Merge branch 'wip/hadess/power-profile-monitor-portal' into 'main'

gio: Add portal version of GPowerProfileMonitor

See merge request GNOME/glib!2222

docs/reference/gio/meson.build

@@ -66,6 +66,7 @@ if get_option('gtk_doc')
     'gpollfilemonitor.h',
     'gportalsupport.h',
     'gpowerprofilemonitordbus.h',
+    'gpowerprofilemonitorportal.h',
     'gproxyresolverportal.h',
     'gregistrysettingsbackend.h',
     'gresourcefile.h',

gio/giomodule.c

@@ -50,6 +50,7 @@
 #include "gmemorymonitordbus.h"
 #include "gpowerprofilemonitor.h"
 #include "gpowerprofilemonitordbus.h"
+#include "gpowerprofilemonitorportal.h"
 #ifdef G_OS_WIN32
 #include "gregistrysettingsbackend.h"
 #include "giowin32-priv.h"
@@ -1305,6 +1306,7 @@ _g_io_modules_ensure_loaded (void)
       g_type_ensure (g_memory_monitor_dbus_get_type ());
       g_type_ensure (g_memory_monitor_portal_get_type ());
       g_type_ensure (g_network_monitor_portal_get_type ());
+      g_type_ensure (g_power_profile_monitor_portal_get_type ());
       g_type_ensure (g_proxy_resolver_portal_get_type ());
 #endif
 #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1090

