def test_playable_squares():
    engine = SuperTicTacToe()
    opponent = Monkey()
    
    assert_equal(opponent.playable_squares(engine, 0),
        [0,1,2,3,4,5,6,7,8])
    
    engine.move(PLAYER_X, 0, 0)
    
    assert_equal(opponent.playable_squares(engine, 0),
        [1,2,3,4,5,6,7,8])