make a SoundPlayer interface so we can mock it in the tests

this requires an annoying amount of scaffolding:
1. implement gst and mock classes to implement the SoundPlayer interface
2. modify notifier to take a SoundPlayer argument in its ctor
3. modify service to take a Notifier argument in its ctor instead of instantiating it on its own
4. change main to update the startup steps for player/notifier/service

1 files changed, 94 insertions, 0 deletions

diff --git a/src/sound-player-mock.c b/src/sound-player-mock.c
new file mode 100644
index 0000000..17eff21
--- /dev/null
+++ b/src/sound-player-mock.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2014 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 warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#include "sound-player.h"
+#include "sound-player-mock.h"
+
+enum
+{
+  SIGNAL_URI_PLAYED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+/***
+****  GObject boilerplate
+***/
+
+static void indicator_power_sound_player_interface_init (
+                                IndicatorPowerSoundPlayerInterface * iface);
+
+G_DEFINE_TYPE_WITH_CODE (
+  IndicatorPowerSoundPlayerMock,
+  indicator_power_sound_player_mock,
+  G_TYPE_OBJECT,
+  G_IMPLEMENT_INTERFACE (INDICATOR_TYPE_POWER_SOUND_PLAYER,
+                         indicator_power_sound_player_interface_init))
+
+/***
+****  IndicatorPowerSoundPlayer virtual functions
+***/
+
+static void
+my_play_uri (IndicatorPowerSoundPlayer * self, const gchar * uri)
+{
+  g_signal_emit (self, signals[SIGNAL_URI_PLAYED], 0, uri, NULL);
+}
+
+/***
+****  Instantiation
+***/
+
+static void
+indicator_power_sound_player_mock_class_init (IndicatorPowerSoundPlayerMockClass * klass G_GNUC_UNUSED)
+{
+  signals[SIGNAL_URI_PLAYED] = g_signal_new (
+    "uri-played",
+    G_TYPE_FROM_CLASS(klass),
+    G_SIGNAL_RUN_LAST,
+    G_STRUCT_OFFSET (IndicatorPowerSoundPlayerMockClass, uri_played),
+    NULL, NULL,
+    g_cclosure_marshal_VOID__STRING,
+    G_TYPE_NONE, 1, G_TYPE_STRING);
+}
+
+static void
+indicator_power_sound_player_interface_init (IndicatorPowerSoundPlayerInterface * iface)
+{
+  iface->play_uri = my_play_uri;
+}
+
+static void
+indicator_power_sound_player_mock_init (IndicatorPowerSoundPlayerMock * self G_GNUC_UNUSED)
+{
+}
+
+/***
+****  Public API
+***/
+
+IndicatorPowerSoundPlayer *
+indicator_power_sound_player_mock_new (void)
+{
+  gpointer o = g_object_new (INDICATOR_TYPE_POWER_SOUND_PLAYER_MOCK, NULL);
+
+  return INDICATOR_POWER_SOUND_PLAYER (o);
+}
+