @@
         background.draw_grid = false;
         background.queue_draw ();
 
-        UnityGreeter.start_session (get_lightdm_session ());
+        UnityGreeter.singleton.start_session (get_lightdm_session ());
     }
 
     public void login_complete ()

=== modified file 'src/main-window.vala'
--- src/main-window.vala	2012-08-30 14:37:46 +0000
+++ src/main-window.vala	2012-09-12 14:04:20 +0000
@@ -93,7 +93,7 @@
 
         add_user_list ();
 
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
         {
             /* Simulate an 800x600 monitor to the left of a 640x480 monitor */
             monitors = new List<Monitor> ();

=== modified file 'src/menubar.vala'
--- src/menubar.vala	2012-09-04 14:10:33 +0000
+++ src/menubar.vala	2012-09-12 14:04:20 +0000
@@ -267,7 +267,7 @@
         }
         keyboard_label.label = desc;
 
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             debug ("Setting layout to %s", layout.name);
         else
             LightDM.set_layout (layout);

=== modified file 'src/session-list.vala'
--- src/session-list.vala	2012-09-06 08:48:36 +0000
+++ src/session-list.vala	2012-09-12 14:04:20 +0000
@@ -33,7 +33,7 @@
     {
         label = _("Select desktop environment");
 
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
         {
             add_session ("gnome", "GNOME");
             add_session ("kde", "KDE");

=== modified file 'src/unity-greeter.vala'
--- src/unity-greeter.vala	2012-09-04 14:10:33 +0000
+++ src/unity-greeter.vala	2012-09-12 14:04:20 +0000
@@ -21,37 +21,42 @@
 
 public class UnityGreeter
 {
-    static bool show_version = false;
-    public static bool test_mode = false;
-    public static const OptionEntry[] options =
-    {
-        { "version", 'v', 0, OptionArg.NONE, ref show_version,
-          /* Help string for command line --version flag */
-          N_("Show release version"), null },
-        { "test-mode", 0, 0, OptionArg.NONE, ref test_mode,
-          /* Help string for command line --test-mode flag */
-          N_("Run in test mode"), null },
-        { null }
-    };
-
-    private static Timer log_timer;
-
-    private static string state_file;
-    private static KeyFile state;
-
-    private static Cairo.XlibSurface background_surface;
+    public static UnityGreeter singleton;
+
+    public signal void show_message (string text, LightDM.MessageType type);
+    public signal void show_prompt (string text, LightDM.PromptType type);
+    public signal void authentication_complete ();
+
+    public bool test_mode = false;
+
+    private string state_file;
+    private KeyFile state;
+
+    private Cairo.XlibSurface background_surface;
 
     private SettingsDaemon settings_daemon;
 
-    private static MainWindow main_window;
+    private MainWindow main_window;
 
-    public static LightDM.Greeter greeter;
+    private LightDM.Greeter greeter;
 
     private Canberra.Context canberra_context;
 
-    public UnityGreeter ()
+    private static Timer log_timer;
+
+    private UnityGreeter (bool test_mode_)
     {
+        singleton = this;
+        test_mode = test_mode_;
+
+        /* Prepare to set the background */
+        debug ("Creating background surface");
+        background_surface = create_root_surface (Gdk.Screen.get_default ());
+
         greeter = new LightDM.Greeter ();
+        greeter.show_message.connect ((text, type) => { show_message (text, type); });
+        greeter.show_prompt.connect ((text, type) => { show_prompt (text, type); });
+        greeter.authentication_complete.connect (() => { authentication_complete (); });
         var connected = false;
         try
         {
@@ -91,7 +96,7 @@
         Gdk.threads_add_idle (ready_cb);
     }
 
-    public static string? get_state (string key)
+    public string? get_state (string key)
     {
         try
         {
@@ -103,7 +108,7 @@
         }
     }
 
-    public static void set_state (string key, string value)
+    public void set_state (string key, string value)
     {
         state.set_value ("greeter", key, value);
         var data = state.to_data ();
@@ -117,12 +122,12 @@
         }
     }
 
-    public static void push_list (GreeterList widget)
+    public void push_list (GreeterList widget)
     {
         main_window.push_list (widget);
     }
 
-    public static void pop_list ()
+    public void pop_list ()
     {
         main_window.pop_list ();
     }
@@ -144,12 +149,12 @@
         return null;
     }
 
-    public static void start_session (string? session)
+    public void start_session (string? session)
     {
         /* Set the background */
         refresh_background (Gdk.Screen.get_default (), background_surface);
 
-        if (UnityGreeter.test_mode)
+        if (test_mode)
         {
                 debug ("Successfully logged in!  Quitting...");
                 Gtk.main_quit ();
@@ -158,7 +163,7 @@
         {
             try
             {
-                UnityGreeter.greeter.start_session_sync (session);
+                greeter.start_session_sync (session);
             }
             catch (Error e)
             {
@@ -192,7 +197,67 @@
         main_window.set_keyboard_state ();
     }
 
