@Test
    public void testIsEmpty() {
        System.out.println("isEmpty");
        Cell instance = new Cell(0,0);
        boolean expResult = true;
        boolean result = instance.isEmpty();
        assertEquals(expResult, result);
        
        instance.setAnthill("red");
        expResult = false;
        result = instance.isEmpty();
        assertEquals(expResult, result);
    }