-module(ttt_test).

-include_lib("eunit/include/eunit.hrl").

empty_board_test() ->
  E = ttt:empty_board(),
  ?assertEqual(E, ttt:empty_board()).

moves_board_test() ->
  B0 = ttt:empty_board(),
  {ok, B1} = ttt:move(B0, 'X', 0, 0),
  {ok, B2} = ttt:move(B1, 'X', 0, 1),
  {ok, B3} = ttt:move(B2, 'X', 0, 2),
  ?assertEqual(['X', 'X', 'X', 'E', 'E', 'E', 'E', 'E', 'E'], B3).

simple_test() ->
  R = ttt:who_wins(['X', 'X', 'X', 'E', 'E', 'E', 'E', 'E', 'E']),
  ?assertEqual('X', R).