text: #include <gtk/gtk.h>
  
  static void
  test_type (GType t)
  {
    GtkWidget *w;
    AtkObject *a;
  
    if (g_type_is_a (t, GTK_TYPE_WIDGET))
      {
        w = (GtkWidget *)g_object_new (t, NULL);
        a = gtk_widget_get_accessible (w);
  
        g_assert (GTK_IS_ACCESSIBLE (a));
        g_assert (gtk_accessible_get_widget (GTK_ACCESSIBLE (a)) == w);
  
        g_object_unref (w);
      }
  }
  
  int
  main (int argc, char *argv[])
  {
    const GType *tp;
    guint i, n;
  
    gtk_init (&argc, &argv);
  
    tp = gtk_test_list_all_types (&n);
  
    for (i = 0; i < n; i++)
      test_type (tp[i]);
  
    return 0;
  }
  