tests: Add test for GNotification portal backend

The portal backend for notifications didn't have any tests this adds
add least some. This also adjusts the mock notification server used to
test the GTK backend to allow to test the portal as well.

gio/tests/gnotification-server.c

@@ -22,6 +22,7 @@
 #include "gnotification-server.h"
 
 #include <gio/gio.h>
+#include <glib/gstdio.h>
 
 typedef GObjectClass GNotificationServerClass;
 
@@ -33,10 +34,16 @@ struct _GNotificationServer
   guint name_owner_id;
   guint object_id;
 
+  gchar *backend_name;
+  guint backend_version;
+
   guint is_running;
 
   /* app_ids -> hashtables of notification ids -> a{sv} */
   GHashTable *applications;
+
+  /* notification -> unix_fd_list */
+  GHashTable *unix_fd_lists;
 };
 
 G_DEFINE_TYPE (GNotificationServer, g_notification_server, G_TYPE_OBJECT)
@@ -44,9 +51,27 @@ G_DEFINE_TYPE (GNotificationServer, g_notification_server, G_TYPE_OBJECT)
 enum
 {
   PROP_0,
-  PROP_IS_RUNNING
+  PROP_IS_RUNNING,
+  PROP_BACKEND_NAME,
+  PROP_BACKEND_VERSION
 };
 
+static const gchar *
+get_bus_name (GNotificationServer *server) {
+  if (g_strcmp0 (server->backend_name, "portal") == 0)
+    return "org.freedesktop.portal.Desktop";
+
+  return "org.gtk.Notifications";
+}
+
+static const gchar *
+get_object_path (GNotificationServer *server) {
+  if (g_strcmp0 (server->backend_name, "portal") == 0)
+    return "/org/freedesktop/portal/desktop";
+
+  return "/org/gtk/Notifications";
+}
+
 static GDBusInterfaceInfo *
 org_gtk_Notifications_get_interface (void)
 {
@@ -85,6 +110,52 @@ org_gtk_Notifications_get_interface (void)
   return iface_info;
 }
 
+static GDBusInterfaceInfo *
+org_freedesktop_portal_notification_get_interface (void)
+{
+  static GDBusInterfaceInfo *iface_info;
+
+  if (iface_info == NULL)
+    {
+      GDBusNodeInfo *info;
+      GError *error = NULL;
+
+      info = g_dbus_node_info_new_for_xml (
+        "<node>"
+        "  <interface name='org.freedesktop.portal.Notification'>"
+        "    <method name='AddNotification'>"
+        "      <arg type='s' direction='in' />"
+        "      <arg type='a{sv}' direction='in' />"
+        "    </method>"
+        "    <method name='RemoveNotification'>"
+        "      <arg type='s' direction='in' />"
+        "    </method>"
+        "    <property name='version' type='u' access='read'/>"
+        "  </interface>"
+        "</node>", &error);
+
+      if (info == NULL)
+        g_error ("%s", error->message);
+
+      iface_info = g_dbus_node_info_lookup_interface (info, "org.freedesktop.portal.Notification");
+      g_assert (iface_info);
+
+      g_dbus_interface_info_ref (iface_info);
+      g_dbus_node_info_unref (info);
+    }
+
+  return iface_info;
+}
+
+static GDBusInterfaceInfo *
+get_interface (GNotificationServer *server)
+{
+  if (g_strcmp0 (server->backend_name, "portal") == 0)
+    return org_freedesktop_portal_notification_get_interface ();
+
+  return org_gtk_Notifications_get_interface ();
+}
+
 static void
 g_notification_server_notification_added (GNotificationServer *server,
                                           const gchar         *app_id,
@@ -116,6 +187,8 @@ g_notification_server_notification_removed (GNotificationServer *server,
   notifications = g_hash_table_lookup (server->applications, app_id);
   if (notifications)
     {
+      g_hash_table_remove (server->unix_fd_lists,
+                           g_hash_table_lookup (notifications, notification_id));
       g_hash_table_remove (notifications, notification_id);
       if (g_hash_table_size (notifications) == 0)
         g_hash_table_remove (server->applications, app_id);
@@ -164,56 +237,74 @@ org_gtk_Notifications_method_call (GDBusConnection       *connection,
 }
 
 static void
-g_notification_server_dispose (GObject *object)
+org_freedesktop_portal_notification_method_call (GDBusConnection       *connection,
+                                                 const gchar           *sender,
+                                                 const gchar           *object_path,
+                                                 const gchar           *interface_name,
+                                                 const gchar           *method_name,
+                                                 GVariant              *parameters,
+                                                 GDBusMethodInvocation *invocation,
+                                                 gpointer               user_data)
 {
-  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+  GNotificationServer *server = user_data;
 