-    private static Gdk.FilterReturn focus_upon_map (Gdk.XEvent gxevent, Gdk.Event event)
+    public bool is_authenticated ()
+    {
+        return greeter.is_authenticated;
+    }
+
+    public void authenticate (string? userid = null)
+    {
+        greeter.authenticate (userid);
+    }
+
+    public void authenticate_as_guest ()
+    {
+        greeter.authenticate_as_guest ();
+    }
+
+    public void authenticate_remote (string? session, string? userid)
+    {
+        UnityGreeter.singleton.greeter.authenticate_remote (session, userid);
+    }
+
+    public void cancel_authentication ()
+    {
+        greeter.cancel_authentication ();
+    }
+
+    public void respond (string response)
+    {
+        greeter.respond (response);
+    }
+
+    public string authentication_user ()
+    {
+        return greeter.authentication_user;
+    }
+
+    public string default_session_hint ()
+    {
+        return greeter.default_session_hint;
+    }
+
+    public string select_user_hint ()
+    {
+        return greeter.select_user_hint;
+    }
+
+    public bool show_manual_login_hint ()
+    {
+        return greeter.show_manual_login_hint;
+    }
+
+    public bool hide_users_hint ()
+    {
+        return greeter.hide_users_hint;
+    }
+
+    public bool has_guest_account_hint ()
+    {
+        return greeter.has_guest_account_hint;
+    }
+
+    private Gdk.FilterReturn focus_upon_map (Gdk.XEvent gxevent, Gdk.Event event)
     {
         var xevent = (X.Event*)gxevent;
         if (xevent.type == X.EventType.MapNotify)
@@ -344,9 +409,16 @@
         debug ("Setting cursor");
         Gdk.get_default_root_window ().set_cursor (new Gdk.Cursor (Gdk.CursorType.LEFT_PTR));
 
-        /* Prepare to set the background */
-        debug ("Creating background surface");
-        background_surface = create_root_surface (Gdk.Screen.get_default ());
+        bool do_show_version = false;
+        bool do_test_mode = false;
+        OptionEntry versionOption = { "version", 'v', 0, OptionArg.NONE, ref do_show_version,
+                /* Help string for command line --version flag */
+                N_("Show release version"), null };
+        OptionEntry testOption =  { "test-mode", 0, 0, OptionArg.NONE, ref do_test_mode,
+                /* Help string for command line --test-mode flag */
+                N_("Run in test mode"), null };
+        OptionEntry nullOption = { null };
+        OptionEntry[] options = { versionOption, testOption, nullOption };
 
         debug ("Loading command line options");
         var c = new OptionContext (/* Arguments and description for --help text */
@@ -365,17 +437,17 @@
             stderr.printf ("\n");
             return Posix.EXIT_FAILURE;
         }
-        if (show_version)
+        if (do_show_version)
         {
             /* Note, not translated so can be easily parsed */
             stderr.printf ("unity-greeter %s\n", Config.VERSION);
             return Posix.EXIT_SUCCESS;
         }
 
-        if (test_mode)
+        if (do_test_mode)
             debug ("Running in test mode");
 
-        if (!test_mode)
+        if (!do_test_mode)
         {
             /* Make nm-applet hide items the user does not have permissions to interact with */
             Environment.set_variable ("NM_APPLET_HIDE_POLICY_ITEMS", "1", true);
@@ -415,7 +487,7 @@
             settings.set ("gtk-xft-rgba", value, null);
 
         debug ("Creating Unity Greeter");
-        var greeter = new UnityGreeter ();
+        var greeter = new UnityGreeter (do_test_mode);
 
         debug ("Showing greeter");
         greeter.show ();

=== modified file 'src/user-list.vala'
--- src/user-list.vala	2012-09-04 14:10:33 +0000
+++ src/user-list.vala	2012-09-12 14:04:20 +0000
@@ -129,7 +129,7 @@
 
         connect_to_lightdm ();
 
-        if (!UnityGreeter.test_mode && UGSettings.get_boolean (UGSettings.KEY_ENABLE_REMOTE_LOGIN))
+        if (!UnityGreeter.singleton.test_mode && UGSettings.get_boolean (UGSettings.KEY_ENABLE_REMOTE_LOGIN))
             remote_login_service_watch = Bus.watch_name (BusType.SESSION,
                                             "com.canonical.RemoteLogin",
                                             BusNameWatcherFlags.AUTO_START,
@@ -372,7 +372,7 @@
             try
             {
                 var url = url_from_remote_loding_server_list_name (selected_entry.id);
-                if (UnityGreeter.test_mode)
+                if (UnityGreeter.singleton.test_mode)
                 {
                     if (password_field.text == "password")
                     {
@@ -445,7 +445,7 @@
         sensitive = false;
         will_clear = true;
         greeter_authenticating_user = selected_entry.id;
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
         {
             Gtk.Entry field = current_remote_fields.get ("password") as Gtk.Entry;
             test_is_authenticated = field.text == "password";
@@ -456,7 +456,7 @@
         }
         else
         {
-            UnityGreeter.greeter.authenticate_remote (get_lightdm_session (), null);
+            UnityGreeter.singleton.authenticate_remote (get_lightdm_session (), null);
             remote_login_service.set_last_used_server.begin (currently_browsing_server_url, url_from_remote_loding_server_list_name (selected_entry.id));
         }
     }
@@ -487,7 +487,7 @@
                 if (is_supported_remote_session (config_session))
                 {
                     greeter_authenticating_user = selected_entry.id;
-                    UnityGreeter.greeter.authenticate_remote (config_session, null);
+                    UnityGreeter.singleton.authenticate_remote (config_session, null);
                 }
             }
             dialog.destroy ();
@@ -546,7 +546,7 @@
 