gio/gpowerprofilemonitorportal.c

@@ -0,0 +1,182 @@
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright 2021 Red Hat, Inc.
+ *
+ * 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/>.
+ */
+
+#include "config.h"
+
+#include "gpowerprofilemonitor.h"
+#include "gpowerprofilemonitorportal.h"
+#include "gdbuserror.h"
+#include "gdbusproxy.h"
+#include "ginitable.h"
+#include "gioerror.h"
+#include "giomodule-priv.h"
+#include "gportalsupport.h"
+
+#define G_POWER_PROFILE_MONITOR_PORTAL_GET_INITABLE_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), G_TYPE_INITABLE, GInitable))
+
+static void g_power_profile_monitor_portal_iface_init (GPowerProfileMonitorInterface *iface);
+static void g_power_profile_monitor_portal_initable_iface_init (GInitableIface *iface);
+
+typedef enum
+{
+  PROP_POWER_SAVER_ENABLED = 1,
+} GPowerProfileMonitorPortalProperty;
+
+struct _GPowerProfileMonitorPortal
+{
+  GObject parent_instance;
+
+  GDBusProxy *proxy;
+  gulong signal_id;
+  gboolean power_saver_enabled;
+};
+
+G_DEFINE_TYPE_WITH_CODE (GPowerProfileMonitorPortal, g_power_profile_monitor_portal, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE,
+                                                g_power_profile_monitor_portal_initable_iface_init)
+                         G_IMPLEMENT_INTERFACE (G_TYPE_POWER_PROFILE_MONITOR,
+                                                g_power_profile_monitor_portal_iface_init)
+                         _g_io_modules_ensure_extension_points_registered ();
+                         g_io_extension_point_implement (G_POWER_PROFILE_MONITOR_EXTENSION_POINT_NAME,
+                                                         g_define_type_id,
+                                                         "portal",
+                                                         40))
+
+static void
+g_power_profile_monitor_portal_init (GPowerProfileMonitorPortal *portal)
+{
+}
+
+static void
+proxy_properties_changed (GDBusProxy *proxy,
+                          GVariant   *changed_properties,
+                          GStrv       invalidated_properties,
+                          gpointer    user_data)
+{
+  GPowerProfileMonitorPortal *ppm = user_data;
+  gboolean power_saver_enabled;
+
+  if (!g_variant_lookup (changed_properties, "power-saver-enabled", "b", &power_saver_enabled))
+    return;
+
+  if (power_saver_enabled == ppm->power_saver_enabled)
+    return;
+
+  ppm->power_saver_enabled = power_saver_enabled;
+  g_object_notify (G_OBJECT (ppm), "power-saver-enabled");
+}
+
+static void
+g_power_profile_monitor_portal_get_property (GObject    *object,
+                                             guint       prop_id,
+                                             GValue     *value,
+                                             GParamSpec *pspec)
+{
+  GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (object);
+
+  switch ((GPowerProfileMonitorPortalProperty) prop_id)
+    {
+    case PROP_POWER_SAVER_ENABLED:
+      g_value_set_boolean (value, ppm->power_saver_enabled);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static gboolean
+g_power_profile_monitor_portal_initable_init (GInitable     *initable,
+                                              GCancellable  *cancellable,
+                                              GError       **error)
+{
+  GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (initable);
+  GDBusProxy *proxy;
+  gchar *name_owner;
+
+  if (!glib_should_use_portal ())
+    {
+      g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Not using portals");
+      return FALSE;
+    }
+
+  proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
+                                         G_DBUS_PROXY_FLAGS_NONE,
+                                         NULL,
+                                         "org.freedesktop.portal.Desktop",
+                                         "/org/freedesktop/portal/desktop",
+                                         "org.freedesktop.portal.PowerProfileMonitor",
+                                         cancellable,
+                                         error);
+  if (!proxy)
+    return FALSE;
+
+  name_owner = g_dbus_proxy_get_name_owner (proxy);
+
+  if (name_owner == NULL)
+    {
+      g_object_unref (proxy);
+      g_set_error (error,
+                   G_DBUS_ERROR,
+                   G_DBUS_ERROR_NAME_HAS_NO_OWNER,
+                   "Desktop portal not found");
+      return FALSE;
+    }
+
+  g_free (name_owner);
+
+  ppm->signal_id = g_signal_connect (proxy, "g-properties-changed",
+                                     G_CALLBACK (proxy_properties_changed), ppm);
+
+  ppm->proxy = g_steal_pointer (&proxy);
+
+  return TRUE;
+}
+
+static void
+g_power_profile_monitor_portal_finalize (GObject *object)
+{
+  GPowerProfileMonitorPortal *ppm = G_POWER_PROFILE_MONITOR_PORTAL (object);
+
+  g_clear_signal_handler (&ppm->signal_id, ppm->proxy);
+  g_clear_object (&ppm->proxy);
+
+  G_OBJECT_CLASS (g_power_profile_monitor_portal_parent_class)->finalize (object);
+}
+
+static void
+g_power_profile_monitor_portal_class_init (GPowerProfileMonitorPortalClass *nl_class)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (nl_class);
+
+  gobject_class->get_property = g_power_profile_monitor_portal_get_property;
+  gobject_class->finalize  = g_power_profile_monitor_portal_finalize;
+
+  g_object_class_override_property (gobject_class, PROP_POWER_SAVER_ENABLED, "power-saver-enabled");
+}
+
+static void
+g_power_profile_monitor_portal_iface_init (GPowerProfileMonitorInterface *monitor_iface)
+{
+}
+
+static void
+g_power_profile_monitor_portal_initable_iface_init (GInitableIface *iface)
+{
+  iface->init = g_power_profile_monitor_portal_initable_init;
+}

gio/gpowerprofilemonitorportal.h

@@ -0,0 +1,31 @@
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright 2021 Red Hat, Inc.
+ *
+ * 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/>.
+ */
+
+#ifndef __G_POWER_PROFILE_MONITOR_PORTAL_H__
+#define __G_POWER_PROFILE_MONITOR_PORTAL_H__
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_POWER_PROFILE_MONITOR_PORTAL         (g_power_profile_monitor_portal_get_type ())
+G_DECLARE_FINAL_TYPE (GPowerProfileMonitorPortal, g_power_profile_monitor_portal, G, POWER_PROFILE_MONITOR_PORTAL, GObject)
+
+G_END_DECLS
+
+#endif /* __G_POWER_PROFILE_MONITOR_PORTAL_H__ */