-  g_notification_server_stop (server);
+  if (g_str_equal (method_name, "AddNotification"))
-
-  g_clear_pointer (&server->applications, g_hash_table_unref);
-  g_clear_object (&server->connection);
-
-  G_OBJECT_CLASS (g_notification_server_parent_class)->dispose (object);
-}
-
-static void
-g_notification_server_get_property (GObject    *object,
-                                    guint       property_id,
-                                    GValue     *value,
-                                    GParamSpec *pspec)
-{
-  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
-
-  switch (property_id)
     {
-    case PROP_IS_RUNNING:
+      const gchar *notification_id;
-      g_value_set_boolean (value, server->is_running);
+      g_autoptr(GVariant) notification = NULL;
-      break;
+      GUnixFDList* fd_list;
 
-    default:
+      fd_list = g_dbus_message_get_unix_fd_list (g_dbus_method_invocation_get_message (invocation));
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+
+      g_variant_get (parameters, "(&s@a{sv})", &notification_id, &notification);
+
+      if (fd_list)
+        g_hash_table_replace (server->unix_fd_lists, g_variant_ref (notification), g_object_ref (fd_list));
+
+      g_notification_server_notification_added (server, "", notification_id, notification);
+      g_dbus_method_invocation_return_value (invocation, NULL);
+    }
+  else if (g_str_equal (method_name, "RemoveNotification"))
+    {
+      const gchar *notification_id;
+
+      g_variant_get (parameters, "(&s)", &notification_id);
+      g_notification_server_notification_removed (server, "", notification_id);
+      g_dbus_method_invocation_return_value (invocation, NULL);
+    }
+  else
+    {
+      g_dbus_method_invocation_return_dbus_error (invocation, "UnknownMethod", "No such method");
     }
 }
-
+static GVariant *
-static void
+org_freedesktop_portal_notification_get_property (GDBusConnection  *connection,
-g_notification_server_class_init (GNotificationServerClass *class)
+                                                  const gchar      *sender,
+                                                  const gchar      *object_path,
+                                                  const gchar      *interface_name,
+                                                  const gchar      *property_name,
+                                                  GError          **error,
+                                                  gpointer          user_data)
 {
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GNotificationServer *server = user_data;
 
-  object_class->get_property = g_notification_server_get_property;
+  if (g_strcmp0 (property_name, "version") == 0)
-  object_class->dispose = g_notification_server_dispose;
+    return g_variant_new_uint32 (server->backend_version);
 
-  g_object_class_install_property (object_class, PROP_IS_RUNNING,
+  return NULL;
-                                   g_param_spec_boolean ("is-running", "", "", FALSE,
+}
-                                                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
 
-  g_signal_new ("notification-received", G_TYPE_NOTIFICATION_SERVER, G_SIGNAL_RUN_FIRST,
-                0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 3,
-                G_TYPE_STRING, G_TYPE_STRING, G_TYPE_VARIANT);
 
-  g_signal_new ("notification-removed", G_TYPE_NOTIFICATION_SERVER, G_SIGNAL_RUN_FIRST,
+static GDBusInterfaceVTable
-                0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2,
+get_vtable (GNotificationServer *server)
-                G_TYPE_STRING, G_TYPE_STRING);
+{
+  const GDBusInterfaceVTable vtable = {
+    (g_strcmp0 (server->backend_name, "portal") == 0) ? org_freedesktop_portal_notification_method_call : org_gtk_Notifications_method_call,
+    (g_strcmp0 (server->backend_name, "portal") == 0) ? org_freedesktop_portal_notification_get_property : NULL,
+    NULL, { 0 }
+  };
+
+  return vtable;
 }
 
 static void
@@ -221,13 +312,11 @@ g_notification_server_bus_acquired (GDBusConnection *connection,
                                     const gchar     *name,
                                     gpointer         user_data)
 {
-  const GDBusInterfaceVTable vtable = {
-    org_gtk_Notifications_method_call, NULL, NULL, { 0 }
-  };
   GNotificationServer *server = user_data;
+  const GDBusInterfaceVTable vtable = get_vtable (server);
 
-  server->object_id = g_dbus_connection_register_object (connection, "/org/gtk/Notifications",
+  server->object_id = g_dbus_connection_register_object (connection, get_object_path (server),
-                                                         org_gtk_Notifications_get_interface (),
+                                                         get_interface (server),
                                                          &vtable, server, NULL, NULL);
 
