tic-tac-toe-2.js

describe('minimax', function () {
  var INFINITY = 1.7976931348623157E+10308;
  var N_INFINITY = -1.7976931348623157E+10308;
  var COMPUTER = 1;
  var HUMAN = 2;

  it('should return INFINITY when computer has won', function () {
    var state = [1, 1, 1, -1, -1, -1, -1, 2, 2];
    var board = new Board(state);

    assert.equal(board.minimax(COMPUTER), INFINITY); /* assertion passes */
  })

  it('should return N_INFINITY when human has won', function () {
    var state = [-1, 1, 1, -1, -1, -1, 2, 2, 2];
    var board = new Board(state);

    assert.equal(board.minimax(COMPUTER), N_INFINITY); /* assertion fails */
  })
})