gistfile1.py

def determine_winner(board):
    """ board takes the form of a String 
        with the indices representing each
        of these squares:
        
          0 | 1 | 2
         ---+---+---
          3 | 4 | 5 
         ---+---+---
          6 | 7 | 8
    """
    return 'X'

def test_board_winner(board, winner):
    if determine_winner(board) is winner:
        print "SUCCESS"
    else:
        print "Expected", winner, "got", determine_winner(board)

test_board_winner("XXXOX OO  ", "X")
test_board_winner("          ", None)
test_board_winner("XO  XO OXX", "X")
test_board_winner(" XOXOXOXO ", "O")