   /* register_object only fails if the same object is exported more than once */
@@ -261,13 +350,15 @@ g_notification_server_name_lost (GDBusConnection *connection,
 }
 
 static void
-g_notification_server_init (GNotificationServer *server)
+g_notification_server_constructed (GObject *object)
 {
-  server->applications = g_hash_table_new_full (g_str_hash, g_str_equal,
+
-                                                g_free, (GDestroyNotify) g_hash_table_unref);
+  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+
+  G_OBJECT_CLASS (g_notification_server_parent_class)->constructed (object);
 
   server->name_owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
-                                          "org.gtk.Notifications",
+                                          get_bus_name (server),
                                           G_BUS_NAME_OWNER_FLAGS_NONE,
                                           g_notification_server_bus_acquired,
                                           g_notification_server_name_acquired,
@@ -275,10 +366,119 @@ g_notification_server_init (GNotificationServer *server)
                                           server, NULL);
 }
 
-GNotificationServer *
+static void
-g_notification_server_new (void)
+g_notification_server_dispose (GObject *object)
 {
-  return g_object_new (G_TYPE_NOTIFICATION_SERVER, NULL);
+  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+
+  g_notification_server_stop (server);
+
+  g_clear_pointer (&server->applications, g_hash_table_unref);
+  g_clear_pointer (&server->unix_fd_lists, g_hash_table_unref);
+  g_clear_object (&server->connection);
+  g_clear_pointer (&server->backend_name, g_free);
+
+  G_OBJECT_CLASS (g_notification_server_parent_class)->dispose (object);
+}
+
+static void
+g_notification_server_set_property (GObject      *object,
+                                    guint         property_id,
+                                    const GValue *value,
+                                    GParamSpec   *pspec)
+{
+  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+
+  switch (property_id)
+    {
+    case PROP_BACKEND_NAME:
+      server->backend_name = g_value_dup_string (value);
+      break;
+    case PROP_BACKEND_VERSION:
+      server->backend_version = g_value_get_uint (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+g_notification_server_get_property (GObject    *object,
+                                    guint       property_id,
+                                    GValue     *value,
+                                    GParamSpec *pspec)
+{
+  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+
+  switch (property_id)
+    {
+    case PROP_IS_RUNNING:
+      g_value_set_boolean (value, server->is_running);
+      break;
+    case PROP_BACKEND_NAME:
+      g_value_set_string (value, server->backend_name);
+      break;
+    case PROP_BACKEND_VERSION:
+      g_value_set_uint (value, server->backend_version);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+g_notification_server_class_init (GNotificationServerClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->set_property = g_notification_server_set_property;
+  object_class->get_property = g_notification_server_get_property;
+  object_class->constructed = g_notification_server_constructed;
+  object_class->dispose = g_notification_server_dispose;
+
+  g_object_class_install_property (object_class, PROP_IS_RUNNING,
+                                   g_param_spec_boolean ("is-running", "", "", FALSE,
+                                                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_property (object_class, PROP_BACKEND_NAME,
+                                   g_param_spec_string ("backend-name", "", "", NULL,
+                                                        G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_property (object_class, PROP_BACKEND_VERSION,
+                                   g_param_spec_uint ("backend-version", "", "", 0, G_MAXUINT32, 0,
+                                                      G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
+
+  g_signal_new ("notification-received", G_TYPE_NOTIFICATION_SERVER, G_SIGNAL_RUN_FIRST,
+                0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 3,
+                G_TYPE_STRING, G_TYPE_STRING, G_TYPE_VARIANT);
+
+  g_signal_new ("notification-removed", G_TYPE_NOTIFICATION_SERVER, G_SIGNAL_RUN_FIRST,
+                0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2,
+                G_TYPE_STRING, G_TYPE_STRING);
+}
+
+static void
+g_notification_server_init (GNotificationServer *server)
+{
+  server->applications = g_hash_table_new_full (g_str_hash, g_str_equal,
+                                                g_free, (GDestroyNotify) g_hash_table_unref);
+
+  server->unix_fd_lists = g_hash_table_new_full (g_direct_hash, g_direct_equal,
+                                                (GDestroyNotify) g_variant_unref,
+                                                (GDestroyNotify) g_object_unref);
+  server->backend_version = 0;
+}
+
+GNotificationServer *
+g_notification_server_new (const gchar *backend_name,
+                           guint        backend_version)
+{
+  return g_object_new (G_TYPE_NOTIFICATION_SERVER,
+                       "backend-name", backend_name,
+                       "backend-version", backend_version,
+                       NULL);
 }
 
 void
@@ -321,6 +521,16 @@ g_notification_server_list_applications (GNotificationServer *server)
   return (gchar **) g_hash_table_get_keys_as_array (server->applications, NULL);
 }
 
