def _remove_everything(self):
     Gallery.discard_cache()
     self.menu.destroy()
     self.game_board.destroy()
     self.status_bar.destroy()
     try:
         self.ship.destroy()
     except AttributeError:
         pass
 def test_discard_cache(self):
     Gallery._pictures = {"alma": "a", "barack": "b", "citrom": "c"}
     Gallery.discard_cache()
     self.assertDictEqual({}, Gallery._pictures)