Add a quick sound test

Just to show that our media infrastructure is up
to playing little beeps and bings.

tests/meson.build

@@ -73,6 +73,7 @@ gtk_tests = [
   ['testprint', ['testprintfileoperation.c']],
   ['testscale'],
   ['testselectionmode'],
+  ['testsounds'],
   ['testspinbutton'],
   ['testtoolbar2'],
   ['testtreechanging'],

tests/testsounds.c

@@ -0,0 +1,68 @@
+#include <gtk/gtk.h>
+
+static void
+ended (GObject *object)
+{
+  g_object_unref (object);
+}
+
+static void
+play (const char *name)
+{
+  char *path;
+  GtkMediaStream *stream;
+
+  path = g_build_filename ("tests", name, NULL);
+
+  stream = gtk_media_file_new_for_filename (path);
+  gtk_media_stream_set_volume (stream, 1.0);
+
+  gtk_media_stream_play (stream);
+
+  g_signal_connect (stream, "notify::ended", G_CALLBACK (ended), NULL);
+
+  g_free (path);
+}
+
+static void
+enter (GtkButton *button)
+{
+  play ("service-login.oga");
+}
+
+static void
+leave (GtkButton *button)
+{
+  play ("service-logout.oga");
+}
+
+int main (int argc, char *argv[])
+{
+  GtkWidget *window;
+  GtkWidget *box;
+  GtkWidget *button;
+
+  gtk_init ();
+
+  window = gtk_window_new ();
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+  gtk_widget_set_halign (box, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (box, GTK_ALIGN_CENTER);
+  gtk_container_add (GTK_CONTAINER (window), box);
+
+  button = gtk_button_new_with_label ("Α");
+  g_signal_connect (button, "clicked", G_CALLBACK (enter), NULL);
+  gtk_container_add (GTK_CONTAINER (box), button);
+
+  button = gtk_button_new_with_label ("Ω");
+  g_signal_connect (button, "clicked", G_CALLBACK (leave), NULL);
+  gtk_container_add (GTK_CONTAINER (box), button);
+
+  gtk_window_present (GTK_WINDOW (window));
+
+  while (1)
+    g_main_context_iteration (NULL, FALSE);
+
+  return 0;
+}