### Question:
Board { public int getSize() { return this.board.length; } Board(int size); void init(final int difficultyLevel); ReentrantLock getLock(Cell cell); int getSize();  }### Answer:
@Test public void ifCreateNewBoardWithSize10ThenGetSizeShouldBeReturn10() { Board testBoard = new Board(10); assertThat(testBoard.getSize(), is(10)); }