def test_after_choosing_difficulty_it_is_set_in_game_mode(self):
screen = ChooseDifficultyScreen()
game_mode = GameMode()
self.assertEqual("Medium", game_mode.get_mode())
next_screen = screen.choose_option("Easy", game_mode)
self.assertEqual("Easy", game_mode.get_mode())
self.assertEqual(type(next_screen), ChooseDifficultyScreen)
def test_go_back_returns_to_splash_screen(self):
screen = ChooseDifficultyScreen()
next_screen = screen.choose_option("Go Back", None)
self.assertEqual(type(next_screen), SplashScreen)