     private void entry_selected_cb (string? username)
     {
-        UnityGreeter.set_state ("last-user", username);
+        UnityGreeter.singleton.set_state ("last-user", username);
         if (selected_entry is UserPromptBox)
             session = (selected_entry as UserPromptBox).session;
         else
@@ -680,7 +680,7 @@
                         string[] email_domains;
                         try
                         {
-                            if (UnityGreeter.test_mode)
+                            if (UnityGreeter.singleton.test_mode)
                                 email_domains = { "canonical.com", "ubuntu.org", "candy.com", "urban.net" };
                             else
                                 yield remote_login_service.get_cached_domains_for_server (url, out email_domains);
@@ -791,10 +791,10 @@
 
         foreach (var response in responses)
         {
-            if (UnityGreeter.test_mode)
+            if (UnityGreeter.singleton.test_mode)
                 test_respond (response);
             else
-                UnityGreeter.greeter.respond (response);
+                UnityGreeter.singleton.respond (response);
         }
     }
 
@@ -803,10 +803,10 @@
         debug ("Start session for %s", selected_entry.id);
 
         var is_authenticated = false;
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             is_authenticated = test_is_authenticated;
         else
-            is_authenticated = UnityGreeter.greeter.is_authenticated;
+            is_authenticated = UnityGreeter.singleton.is_authenticated();
 
         /* Finish authentication (again) or restart it */
         if (is_authenticated)
@@ -822,13 +822,13 @@
     {
         var session_chooser = new SessionList (background, menubar, session, default_session);
         session_chooser.session_clicked.connect (session_clicked_cb);
-        UnityGreeter.push_list (session_chooser);
+        UnityGreeter.singleton.push_list (session_chooser);
     }
 
     private void session_clicked_cb (string session)
     {
         this.session = session;
-        UnityGreeter.pop_list ();
+        UnityGreeter.singleton.pop_list ();
     }
 
     private Gdk.Pixbuf? get_badge ()
@@ -851,7 +851,7 @@
 
     private bool is_supported_remote_session (string session_internal_name)
     {
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             return session_internal_name == "rdp";
 
         var found = false;
@@ -893,13 +893,13 @@
 
     private void fill_list ()
     {
-        if (UnityGreeter.test_mode)
+        if (UnityGreeter.singleton.test_mode)
             test_fill_list ();
         else
         {
-            default_session = UnityGreeter.greeter.default_session_hint;
-            always_show_manual = UnityGreeter.greeter.show_manual_login_hint;
-            if (!UnityGreeter.greeter.hide_users_hint)
+            default_session = UnityGreeter.singleton.default_session_hint ();
+            always_show_manual = UnityGreeter.singleton.show_manual_login_hint ();
+            if (!UnityGreeter.singleton.hide_users_hint ())
             {
                 var users = LightDM.UserList.get_instance ();
                 users.user_added.connect (user_added_cb);
@@ -909,15 +909,15 @@
                     user_added_cb (user);
             }
 
-            if (UnityGreeter.greeter.has_guest_account_hint)
+            if (UnityGreeter.singleton.has_guest_account_hint ())
             {
                 debug ("Adding guest account entry");
                 offer_guest = true;
             }
 
-            var last_user = UnityGreeter.get_state ("last-user");
-            if (UnityGreeter.greeter.select_user_hint != null)
-                set_active_entry (UnityGreeter.greeter.select_user_hint);
+            var last_user = UnityGreeter.singleton.get_state ("last-user");
+            if (UnityGreeter.singleton.select_user_hint () != null)
+                set_active_entry (UnityGreeter.singleton.select_user_hint ());
             else if (last_user != null)
                 set_active_entry (last_user);
         }
@@ -956,24 +956,24 @@
             {
                 Gtk.Entry field = current_remote_fields.get ("username") as Gtk.Entry;
                 var answer = field != null ? field.text : "";
-                UnityGreeter.greeter.respond (answer);
+                UnityGreeter.singleton.respond (answer);
             }
             else if (text == "password:")
             {
                 Gtk.Entry field = current_remote_fields.get ("password") as Gtk.Entry;
                 var answer = field != null ? field.text : "";
-                UnityGreeter.greeter.respond (answer);
+                UnityGreeter.singleton.respond (answer);
             }
             else if (text == "remote host:")
             {
                 var answer = url_from_remote_loding_server_list_name (selected_entry.id);
-                UnityGreeter.greeter.respond (answer);
+                UnityGreeter.singleton.respond (answer);
             }
             else if (text == "domain:")
             {
                 Gtk.Entry field = current_remote_fields.get ("domain") as Gtk.Entry;
                 var answer = field != null ? field.text : "";
-                UnityGreeter.greeter.respond (answer);
+                UnityGreeter.singleton.respond (answer);
             }
         }
         else
@@ -1074,7 +1074,7 @@
             return false;
         });
 