+GUnixFDList *
+g_notification_server_get_unix_fd_list_for_notification (GNotificationServer *server,
+                                                         GVariant            *notification)
+{
+  g_return_val_if_fail (G_IS_NOTIFICATION_SERVER (server), NULL);
+  g_return_val_if_fail (notification != NULL, NULL);
+
+  return g_hash_table_lookup (server->unix_fd_lists, notification);
+}
+
 gchar **
 g_notification_server_list_notifications (GNotificationServer *server,
                                           const gchar         *app_id)

gio/tests/gnotification-server.h

@@ -23,6 +23,7 @@
 #define __G_NOTIFICATION_SERVER_H__
 
 #include <glib-object.h>
+#include <gio/gunixfdlist.h>
 
 #define G_TYPE_NOTIFICATION_SERVER  (g_notification_server_get_type ())
 #define G_NOTIFICATION_SERVER(o)    (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_NOTIFICATION_SERVER, GNotificationServer))
@@ -32,12 +33,15 @@ typedef struct _GNotificationServer GNotificationServer;
 
 GType                   g_notification_server_get_type                  (void);
 
-GNotificationServer *   g_notification_server_new                       (void);
+GNotificationServer *   g_notification_server_new                       (const gchar *backend_name,
+                                                                         guint        backend_version);
 
 void                    g_notification_server_stop                      (GNotificationServer *server);
 
 gboolean                g_notification_server_get_is_running            (GNotificationServer *server);
 
+GUnixFDList *           g_notification_server_get_unix_fd_list_for_notification (GNotificationServer *server,
+                                                                                 GVariant            *notification);
 gchar **                g_notification_server_list_applications         (GNotificationServer *server);
 
 gchar **                g_notification_server_list_notifications        (GNotificationServer *server,

gio/tests/gnotification.c

@@ -148,7 +148,7 @@ basic (void)
 
   loop = g_main_loop_new (NULL, FALSE);
 
-  server = g_notification_server_new ();
+  server = g_notification_server_new ("gtk", 1);
   g_signal_connect (server, "notification-received", G_CALLBACK (notification_received), &received_count);
   g_signal_connect (server, "notification-removed", G_CALLBACK (notification_removed), &removed_count);
   g_signal_connect (server, "notify::is-running", G_CALLBACK (server_notify_is_running), loop);

gio/tests/meson.build

@@ -528,6 +528,9 @@ if host_machine.system() != 'windows'
       'gnotification' : {
         'extra_sources' : [extra_sources, 'gnotification-server.c'],
       },
+      'portal-notification-backend' : {
+        'extra_sources' : [extra_sources, 'gnotification-server.c'],
+      },
       'gdbus-test-codegen-old' : {
         'source' : 'gdbus-test-codegen.c',
         'extra_sources' : [extra_sources, gdbus_test_codegen_generated, gdbus_test_codegen_generated_interface_info],

