@Test
 public void testName() {
   assertEquals("TTP_SO_10_3_1_25", problem.toString());
 }
 @Test
 public void testNumberOfItems() {
   assertEquals(19, problem.numOfItems());
 }
 @Test
 public void testDistanceFirstAndSecond() {
   assertEquals(3.3660, problem.getMap().get(0, 1), 0.01);
 }
 @Test
 public void testR() {
   assertEquals(13.67, problem.getR(), 0.01);
 }
 @Test
 public void testVelocity() {
   assertEquals(0.1, problem.getMinSpeed(), 0.01);
   assertEquals(1, problem.getMaxSpeed(), 0.01);
 }
 @Test
 public void testNumOfCities() {
   assertEquals(10, problem.numOfCities());
 }