@Test
public void testCellAt() throws InvalidInputException {
Cells cells = mock(Cells.class);
Board board = new Board(cells);
board.cellAt(1, 1);
verify(cells, times(1)).cellAt(1, 1);
}
@Test
public void testPrintBoard() throws InvalidInputException {
Cells cells = mock(Cells.class);
Board board = new Board(cells);
board.printBoard();
verify(cells, times(1)).displayValue();
}
@Test
public void testDigCount() throws InvalidActionException {
Cell cell = new Cell(false, 0);
Cell[][] cells = new Cell[SIZE][SIZE];
for (int i = 0; i < SIZE; i++) for (int j = 0; j < SIZE; j++) cells[i][j] = new Cell(false, 0);
cells[0][0] = cell;
Cells cellsObject = new Cells(cells);
Board board = new Board(cellsObject);
cell.dig();
Assert.assertEquals(board.numberOfDigCell(), 1);
}