@Test
    public void testGetRock() {
        System.out.println("getRock");
        Cell instance = new Cell(0,0);
        boolean expResult = false;
        boolean result = instance.getRock();
        assertEquals(expResult, result);
        
        instance.setRock(true);
        expResult = true;
        result = instance.getRock();
        assertEquals(expResult, result);
    }