test_efl_anim_interpolator: delete animation event callback on window delete

elementary_test Efl.Animation.Interpolator test performs Invalid
memory access if the window is closed during the animation. This can
lead to elm_test crashing after the main window is closed.

In order to avoid this invalid memory access, when the window gets
deleted we can delete the efl_event_callback so that the event does
not fire while the window is being deleted.

ref T7392

Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Differential Revision: https://phab.enlightenment.org/D7644

src/bin/elementary/test_efl_anim_interpolator.c

@@ -139,6 +139,16 @@ static void
 _win_del_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
    App_Data *ad = data;
+   int i;
+
+   for (i = 0; i < INTERP_NUM; i++)
+     {
+        //Unregister callback called when window deletes
+        efl_event_callback_del(ad->anim_obj[i],
+                               EFL_ANIMATION_PLAYER_EVENT_ENDED,
+                               _anim_ended_cb, ad);
+     }
+
    free(ad);
 }