@Test
public void testIfGameIsWonByODiagonalTopRightToBottomLeft() {
TicTacToeGUI board = new TicTacToeGUI();
board.setMarkO(0, 2);
board.setMarkO(1, 1);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 1);
}
board.setMarkO(2, 0);
assertEquals(Mark.O_MARK, board.checkWinner());
}
@Test
public void testIfGameIsWonByOOnMiddleColDown() {
TicTacToeGUI board = new TicTacToeGUI();
board.setMarkO(0, 1);
board.setMarkO(1, 1);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 1);
}
board.setMarkO(2, 1);
assertEquals(Mark.O_MARK, board.checkWinner());
}
@Test
public void testIfGameIsWonByXOnTopRowAcross() {
TicTacToeGUI board = new TicTacToeGUI();
board.setMarkX(0, 0);
board.setMarkX(0, 1);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 1);
}
board.setMarkX(0, 2);
assertEquals(Mark.X_MARK, board.checkWinner());
}
@Test
public void testIfGameIsWonByXDiagonalTopLeftToBottomRightOnLastPossibleMove() {
TicTacToeGUI board = new TicTacToeGUI();
board.setMark(0, 0);
board.setMark(0, 1);
board.setMark(0, 2);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 1);
}
board.setMark(1, 0);
board.setMark(1, 1);
board.setMark(1, 2);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 2);
}
board.setMark(2, 1);
board.setMark(2, 0);
board.setMark(2, 2);
assertEquals(Mark.X_MARK, board.checkWinner());
}
@Test
public void testIfGameIsTiedAndAllSpacesAreBeingUsed() {
TicTacToeGUI board = new TicTacToeGUI();
board.setMark(0, 0);
board.setMark(0, 2);
board.setMark(0, 1);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 1);
}
board.setMark(1, 0);
board.setMark(1, 2);
board.setMark(1, 1);
if (board.checkWinner() != Mark.EMPTY) {
assertEquals(0, 2);
}
board.setMark(2, 0);
board.setMark(2, 2);
board.setMark(2, 1);
assertEquals(Mark.DRAW, board.checkWinner());
}