gio/tests/portal-notification-backend.c

@@ -0,0 +1,598 @@
+/*
+ * Copyright © 2013 Lars Uebernickel
+ * Copyright © 2024 GNOME Foundation Inc.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Lars Uebernickel <lars@uebernic.de>
+ *          Julian Sparber <jsparber@gnome.org>
+ */
+
+#include <glib.h>
+#include <gio/gunixfdlist.h>
+
+#include "gnotification-server.h"
+#include "gdbus-sessionbus.h"
+
+#define TEST_DATA "some test data"
+
+struct _GNotification
+{
+  GObject parent;
+
+  gchar *title;
+  gchar *body;
+  gchar *markup_body;
+  GIcon *icon;
+  GNotificationSound *sound;
+  GNotificationPriority priority;
+  gchar *category;
+  GNotificationDisplayHintFlags display_hint;
+  GPtrArray *buttons;
+  gchar *default_action;
+  GVariant *default_action_target;
+};
+
+typedef enum
+{
+  SOUND_TYPE_DEFAULT,
+  SOUND_TYPE_FILE,
+  SOUND_TYPE_BYTES,
+  SOUND_TYPE_CUSTOM,
+} SoundType;
+
+struct _GNotificationSound
+{
+  GObject parent;
+
+  SoundType sound_type;
+  union {
+    GFile *file;
+    GBytes *bytes;
+    struct {
+      gchar *action;
+      GVariant *target;
+    } custom;
+  };
+};
+
+typedef struct
+{
+  gchar *label;
+  gchar *purpose;
+  gchar *action_name;
+  GVariant *target;
+} Button;
+
+typedef struct
+{
+  gchar *id;
+  GNotification *notification;
+  GMainLoop *loop;
+} TestData;
+
+static void
+test_data_free (gpointer pointer)
+{
+  TestData *data = pointer;
+
+  g_clear_pointer (&data->id, g_free);
+  g_clear_object (&data->notification);
+  g_main_loop_unref (data->loop);
+}
+
+static void
+send_and_wait (TestData      *data,
+               GApplication  *application,
+               const gchar   *id,
+               GNotification *notification)
+{
+  g_clear_pointer (&data->id, g_free);
+  data->id = g_strdup (id);
+  g_set_object (&data->notification, notification);
+
+  g_application_send_notification (application, id, notification);
+
+  while (g_main_context_iteration (g_main_loop_get_context (data->loop), TRUE))
+    {
+      if (data->id == NULL && data->notification == NULL)
+        {
+          break;
+        }
+    }
+}
+
+static void
+send_and_wait_finish (TestData *data)
+{
+  g_clear_pointer (&data->id, g_free);
+  g_clear_object (&data->notification);
+
+  g_main_context_wakeup (g_main_loop_get_context (data->loop));
+}
+
+static GFile *
+get_test_file (void) {
+  GFile *file = NULL;
+  g_autoptr(GFileIOStream) iostream = NULL;
+  GOutputStream *stream = NULL;
+
+  file = g_file_new_tmp ("notification-testXXXXXX", &iostream, NULL);
+  stream = g_io_stream_get_output_stream (G_IO_STREAM (iostream));
+  g_output_stream_write_all (stream, TEST_DATA, strlen (TEST_DATA), NULL, NULL, NULL);
+  g_output_stream_close (stream, NULL, NULL);
+
+  return file;
+}
+
+static void
+activate_app (GApplication *application,
+              gpointer      user_data)
+{
+  TestData *data = user_data;
+  g_autoptr(GNotification) notification = NULL;
+  g_autoptr(GIcon) icon = NULL;
+  g_autoptr(GBytes) bytes = NULL;
+  g_autoptr(GNotificationSound) sound = NULL;
+  g_autoptr(GFile) file = NULL;
+
+  bytes = g_bytes_new_static (TEST_DATA, strlen (TEST_DATA));
+  file = get_test_file ();
+
+  notification = g_notification_new ("Test");
+  send_and_wait (data, application, "test1", notification);
+
+  notification = g_notification_new ("Test2");
+  send_and_wait (data, application, "test2", notification);
+
+  g_application_withdraw_notification (application, "test1");
+
+  notification = g_notification_new ("Test3");
+  send_and_wait (data, application, "test3", notification);
+
+  notification = g_notification_new ("Test4");
+  icon = g_themed_icon_new ("i-c-o-n");
+  g_notification_set_icon (notification, icon);
+  g_clear_object (&icon);
+  g_notification_set_body (notification, "body");
+  g_notification_set_body_with_markup (notification, "markup-body");
+  g_notification_set_priority (notification, G_NOTIFICATION_PRIORITY_URGENT);
+  g_notification_set_default_action_and_target (notification, "app.action", "i", 42);
+  g_notification_add_button_with_purpose_and_target_value (notification,
+                                                           "label",
+                                                           "x-gnome.purpose",
+                                                           "app.action2",
+                                                           g_variant_new_string ("bla"));
+  g_notification_set_category (notification, "x-gnome.category");
+  g_notification_set_display_hint_flags (notification, G_NOTIFICATION_DISPLAY_HINT_TRANSIENT);
+  send_and_wait (data, application, "test4", notification);
+
+  notification = g_notification_new ("Test5");
+  icon = g_file_icon_new (file);
+  g_notification_set_icon (notification, icon);
+  g_clear_object (&icon);
+  send_and_wait (data, application, "test5", notification);
+
