def test_output_pretty_print_board():
    initialBoard = np.ndarray(shape=(6, 7), dtype=BoardPiece)
    initialBoard.fill(NO_PLAYER)
    ret = pretty_print_board(initialBoard)
    assert (ret != '')
def test_output_pretty_print_board():
    initialBoard = np.ndarray(shape=(6, 7), dtype=BoardPiece)
    initialBoard.fill(NO_PLAYER)
    ret = pretty_print_board(initialBoard)
    assert (ret != )