gio/meson.build

@@ -383,6 +383,7 @@ if host_system != 'windows'
     'gopenuriportal.c',
     'gmemorymonitorportal.c',
     'gnetworkmonitorportal.c',
+    'gpowerprofilemonitorportal.c',
     'gproxyresolverportal.c',
     'gtrashportal.c',
     'gportalsupport.c',

gio/tests/memory-monitor-dbus.py.in

@@ -66,6 +66,23 @@ try:
             self.p_mock.terminate()
             self.p_mock.wait()
 
+        def assertEventually(self, condition, message=None, timeout=50):
+            '''Assert that condition function eventually returns True.
+
+            Timeout is in deciseconds, defaulting to 50 (5 seconds). message is
+            printed on failure.
+            '''
+            while timeout >= 0:
+                context = GLib.MainContext.default()
+                while context.iteration(False):
+                    pass
+                if condition():
+                    break
+                timeout -= 1
+                time.sleep(0.1)
+            else:
+                self.fail(message or 'timed out waiting for ' + str(condition))
+
         def memory_warning_cb(self, monitor, level):
             self.last_warning = level
             self.main_context.wakeup()
@@ -82,21 +99,11 @@ try:
 
             self.dbusmock.EmitWarning(100)
             # Wait 2 seconds or until warning
-            timeout = 2
-            while timeout > 0 and self.last_warning != 100:
-                time.sleep(0.5)
-                timeout -= 0.5
-                self.main_context.iteration(False)
-            self.assertEqual(self.last_warning, 100)
+            self.assertEventually(self.last_warning == 100, "'100' low-memory warning not received", 20)
 
             self.dbusmock.EmitWarning(255)
             # Wait 2 seconds or until warning
-            timeout = 2
-            while timeout > 0 and self.last_warning != 255:
-                time.sleep(0.5)
-                timeout -= 0.5
-                self.main_context.iteration(False)
-            self.assertEqual(self.last_warning, 255)
+            self.assertEventually(self.last_warning == 255, "'255' low-memory warning not received", 20)
 
 except ImportError as e:
     @unittest.skip("Cannot import %s" % e.name)

gio/tests/memory-monitor-portal.py.in

@@ -31,7 +31,6 @@ try:
 
     dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
 
-    # XDG_DESKTOP_PORTAL_PATH = os.path.expanduser("~/.cache/jhbuild/build/xdg-desktop-portal/xdg-desktop-portal")
     XDG_DESKTOP_PORTAL_PATH = "@libexecdir@/xdg-desktop-portal"
 
     class TestLowMemoryMonitorPortal(dbusmock.DBusTestCase):
@@ -85,6 +84,23 @@ try:
             self.p_mock.terminate()
             self.p_mock.wait()
 
+        def assertEventually(self, condition, message=None, timeout=50):
+            '''Assert that condition function eventually returns True.
+
+            Timeout is in deciseconds, defaulting to 50 (5 seconds). message is
+            printed on failure.
+            '''
+            while timeout >= 0:
+                context = GLib.MainContext.default()
+                while context.iteration(False):
+                    pass
+                if condition():
+                    break
+                timeout -= 1
+                time.sleep(0.1)
+            else:
+                self.fail(message or 'timed out waiting for ' + str(condition))
+
         def portal_memory_warning_cb(self, monitor, level):
             self.last_warning = level
             self.main_context.wakeup()
@@ -101,21 +117,11 @@ try:
 
             self.dbusmock.EmitWarning(100)
             # Wait 2 seconds or until warning
-            timeout = 2
-            while timeout > 0 and self.last_warning != 100:
-                time.sleep(0.5)
-                timeout -= 0.5
-                self.main_context.iteration(False)
-            self.assertEqual(self.last_warning, 100)
+            self.assertEventually(self.last_warning == 100, "'100' low-memory warning not received", 20)
 