-        var last_user = UnityGreeter.get_state ("last-user");
+        var last_user = UnityGreeter.singleton.get_state ("last-user");
         if (last_user != null)
             set_active_entry (last_user);
 

=== added directory 'tests'
=== added file 'tests/Makefile.am'
--- tests/Makefile.am	1970-01-01 00:00:00 +0000
+++ tests/Makefile.am	2012-09-12 14:04:20 +0000
@@ -0,0 +1,63 @@
+# -*- Mode: Automake; indent-tabs-mode: t; tab-width: 4 -*-
+
+check_PROGRAMS = unity-greeter-test
+
+check: unity-greeter-test
+	xvfb-run dbus-launch ./unity-greeter-test
+
+unity_greeter_test_SOURCES = \
+	test.vala \
+	test-list.vala \
+	test-main-window.vala \
+	menubar.vala \
+	unity-greeter.vala \
+	../src/user-list.vala \
+	../src/greeter-list.vala \
+	../src/remote-login-service.vala \
+	../src/background.vala \
+	../src/email-autocompleter.vala \
+	../src/config.vapi \
+	../src/fixes.vapi \
+	../src/animate-timer.vala \
+	../src/indicator.vapi \
+	../src/fadable.vala \
+	../src/fadable-box.vala \
+	../src/dash-box.vala \
+	../src/user-prompt-box.vala \
+	../src/fading-label.vala \
+	../src/cached-image.vala \
+	../src/dash-entry.vala \
+	../src/dash-button.vala \
+	../src/prompt-box.vala \
+	../src/session-list.vala \
+	../src/main-window.vala \
+	../src/list-stack.vala \
+	../src/settings.vala
+
+
+unity_greeter_test_CFLAGS = \
+	$(UNITY_GREETER_CFLAGS) \
+	$(WARN_CFLAGS) \
+	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\" \
+	-DLOCALEDIR=\""$(localedir)"\" \
+	-DVERSION=\"$(VERSION)\" \
+	-DCONFIG_FILE=\""$(sysconfdir)/lightdm/unity-greeter.conf"\" \
+	-DPKGDATADIR=\""$(pkgdatadir)"\" \
+	-DINDICATORDIR=\""$(INDICATORDIR)"\"
+
+unity_greeter_test_VALAFLAGS = \
+	--pkg posix \
+	--pkg gtk+-3.0 \
+	--pkg gdk-x11-3.0 \
+	--pkg gio-unix-2.0 \
+	--pkg x11 \
+	--pkg liblightdm-gobject-1 \
+	--pkg libcanberra \
+	--pkg gio-2.0 \
+	--target-glib 2.32
+
+unity_greeter_test_LDADD = \
+	$(UNITY_GREETER_LIBS)
+
+DISTCLEANFILES = \
+	Makefile.in

=== added file 'tests/menubar.vala'
--- tests/menubar.vala	1970-01-01 00:00:00 +0000
+++ tests/menubar.vala	2012-09-12 14:04:20 +0000
@@ -0,0 +1,35 @@
+/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
+ *
+ * Copyright (C) 2012 Canonical Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+public class MenuBar : Gtk.MenuBar
+{
+    public static const int HEIGHT = 32;
+    public bool high_contrast { get; private set; default = false; }
+
+    public MenuBar (Background bg, Gtk.AccelGroup ag)
+    {
+    }
+
+    public void set_layouts (List <LightDM.Layout> layouts)
+    {
+    }
+
+    public void set_keyboard_state ()
+    {
+    }
+}

=== added file 'tests/test-list.vala'
--- tests/test-list.vala	1970-01-01 00:00:00 +0000
+++ tests/test-list.vala	2012-09-12 14:04:20 +0000
@@ -0,0 +1,18 @@
+
+public class TestList : UserList
+{
+    public TestList (Background bg, MenuBar mb)
+    {
+        Object (background: bg, menubar: mb);
+    }
+
+    public uint num_entries ()
+    {
+        return entries.length();
+    }
+
+    public bool is_scrolling ()
+    {
+        return mode == Mode.SCROLLING;
+    }
+}
\ No newline at end of file

