def test_initialize_game_state():
    ret = initialize_game_state()
    assert isinstance(ret, np.ndarray)
    assert (ret.dtype == BoardPiece)
    assert (ret.shape == (6, 7))
    assert np.all((ret == NO_PLAYER))
def test_initialize_game_state():
    ret = initialize_game_state()
    assert isinstance(ret, np.ndarray)
    assert (ret.dtype == BoardPiece)
    assert (ret.shape == (6, 7))
    assert np.all((ret == NO_PLAYER))