             self.dbusmock.EmitWarning(255)
             # Wait 2 seconds or until warning
-            timeout = 2
-            while timeout > 0 and self.last_warning != 255:
-                time.sleep(0.5)
-                timeout -= 0.5
-                self.main_context.iteration(False)
-            self.assertEqual(self.last_warning, 255)
+            self.assertEventually(self.last_warning == 255, "'255' low-memory warning not received", 20)
 
 except ImportError as e:
     @unittest.skip("Cannot import %s" % e.name)

gio/tests/meson.build

@@ -541,27 +541,29 @@ if installed_tests_enabled
   install_subdir('static-link', install_dir : installed_tests_execdir)
   install_data('static-link.py', install_dir : installed_tests_execdir)
 
-  memory_monitor_tests = [
+  monitor_tests = [
     'memory-monitor-dbus',
     'memory-monitor-portal',
+    'power-profile-monitor-dbus',
+    'power-profile-monitor-portal'
   ]
 
-  foreach memory_monitor_test : memory_monitor_tests
+  foreach monitor_test : monitor_tests
     cdata = configuration_data()
     cdata.set('installed_tests_dir', installed_tests_execdir)
-    cdata.set('program', memory_monitor_test + '.py')
+    cdata.set('program', monitor_test + '.py')
     cdata.set('env', '')
     configure_file(
       input: installed_tests_template_tap,
-      output: memory_monitor_test + '.test',
+      output: monitor_test + '.test',
       install_dir: installed_tests_metadir,
       configuration: cdata
     )
     cdata = configuration_data()
     cdata.set('libexecdir', join_paths(glib_prefix, get_option('libexecdir')))
     configure_file(
-      input: memory_monitor_test + '.py.in',
-      output: memory_monitor_test + '.py',
+      input: monitor_test + '.py.in',
+      output: monitor_test + '.py',
       install_dir : installed_tests_execdir,
       configuration: cdata,
     )

