def _move_turtle(self, action: Action):
turtle = self._find_turtle(action.get_color())
if action.does_move_last_turtle() and not self.board.is_last(turtle):
raise ValueError('Arrow card can move only the last turtle.' +
f'Turtle {turtle} is not one of the last turtles')
self.board.move(turtle, action.get_offset())
def test_does_move_last_turtle_should_return_false_when_card_symbol_is_plus():
action = Action(Card(0, 'RAINBOW', 'PLUS'), 'RED')
actual = action.does_move_last_turtle()
assert not actual
def test_does_move_last_turtle_returns_true_when_card_symbol_is_arrow_arrow():
action = Action(Card(0, 'RAINBOW', 'ARROW_ARROW'), 'RED')
actual = action.does_move_last_turtle()
assert actual