+  notification = g_notification_new ("Test6");
+  icon = g_bytes_icon_new (bytes);
+  g_notification_set_icon (notification, icon);
+  g_clear_object (&icon);
+  send_and_wait (data, application, "test6", notification);
+
+  notification = g_notification_new ("Test7");
+  sound = g_notification_sound_new_default ();
+  g_notification_set_sound (notification, sound);
+  g_clear_object (&sound);
+  send_and_wait (data, application, "test7", notification);
+
+  notification = g_notification_new ("Test8");
+  sound = g_notification_sound_new_from_file (file);
+  g_notification_set_sound (notification, sound);
+  g_clear_object (&sound);
+  send_and_wait (data, application, "test8", notification);
+
+  notification = g_notification_new ("Test9");
+  sound = g_notification_sound_new_from_bytes (bytes);
+  g_notification_set_sound (notification, sound);
+  g_clear_object (&sound);
+  send_and_wait (data, application, "test9", notification);
+
+  notification = g_notification_new ("Test10");
+  sound = g_notification_sound_new_custom ("app.play-custom-sound", g_variant_new_string ("some target"));
+  g_notification_set_sound (notification, sound);
+  g_clear_object (&sound);
+  send_and_wait (data, application, "test10", notification);
+
+  send_and_wait (data, application, NULL, notification);
+
+  g_dbus_connection_flush_sync (g_application_get_dbus_connection (application), NULL, NULL);
+
+  g_assert_true (g_file_delete (file, NULL, NULL));
+  g_main_loop_quit (data->loop);
+}
+
+static void
+notification_received (GNotificationServer *server,
+                       const gchar         *app_id,
+                       const gchar         *notification_id,
+                       GVariant            *notification,
+                       gpointer             user_data)
+{
+  TestData *exp_data = user_data;
+  struct _GNotification *exp_notification;
+
+  g_assert_nonnull (exp_data);
+  exp_notification = (struct _GNotification *)exp_data->notification;
+  g_assert_nonnull (exp_notification);
+
+  if (exp_data->id)
+    g_assert_cmpstr (exp_data->id, ==, notification_id);
+  else
+    g_assert_true (g_dbus_is_guid (notification_id));
+
+  if (exp_notification->title)
+    {
+      const gchar *title;
+      g_assert_true (g_variant_lookup (notification, "title", "&s", &title));
+      g_assert_cmpstr (title, ==, exp_notification->title);
+    }
+
+  if (exp_notification->body && !exp_notification->markup_body)
+    {
+      const gchar *body;
+      g_assert_true (g_variant_lookup (notification, "body", "&s", &body));
+      g_assert_cmpstr (body, ==, exp_notification->body);
+    }
+
+  if (exp_notification->markup_body)
+    {
+      const gchar *body;
+      g_assert_true (g_variant_lookup (notification, "markup-body", "&s", &body));
+      g_assert_cmpstr (body, ==, exp_notification->markup_body);
+    }
+
+  if (exp_notification->icon)
+    {
+      g_autoptr(GVariant) serialized_icon = NULL;
+
+      serialized_icon = g_variant_lookup_value (notification, "icon", NULL);
+      if (G_IS_THEMED_ICON (exp_notification->icon))
+        {
+          g_autoptr(GIcon) icon = NULL;
+
+          icon = g_icon_deserialize (serialized_icon);
+          g_assert_true (g_icon_equal (exp_notification->icon, icon));
+        }
+      else
+        {
+          g_autoptr(GError) error = NULL;
+          g_autoptr(GBytes) bytes = NULL;
+          g_autoptr(GBytes) exp_bytes = NULL;
+          GUnixFDList *fd_list;
+          int fd;
+          int fd_id;
+          gchar *key;
+          g_autoptr(GVariant) handle = NULL;
+          g_autoptr(GMappedFile) mapped = NULL;
+
+          g_assert_true (g_variant_is_of_type (serialized_icon, G_VARIANT_TYPE("(sv)")));
+          g_variant_get (serialized_icon, "(&sv)", &key, &handle);
+          g_assert_cmpstr (key, ==, "file-descriptor");
+
+          fd_list = g_notification_server_get_unix_fd_list_for_notification (server, notification);
+          g_assert_nonnull (fd_list);
+          fd_id = g_variant_get_handle (handle);
+          fd = g_unix_fd_list_get (fd_list, fd_id, &error);
+          g_assert_no_error (error);
+          g_assert_cmpint (fd, >, -1);
+
+          mapped = g_mapped_file_new_from_fd (fd, FALSE, &error);
+          g_assert_no_error (error);
+          bytes = g_mapped_file_get_bytes (mapped);
+
+          if (G_IS_BYTES_ICON (exp_notification->icon))
+            {
+              exp_bytes = g_bytes_ref (g_bytes_icon_get_bytes (G_BYTES_ICON (exp_notification->icon)));
+            }
+          else if (G_IS_FILE_ICON (exp_notification->icon))
+            {
+              GFile *file;
+
+              file = g_file_icon_get_file (G_FILE_ICON (exp_notification->icon));
+              exp_bytes = g_file_load_bytes (file, NULL, NULL, &error);
+              g_assert_no_error (error);
+            }