gio/tests/power-profile-monitor-dbus.py.in

@@ -0,0 +1,107 @@
+#!/usr/bin/python3
+
+# This program 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 3 of the License, or (at your option) any
+# later version.  See http://www.gnu.org/copyleft/lgpl.html for the full text
+# of the license.
+
+__author__ = 'Bastien Nocera'
+__email__ = 'hadess@hadess.net'
+__copyright__ = '(c) 2019, 2021 Red Hat Inc.'
+__license__ = 'LGPL 3+'
+
+import unittest
+import sys
+import subprocess
+import fcntl
+import os
+import time
+
+import taptestrunner
+
+try:
+    # Do all non-standard imports here so we can skip the tests if any
+    # needed packages are not available.
+    import dbus
+    import dbus.mainloop.glib
+    import dbusmock
+    from gi.repository import GLib
+    from gi.repository import Gio
+
+    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+
+    class TestPowerProfileMonitor(dbusmock.DBusTestCase):
+        '''Test GPowerProfileMonitorDBus'''
+
+        @classmethod
+        def setUpClass(klass):
+            klass.start_system_bus()
+            klass.dbus_con = klass.get_dbus(True)
+
+        def setUp(self):
+            try:
+                Gio.PowerProfileMonitor
+            except AttributeError:
+                raise unittest.SkipTest('Power Profile Monitor not in '
+                                        'introspection data. Requires '
+                                        'GObject-Introspection ≥ 1.63.2') # FIXME version
+            try:
+                (self.p_mock, self.obj_ppd) = self.spawn_server_template(
+                    'power_profiles_daemon', {}, stdout=subprocess.PIPE)
+            except ModuleNotFoundError:
+                raise unittest.SkipTest("power-profiles-daemon dbusmock template not "
+                                        "found. Requires dbusmock > 0.23.1.") # FIXME version
+            # set log to nonblocking
+            flags = fcntl.fcntl(self.p_mock.stdout, fcntl.F_GETFL)
+            fcntl.fcntl(self.p_mock.stdout, fcntl.F_SETFL, flags | os.O_NONBLOCK)
+            self.power_saver_enabled = False
+            self.dbus_props = dbus.Interface(self.obj_ppd, dbus.PROPERTIES_IFACE)
+            self.power_profile_monitor = Gio.PowerProfileMonitor.dup_default()
+            self.power_profile_monitor.connect("notify::power-saver-enabled", self.power_saver_enabled_cb)
+            self.mainloop = GLib.MainLoop()
+            self.main_context = self.mainloop.get_context()
+
+        def tearDown(self):
+            self.p_mock.terminate()
+            self.p_mock.wait()
+
+        def assertEventually(self, condition, message=None, timeout=50):
+            '''Assert that condition function eventually returns True.
+
+            Timeout is in deciseconds, defaulting to 50 (5 seconds). message is
+            printed on failure.
+            '''
+            while timeout >= 0:
+                context = GLib.MainContext.default()
+                while context.iteration(False):
+                    pass
+                if condition():
+                    break
+                timeout -= 1
+                time.sleep(0.1)
+            else:
+                self.fail(message or 'timed out waiting for ' + str(condition))
+
+        def power_saver_enabled_cb(self, spec, data):
+            self.power_saver_enabled = self.power_profile_monitor.get_power_saver_enabled()
+            self.main_context.wakeup()
+
+        def test_power_profile_power_saver_enabled(self):
+            '''power-saver-enabled property'''
+
+            self.assertEqual(self.power_profile_monitor.get_power_saver_enabled(), False)
+            self.dbus_props.Set('net.hadess.PowerProfiles', 'ActiveProfile', dbus.String('power-saver', variant_level=1))
+            self.assertEventually(lambda: self.power_saver_enabled == True, "power-saver didn't become enabled", 10)
+
+            self.dbus_props.Set('net.hadess.PowerProfiles', 'ActiveProfile', dbus.String('balanced', variant_level=1))
+            self.assertEventually(lambda: self.power_saver_enabled == False, "power-saver didn't become disabled", 10)
+
+except ImportError as e:
+    @unittest.skip("Cannot import %s" % e.name)
+    class TestPowerProfileMonitor(unittest.TestCase):
+        def test_power_profile_power_saver_enabled(self):
+            pass
+
+if __name__ == '__main__':
+    unittest.main(testRunner=taptestrunner.TAPTestRunner())