=== added file 'tests/test-main-window.vala'
--- tests/test-main-window.vala	1970-01-01 00:00:00 +0000
+++ tests/test-main-window.vala	2012-09-12 14:04:20 +0000
@@ -0,0 +1,12 @@
+
+public class TestMainWindow : MainWindow
+{
+    public TestMainWindow ()
+    {
+    }
+
+    public Background get_background ()
+    {
+        return get_child() as Background;
+    }
+}

=== added file 'tests/test.vala'
--- tests/test.vala	1970-01-01 00:00:00 +0000
+++ tests/test.vala	2012-09-12 14:04:20 +0000
@@ -0,0 +1,690 @@
+
+public class Test
+{
+    private static MainWindow setup ()
+    {
+        TestMainWindow main_window = new TestMainWindow ();
+        var list = new TestList (main_window.get_background (), main_window.menubar);
+        main_window.push_list (list);
+        main_window.show_all();
+        // Make sure we are really shown
+        process_events ();
+
+        return main_window;
+    }
+
+    private static void process_events ()
+    {
+        while (Gtk.events_pending ())
+            Gtk.main_iteration ();
+    }
+
+    private static void wait_for_scrolling_end (TestList list)
+    {
+        while (list.is_scrolling ())
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+    }
+
+    // BEGIN This group of functions asume email/password for remote directory servers
+    private static DashEntry remote_directory_entry_email_field (TestList list)
+    {
+        var fixed = list.selected_entry.get_child() as Gtk.Fixed;
+        var grid = fixed.get_children().nth_data(1) as Gtk.Grid;
+        return grid.get_child_at(1, 1) as DashEntry;
+    }
+
+    private static DashEntry remote_directory_entry_password_field (TestList list)
+    {
+        var fixed = list.selected_entry.get_child() as Gtk.Fixed;
+        var grid = fixed.get_children().nth_data(1) as Gtk.Grid;
+        return grid.get_child_at(1, 2) as DashEntry;
+    }
+    // END This group of functions asume email/password for remote directory servers
+
+    // BEGIN This group of functions asume domain/username/password for remote login servers
+    private static DashEntry remote_login_entry_domain_field (TestList list)
+    {
+        var fixed = list.selected_entry.get_child() as Gtk.Fixed;
+        var grid = fixed.get_children().nth_data(1) as Gtk.Grid;
+        return grid.get_child_at(1, 1) as DashEntry;
+    }
+
+    private static DashEntry remote_login_entry_username_field (TestList list)
+    {
+        var fixed = list.selected_entry.get_child() as Gtk.Fixed;
+        var grid = fixed.get_children().nth_data(1) as Gtk.Grid;
+        return grid.get_child_at(1, 2) as DashEntry;
+    }
+
+    private static DashEntry remote_login_entry_password_field (TestList list)
+    {
+        var fixed = list.selected_entry.get_child() as Gtk.Fixed;
+        var grid = fixed.get_children().nth_data(1) as Gtk.Grid;
+        return grid.get_child_at(1, 3) as DashEntry;
+    }
+    // BEGIN This group of functions asume domain/username/password for remote login servers
+
+    private static void do_scroll (TestList list, GreeterList.ScrollTarget direction)
+    {
+        process_events ();
+        switch (direction)
+        {
+            case GreeterList.ScrollTarget.START:
+                inject_key (list, Gdk.Key.Page_Up);
+            break;
+            case GreeterList.ScrollTarget.END:
+                inject_key (list, Gdk.Key.Page_Down);
+            break;
+            case GreeterList.ScrollTarget.UP:
+                inject_key (list, Gdk.Key.Up);
+            break;
+            case GreeterList.ScrollTarget.DOWN:
+                inject_key (list, Gdk.Key.Down);
+            break;
+        }
+        wait_for_scrolling_end (list);
+    }
+
+    private static void scroll_to_remote_login (TestList list)
+    {
+        do_scroll (list, GreeterList.ScrollTarget.END);
+        while (list.selected_entry.id == "*guest")
+        {
+            do_scroll (list, GreeterList.ScrollTarget.END);
+            process_events ();
+            Posix.usleep (10000);
+        }
+    }
+
+    private static void inject_key (Gtk.Widget w, int keyval)
+    {
+        // Make sure everything is flushed
+        process_events ();
+
+        Gdk.KeymapKey[] keys;
+
+        bool success = Gdk.Keymap.get_default ().get_entries_for_keyval (keyval, out keys);
+        GLib.assert (success);
+        Gdk.Event event = new Gdk.Event(Gdk.EventType.KEY_PRESS);
+        event.key.window = w.get_parent_window ();
+        event.key.hardware_keycode = (int16)keys[0].keycode;
+        event.key.keyval = keyval;
+        event.set_device(Gdk.Display.get_default ().get_device_manager ().get_client_pointer ());
+        event.key.time = Gdk.CURRENT_TIME;
+
+        Gtk.main_do_event (event);
+    }
+
+    private static void wait_for_focus (Gtk.Widget w)
+    {
+        while (!w.has_focus)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+    }
+
+    public static void simple_navigation ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        GLib.assert (list.num_entries() == 29);
+
+        // Make sure we are at the beginning of the list
+        do_scroll (list, GreeterList.ScrollTarget.START);
+        GLib.assert (list.selected_entry.id == "active");
+
+        // Scrolling up does nothing
+        do_scroll (list, GreeterList.ScrollTarget.UP);
+        GLib.assert (list.selected_entry.id == "active");
+
+        // Scrolling down works
+        do_scroll (list, GreeterList.ScrollTarget.DOWN);
+        GLib.assert (list.selected_entry.id == "auth-error");
+
+        // Remote Login is at the end;
+        do_scroll (list, GreeterList.ScrollTarget.END);
+        GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+
+        mw.hide ();
+    }
+
+    public static void remote_login ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+        GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+        GLib.assert (!list.selected_entry.has_errors);
+
+        // If we answer without filling in any field -> error
+        list.selected_entry.respond ({});
+        GLib.assert (list.selected_entry.has_errors);
+
+        // Go to first and back to last to clear the error
+        do_scroll (list, GreeterList.ScrollTarget.START);
+        do_scroll (list, GreeterList.ScrollTarget.END);
+        GLib.assert (!list.selected_entry.has_errors);
+
+        // Fill in a valid email and password
+        // Check there is no error and we moved to the last logged in server
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+        wait_for_scrolling_end (list);
+
+        // Go back to the remote_directory entry and write the same password but an invalid email
+        // Check there is error and we did not move anywhere
+        while (!list.selected_entry.id.has_prefix("*remote_directory*http://crazyurl.com"))