+          g_assert_true (g_bytes_equal (exp_bytes, bytes));
+        }
+    }
+
+  if (exp_notification->sound)
+    {
+      struct _GNotificationSound *exp_sound = (struct _GNotificationSound *)exp_notification->sound;
+      g_autoptr(GVariant) serialized_sound = NULL;
+      g_autoptr(GError) error = NULL;
+      g_autoptr(GBytes) bytes = NULL;
+
+      serialized_sound = g_variant_lookup_value (notification, "sound", NULL);
+      if (exp_sound->sound_type == SOUND_TYPE_FILE || exp_sound->sound_type == SOUND_TYPE_BYTES)
+        {
+          GUnixFDList *fd_list;
+          int fd;
+          int fd_id;
+          gchar *key;
+          g_autoptr(GVariant) handle = NULL;
+          g_autoptr(GMappedFile) mapped = NULL;
+
+          g_assert_true (g_variant_is_of_type (serialized_sound, G_VARIANT_TYPE("(sv)")));
+          g_variant_get (serialized_sound, "(&sv)", &key, &handle);
+          g_assert_cmpstr (key, ==, "file-descriptor");
+
+          fd_list = g_notification_server_get_unix_fd_list_for_notification (server, notification);
+          g_assert_nonnull (fd_list);
+          fd_id = g_variant_get_handle (handle);
+          fd = g_unix_fd_list_get (fd_list, fd_id, &error);
+          g_assert_no_error (error);
+          g_assert_cmpint (fd, >, -1);
+
+          mapped = g_mapped_file_new_from_fd (fd, FALSE, &error);
+          g_assert_no_error (error);
+          bytes = g_mapped_file_get_bytes (mapped);
+        }
+      else if (exp_sound->sound_type == SOUND_TYPE_DEFAULT)
+        {
+          const char *key;
+
+          g_assert_true (g_variant_is_of_type (serialized_sound, G_VARIANT_TYPE("s")));
+          key = g_variant_get_string (serialized_sound, NULL);
+          g_assert_cmpstr (key, ==, "default");
+        }
+      else if (exp_sound->sound_type == SOUND_TYPE_CUSTOM)
+        {
+          /* The portal uses a button with a specific purpose for custom sound action */
+        }
+      else
+        {
+          g_assert_not_reached ();
+        }
+
+      if (exp_sound->sound_type == SOUND_TYPE_FILE)
+        {
+          g_autoptr(GBytes) exp_bytes = NULL;
+          exp_bytes = g_file_load_bytes (exp_sound->file, NULL, NULL, &error);
+          g_assert_no_error (error);
+          g_assert_true (g_bytes_equal (exp_bytes, bytes));
+        }
+      else if (exp_sound->sound_type == SOUND_TYPE_BYTES)
+        {
+          g_assert_true (g_bytes_equal (exp_sound->bytes, bytes));
+        }
+    }
+  else
+    {
+      const char *key;
+      g_autoptr(GVariant) serialized_sound = NULL;
+
+      serialized_sound = g_variant_lookup_value (notification, "sound", NULL);
+      if (serialized_sound)
+        {
+          g_assert_true (g_variant_is_of_type (serialized_sound, G_VARIANT_TYPE("s")));
+          key = g_variant_get_string (serialized_sound, NULL);
+
+          g_assert_cmpstr (key, ==, "silent");
+        }
+    }
+
+  if (exp_notification->priority)
+  {
+      g_autoptr(GEnumClass) enum_class = NULL;
+      GEnumValue *enum_value;
+      const gchar *priority = NULL;
+      g_assert_true (g_variant_lookup (notification, "priority", "&s", &priority));
+
+      enum_class = g_type_class_ref (G_TYPE_NOTIFICATION_PRIORITY);
+      g_assert_nonnull (enum_class);
+      enum_value = g_enum_get_value_by_nick (enum_class, priority);
+      g_assert_nonnull (enum_value);
+
+      g_assert_true ((GNotificationPriority) enum_value->value == exp_notification->priority);
+    }
+
+  if (exp_notification->display_hint)
+    {
+      g_autoptr(GFlagsClass) flags_class = NULL;
+      GNotificationDisplayHintFlags display_hint = G_NOTIFICATION_DISPLAY_HINT_UPDATE;
+      const gchar** flags = NULL;
+      gsize i;
+      g_assert_true (g_variant_lookup (notification, "display-hint", "^a&s", &flags));
+
+      flags_class = g_type_class_ref (G_TYPE_NOTIFICATION_DISPLAY_HINT_FLAGS);
+      g_assert_nonnull (flags_class);
+
+      for (i = 0; flags[i]; i++)
+        {
+          GFlagsValue *flags_value;
+
+          if (g_strcmp0 (flags[i], "show-as-new") == 0)
+            {
+              display_hint &= ~G_NOTIFICATION_DISPLAY_HINT_UPDATE;
+              continue;
+            }
+
+          flags_value = g_flags_get_value_by_nick (flags_class, flags[i]);
+          g_assert_nonnull (flags_value);
+          display_hint |= flags_value->value;
+        }
+
+      g_assert_true (display_hint == exp_notification->display_hint);
+    }
+
+  if (exp_notification->category)
+    {
+      const gchar *category;
+      g_assert_true (g_variant_lookup (notification, "category", "&s", &category));
+      g_assert_cmpstr (category, ==, exp_notification->category);
+    }
+
+  if (exp_notification->default_action)
+    {
+      const gchar *default_action;
+      g_assert_true (g_variant_lookup (notification, "default-action", "&s", &default_action));