gio/tests/power-profile-monitor-portal.py.in

@@ -0,0 +1,126 @@
+#!/usr/bin/python3
+
+# This program 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 3 of the License, or (at your option) any
+# later version.  See http://www.gnu.org/copyleft/lgpl.html for the full text
+# of the license.
+
+__author__ = 'Bastien Nocera'
+__email__ = 'hadess@hadess.net'
+__copyright__ = '(c) 2021 Red Hat Inc.'
+__license__ = 'LGPL 3+'
+
+import unittest
+import sys
+import subprocess
+import fcntl
+import os
+import time
+
+import taptestrunner
+
+try:
+    # Do all non-standard imports here so we can skip the tests if any
+    # needed packages are not available.
+    import dbus
+    import dbus.mainloop.glib
+    import dbusmock
+    from gi.repository import GLib
+    from gi.repository import Gio
+
+    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+
+    # XDG_DESKTOP_PORTAL_PATH = os.path.expanduser("~/.cache/jhbuild/build/xdg-desktop-portal/xdg-desktop-portal")
+    XDG_DESKTOP_PORTAL_PATH = "@libexecdir@/xdg-desktop-portal"
+
+    class TestPowerProfileMonitorPortal(dbusmock.DBusTestCase):
+        '''Test GPowerProfileMonitorPortal'''
+
+        @classmethod
+        def setUpClass(klass):
+            klass.start_system_bus()
+            klass.dbus_con = klass.get_dbus(True)
+            # Start session bus so that xdg-desktop-portal can run on it
+            klass.start_session_bus()
+
+        def setUp(self):
+            try:
+                Gio.PowerProfileMonitor
+            except AttributeError:
+                raise unittest.SkipTest('Power Profile Monitor not in '
+                                        'introspection data. Requires '
+                                        'GObject-Introspection > 1.69.0')
+            try:
+                (self.p_mock, self.obj_ppd) = self.spawn_server_template(
+                    'power_profiles_daemon', {}, stdout=subprocess.PIPE)
+            except ModuleNotFoundError:
+                raise unittest.SkipTest("power-profiles-daemon dbusmock template not "
+                                        "found. Requires dbusmock > 0.23.1.")
+            # set log to nonblocking
+            flags = fcntl.fcntl(self.p_mock.stdout, fcntl.F_GETFL)
+            fcntl.fcntl(self.p_mock.stdout, fcntl.F_SETFL, flags | os.O_NONBLOCK)
+            self.power_saver_enabled = False
+            self.dbus_props = dbus.Interface(self.obj_ppd, dbus.PROPERTIES_IFACE)
+            try:
+                self.xdp = subprocess.Popen([XDG_DESKTOP_PORTAL_PATH])
+            except FileNotFoundError:
+                raise unittest.SkipTest("xdg-desktop-portal not available")
+
+            try:
+                self.wait_for_bus_object('org.freedesktop.portal.Desktop',
+                                        '/org/freedesktop/portal/desktop')
+            except:
+                raise
+            # subprocess.Popen(['gdbus', 'monitor', '--session', '--dest', 'org.freedesktop.portal.Desktop'])
+
+            os.environ['GTK_USE_PORTAL'] = "1"
+            self.power_profile_monitor = Gio.PowerProfileMonitor.dup_default()
+            assert("GPowerProfileMonitorPortal" in str(self.power_profile_monitor))
+            self.power_profile_monitor.connect("notify::power-saver-enabled", self.power_saver_enabled_cb)
+            self.mainloop = GLib.MainLoop()
+            self.main_context = self.mainloop.get_context()
+
+        def tearDown(self):
+            self.p_mock.terminate()
+            self.p_mock.wait()
+
+        def assertEventually(self, condition, message=None, timeout=50):
+            '''Assert that condition function eventually returns True.
+
+            Timeout is in deciseconds, defaulting to 50 (5 seconds). message is
+            printed on failure.
+            '''
+            while timeout >= 0:
+                context = GLib.MainContext.default()
+                while context.iteration(False):
+                    pass
+                if condition():
+                    break
+                timeout -= 1
+                time.sleep(0.1)
+            else:
+                self.fail(message or 'timed out waiting for ' + str(condition))
+
+        def power_saver_enabled_cb(self, spec, data):
+            self.power_saver_enabled = self.power_profile_monitor.get_power_saver_enabled()
+            self.main_context.wakeup()
+
+        def test_power_profile_power_saver_enabled_portal(self):
+            '''power-saver-enabled property'''
+
+            self.assertEqual(self.power_profile_monitor.get_power_saver_enabled(), False)
+            self.dbus_props.Set('net.hadess.PowerProfiles', 'ActiveProfile', dbus.String('power-saver', variant_level=1))
+            self.assertEventually(lambda: self.power_saver_enabled == True, "power-saver didn't become enabled", 10)
+
+            self.dbus_props.Set('net.hadess.PowerProfiles', 'ActiveProfile', dbus.String('balanced', variant_level=1))
+            self.assertEventually(lambda: self.power_saver_enabled == False, "power-saver didn't become disabled", 10)
+
+except ImportError as e:
+    @unittest.skip("Cannot import %s" % e.name)
+    class TestPowerProfileMonitorPortal(unittest.TestCase):
+        def test_power_profile_power_saver_enabled_portal(self):
+            pass
+
+if __name__ == '__main__':
+    unittest.main(testRunner=taptestrunner.TAPTestRunner())