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+        email = remote_directory_entry_email_field (list);
+        pwd = remote_directory_entry_password_field (list);
+        email.text = "a @ foobar";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        GLib.assert (list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+
+        mw.hide ();
+    }
+
+    public static void remote_login_servers_updated_signal ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay1";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+
+        bool done = false;
+        // The delay1 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If the directory server where were browsing disappears the login servers are removed too
+                // and we get moved to the new directory server
+                wait_for_scrolling_end (list);
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://internalcompayserver.com");
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_servers_updated_signal_focus_not_in_remote_server ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay1";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+        wait_for_scrolling_end (list);
+
+        while (list.selected_entry.id.has_prefix("*remote_"))
+        {
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+        }
+        string nonRemoteEntry = list.selected_entry.id;
+
+        bool done = false;
+        // The delay1 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If we were not in a remote entry we are not moved even if the directory servers change
+                // Moving down we find the new directory server
+                GLib.assert (list.selected_entry.id == nonRemoteEntry);
+                do_scroll (list, GreeterList.ScrollTarget.DOWN);
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://internalcompayserver.com");
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_login_servers_updated_signal ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay2";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+
+        bool done = false;
+        // The delay2 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If the login server we were disappears we get moved to a different one
+                wait_for_scrolling_end (list);
+                GLib.assert (list.selected_entry.id == "*remote_login*http://megacoolrdpserver.com");
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_login_servers_updated_signal_focus_not_in_removed_server ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay2";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+
+        // Move to a server that won't be removed
+        while (list.selected_entry.id != "*remote_login*http://coolrdpserver.com")
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+
+        bool done = false;
+        // The delay2 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If the login server we were did not disappear we are still in the same one
+                wait_for_scrolling_end (list);
+                GLib.assert (list.selected_entry.id == "*remote_login*http://coolrdpserver.com");
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_remote_login_changed_signal ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay3";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+
+        bool done = false;
+        // The delay3 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If the remote login details change while on one of its servers the login servers are removed
+                // and we get moved to the directory server
+                wait_for_scrolling_end (list);
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+
+                do_scroll (list, GreeterList.ScrollTarget.DOWN); // There are no server to log in
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_remote_login_changed_signalfocus_not_in_changed_server ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "delay3";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+        wait_for_scrolling_end (list);
+
+        while (list.selected_entry.id.has_prefix("*remote_"))
+        {
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+        }
+        string nonRemoteEntry = list.selected_entry.id;
+
+        bool done = false;
+        // The delay3 code triggers at 5 seconds
+        Timeout.add (5250, () =>
+            {
+                // If we were not in a remote entry we are not moved when we are asked to reauthenticate
+                // What happens is that the login servers of that directory server get removed
+                // Moving down we find the new directory server
+                GLib.assert (list.selected_entry.id == nonRemoteEntry);
+                do_scroll (list, GreeterList.ScrollTarget.DOWN);
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+
+                do_scroll (list, GreeterList.ScrollTarget.DOWN); // There are no server to log in
+                GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+                done = true;
+                return false;
+            }
+        );
+
+        while (!done)
+        {
+            process_events ();
+            Posix.usleep (10000);
+        }
+
+        mw.hide ();
+    }
+
+    public static void remote_login_authentication ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+        GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+        GLib.assert (!list.selected_entry.has_errors);
+
+        // Fill in a valid email and password
+        // Check there is no error and we moved to the last logged in server
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+        wait_for_scrolling_end (list);
+
+        UnityGreeter.singleton.session_started = false;
+        pwd = remote_login_entry_password_field (list);
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        GLib.assert (UnityGreeter.singleton.session_started);
+
+        mw.hide ();
+    }
+
+    public static void remote_login_cancel_authentication ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+        GLib.assert (list.selected_entry.id == "*remote_directory*http://crazyurl.com");
+        GLib.assert (!list.selected_entry.has_errors);
+
+        // Fill in a valid email and password
+        // Check there is no error and we moved to the last logged in server
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        GLib.assert (!list.selected_entry.has_errors);
+        GLib.assert (list.selected_entry.id == "*remote_login*http://rdpdefaultusername2.com");
+        wait_for_scrolling_end (list);
+
+        UnityGreeter.singleton.session_started = false;
+        pwd = remote_login_entry_password_field (list);
+        pwd.text = "delay";