+      g_assert_cmpstr (default_action, ==, exp_notification->default_action);
+    }
+
+  if (exp_notification->default_action_target)
+    {
+      g_autoptr(GVariant) default_action_target = NULL;
+      default_action_target = g_variant_lookup_value (notification, "default-action-target", NULL);
+      g_assert_true (g_variant_equal (default_action_target, exp_notification->default_action_target));
+    }
+
+  // Custom sound is a special system button for the portal
+  if ((exp_notification->buttons && exp_notification->buttons->len > 0) ||
+      (exp_notification->sound && exp_notification->sound->sound_type == SOUND_TYPE_CUSTOM))
+    {
+      gsize i;
+      g_autoptr(GVariant) buttons = NULL;
+      buttons = g_variant_lookup_value (notification, "buttons", G_VARIANT_TYPE("aa{sv}"));
+      g_assert_nonnull (buttons);
+
+      for (i = 0; i < g_variant_n_children (buttons); i++)
+        {
+          Button *exp_button;
+          g_autoptr(GVariant) button = NULL;
+          const gchar *label = NULL;
+          const gchar *purpose = NULL;
+          const gchar *action_name = NULL;
+          g_autoptr(GVariant) action_target = NULL;
+
+          button = g_variant_get_child_value (buttons, i);
+          g_assert_nonnull (button);
+
+          if (g_variant_lookup (button, "purpose", "&s", &purpose) &&
+              g_strcmp0 (purpose, "system.custom-alert") == 0)
+            {
+              g_assert_nonnull (exp_notification->sound);
+              g_assert_false (g_variant_lookup (button, "label", "&s", &label));
+
+              g_assert_true (g_variant_lookup (button, "action", "&s", &action_name));
+              g_assert_cmpstr (action_name, ==, exp_notification->sound->custom.action);
+
+              action_target = g_variant_lookup_value (button, "target", NULL);
+              g_assert_true (g_variant_equal (action_target, exp_notification->sound->custom.target));
+
+              continue;
+            }
+          exp_button = (Button*)g_ptr_array_index (exp_notification->buttons, i);
+          g_assert_nonnull (exp_button);
+
+          if (exp_button->label)
+            {
+              g_assert_true (g_variant_lookup (button, "label", "&s", &label));
+              g_assert_cmpstr (label, ==, exp_button->label);
+            }
+
+          if (exp_button->purpose)
+            {
+              g_assert_true (g_variant_lookup (button, "purpose", "&s", &purpose));
+              g_assert_cmpstr (purpose, ==, exp_button->purpose);
+            }
+
+          if (exp_button->action_name)
+            {
+              g_assert_true (g_variant_lookup (button, "action", "&s", &action_name));
+              g_assert_cmpstr (action_name, ==, exp_button->action_name);
+            }
+
+          action_target = g_variant_lookup_value (button, "target", NULL);
+          g_assert_true (g_variant_equal (action_target, exp_button->target));
+        }
+    }
+
+  send_and_wait_finish (exp_data);
+}
+
+static void
+notification_removed (GNotificationServer *server,
+                      const gchar         *app_id,
+                      const gchar         *notification_id,
+                      gpointer             user_data)
+{
+  gint *count = user_data;
+
+  g_assert_cmpstr (notification_id, ==, "test1");
+
+  (*count)++;
+}
+
+static void
+server_notify_is_running (GObject    *object,
+                          GParamSpec *pspec,
+                          gpointer    user_data)
+{
+  GNotificationServer *server = G_NOTIFICATION_SERVER (object);
+  GApplication *app;
+
+  g_assert_true (g_notification_server_get_is_running (server));
+
+  app = g_application_new ("org.gtk.TestApplication", G_APPLICATION_DEFAULT_FLAGS);
+  g_signal_connect (app, "activate", G_CALLBACK (activate_app), user_data);
+
+  g_application_run (app, 0, NULL);
+
+  g_object_unref (app);
+}
+
+static void
+basic (void)
+{
+  TestData *data;
+  GNotificationServer *server;
+  GMainLoop *loop;
+  gint removed_count = 0;
+
+  session_bus_up ();
+
+  loop = g_main_loop_new (NULL, FALSE);
+
+  data = g_new0 (TestData, 1);
+  data->loop = g_main_loop_ref (loop);
+
+  server = g_notification_server_new ("portal", 2);
+  g_signal_connect (server, "notification-received", G_CALLBACK (notification_received), data);
+  g_signal_connect (server, "notification-removed", G_CALLBACK (notification_removed), &removed_count);
+  g_signal_connect (server, "notify::is-running", G_CALLBACK (server_notify_is_running), data);
+
+  g_main_loop_run (loop);
+
+  test_data_free (data);
+
+  g_assert_cmpint (removed_count, ==, 1);
+
+  g_object_unref (server);
+  g_main_loop_unref (loop);
+  session_bus_down ();
+}
+
+int main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+
+  g_setenv ("GIO_USE_PORTALS", "1", TRUE);
+
+  g_test_add_func ("/portal-notification-backend/basic", basic);
+
+  return g_test_run ();
+}