@Test
public void testHorizontalWinnerIsEqualToWinnerValue() {
int[] cell = {0, 1};
board.setCellValue(cell, 1);
assertEquals(1, GameState.HorizontalWinner(board));
}
@Test
public void testHorizontalWinnerReturnsZeroForNoWinner() {
assertEquals(0, GameState.HorizontalWinner(board));
}