+        pwd.activate ();
+        GLib.assert (!list.sensitive); // We are not sensitive because we are waiting for servers answer
+        GLib.assert (pwd.did_respond); // We are showing the spinner
+        list.cancel_authentication ();
+        pwd = remote_login_entry_password_field (list);
+        GLib.assert (list.sensitive); // We are sensitive again because we cancelled the login
+        GLib.assert (!pwd.did_respond); // We are not showing the spinner anymore
+
+        mw.hide ();
+    }
+
+    public static void email_autocomplete ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        var email = remote_directory_entry_email_field (list);
+
+        wait_for_focus (email);
+
+        GLib.assert (email.text.length == 0);
+
+        inject_key(email, Gdk.Key.a);
+        GLib.assert (email.text == "a");
+
+        inject_key(email, Gdk.Key.at);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.u);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.r);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.BackSpace);
+        GLib.assert (email.text == "a@ur");
+
+        inject_key(email, Gdk.Key.BackSpace);
+        GLib.assert (email.text == "a@u");
+
+        inject_key(email, Gdk.Key.BackSpace);
+        GLib.assert (email.text == "a@");
+
+        inject_key(email, Gdk.Key.c);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.a);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.n);
+        GLib.assert (email.text == "[e-mail]");
+
+        inject_key(email, Gdk.Key.d);
+        GLib.assert (email.text == "[e-mail]");
+
+        mw.hide ();
+    }
+
+    public static void greeter_communcation ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        // Fill in a valid email and password
+        // Check there is no error and we moved to the last logged in server
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        wait_for_scrolling_end (list);
+
+        while (list.selected_entry.id != "*remote_login*http://coolrdpserver.com")
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+
+        var domain = remote_login_entry_domain_field (list);
+        var username = remote_login_entry_username_field (list);
+        pwd = remote_login_entry_password_field (list);
+        domain.text = "foo";
+        username.text = "bar";
+        pwd.text = "foobar";
+
+        UnityGreeter.singleton.show_prompt("remote login:", LightDM.PromptType.QUESTION);
+        GLib.assert (UnityGreeter.singleton.last_respond_response == username.text);
+        UnityGreeter.singleton.show_prompt("remote host:", LightDM.PromptType.QUESTION);
+        GLib.assert (UnityGreeter.singleton.last_respond_response == "http://coolrdpserver.com");
+        UnityGreeter.singleton.show_prompt("domain:", LightDM.PromptType.QUESTION);
+        GLib.assert (UnityGreeter.singleton.last_respond_response == domain.text);
+        UnityGreeter.singleton.show_prompt("password:", LightDM.PromptType.SECRET);
+        GLib.assert (UnityGreeter.singleton.last_respond_response == pwd.text);
+
+        mw.hide ();
+    }
+
+    public static void unsupported_server_type ()
+    {
+        MainWindow mw = setup ();
+        TestList list = mw.stack.top () as TestList;
+
+        // Wait until remote login appears
+        scroll_to_remote_login (list);
+
+        // Fill in a valid email and password
+        // Check there is no error and we moved to the last logged in server
+        var email = remote_directory_entry_email_field (list);
+        var pwd = remote_directory_entry_password_field (list);
+        email.text = "[e-mail]";
+        pwd.text = "password";
+        list.selected_entry.respond ({});
+        wait_for_scrolling_end (list);
+
+        while (list.selected_entry.id != "*remote_login*http://notsupportedserver.com")
+            do_scroll (list, GreeterList.ScrollTarget.UP);
+
+        GLib.assert (list.selected_entry.has_errors);
+        GLib.assert (!list.selected_entry.sensitive);
+
+        mw.hide ();
+    }
+
+    static void setup_gsettings()
+    {
+        try
+        {
+            var dir = GLib.DirUtils.make_tmp ("unity-greeter-test-XXXXXX");
+
+            var schema_dir = Path.build_filename(dir, "share", "glib-2.0", "schemas");
+            DirUtils.create_with_parents(schema_dir, 0700);
+
+            var data_dirs = Environment.get_variable("XDG_DATA_DIRS");
+            Environment.set_variable("XDG_DATA_DIRS", "%s:%s".printf(Path.build_filename(dir, "share"), data_dirs), true);
+
+            if (Posix.system("cp ../data/com.canonical.unity-greeter.gschema.xml %s".printf(schema_dir)) != 0)
+                warning("Could not copy schema to %s", schema_dir);
+
+            if (Posix.system("glib-compile-schemas %s".printf(schema_dir)) != 0)
+                warning("Could not compile schemas in %s", schema_dir);
+
+            Environment.set_variable("GSETTINGS_BACKEND", "memory", true);
+        }
+        catch (Error e)
+        {
+            debug ("Error setting up gsettings: %s", e.message);
+        }
+    }
+
+    public static int main (string[] args)
+    {
+        Gtk.test_init(ref args);
+
+        setup_gsettings ();
+
+        UnityGreeter.singleton = new UnityGreeter();
+        UnityGreeter.singleton.test_mode = true;
+
+        GLib.Test.add_func ("/Simple Navigation", simple_navigation);
+        GLib.Test.add_func ("/Remote Login", remote_login);
+        GLib.Test.add_func ("/Remote Login with Servers Updated signal", remote_login_servers_updated_signal);
+        GLib.Test.add_func ("/Remote Login with Servers Updated signal and not in remote server", remote_login_servers_updated_signal_focus_not_in_remote_server);
+        GLib.Test.add_func ("/Remote Login with Login Servers Updated signal", remote_login_login_servers_updated_signal);
+        GLib.Test.add_func ("/Remote Login with Login Servers Updated signal and not in removed server", remote_login_login_servers_updated_signal_focus_not_in_removed_server);
+        GLib.Test.add_func ("/Remote Login with Remote Login Changed signal", remote_login_remote_login_changed_signal);
+        GLib.Test.add_func ("/Remote Login with Remote Login Changed signal and not in changed server", remote_login_remote_login_changed_signalfocus_not_in_changed_server);
+        GLib.Test.add_func ("/Remote Login authentication", remote_login_authentication);
+        GLib.Test.add_func ("/Remote Login cancel authentication", remote_login_cancel_authentication);
+        GLib.Test.add_func ("/Email Autocomplete", email_autocomplete);
+        GLib.Test.add_func ("/Greeter Communication", greeter_communcation);
+        GLib.Test.add_func ("/Unsupported server type", unsupported_server_type);
+
+        return GLib.Test.run();
+    }
+
+}

=== added file 'tests/unity-greeter.vala'
--- tests/unity-greeter.vala	1970-01-01 00:00:00 +0000
+++ tests/unity-greeter.vala	2012-09-12 14:04:20 +0000
@@ -0,0 +1,128 @@
+/* -*- Mode: Vala; indent-tabs-mode: nil; tab-width: 4 -*-
+ *
+ * Copyright (C) 2011 Canonical Ltd
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Robert Ancell <[e-mail]>
+ */
+
+public const int grid_size = 40;
+
+public class UnityGreeter
+{
+    public static UnityGreeter singleton;
+
+    public signal void show_message (string text, LightDM.MessageType type);
+    public signal void show_prompt (string text, LightDM.PromptType type);
+    public signal void authentication_complete ();
+
+    public bool test_mode = false;
+    public bool session_started = false;
+    public string last_respond_response;
+
+    public bool is_authenticated ()
+    {
+        return false;
+    }
+
+    public void authenticate (string? userid = null)
+    {
+    }
+
+    public void authenticate_as_guest ()
+    {
+    }
+
+    public void authenticate_remote (string? session, string? userid)
+    {
+    }
+
+    public void cancel_authentication ()
+    {
+    }
+
+    public void respond (string response)
+    {
+        last_respond_response = response;
+    }
+
+    public string authentication_user ()
+    {
+        return "";
+    }
+
+    public string default_session_hint ()
+    {
+        return "";
+    }
+
+    public string select_user_hint ()
+    {
+        return "";
+    }
+
+    public bool show_manual_login_hint ()
+    {
+        return false;
+    }
+
+    public bool hide_users_hint ()
+    {
+        return false;
+    }
+
+    public bool has_guest_account_hint ()
+    {
+        return false;
+    }
+
+    public void start_session (string? session)
+    {
+        session_started = true;
+    }
+
+    public void push_list (GreeterList widget)
+    {
+    }
+
+    public void pop_list ()
+    {
+    }
+
+    public string? get_state (string key)
+    {
+        return null;
+    }
+
+    public void set_state (string key, string value)
+    {
+    }
+
+    public static LightDM.Layout? get_layout_by_name (string name)
+    {
+        foreach (var layout in LightDM.get_layouts ())
+        {
+            if (layout.name == name)
+                return layout;
+        }
+        return null;
+    }
+
+    public static void add_style_class (Gtk.Widget widget)
+    {
+        /* Add style context class lightdm-user-list */
+        var ctx = widget.get_style_context ();
+        ctx.add_class ("lightdm");
+    }
+}