@Test
 public void testSetCatchRate() {
   freshWater.setCatchRate(25.1);
   assertEquals(25.1, freshWater.getCatchRate(), DELTA);
   ultraBall.setCatchRate(85.69);
   assertEquals(85.69, ultraBall.getCatchRate(), DELTA);
 }
 @Test
 public void testGetCatchRate() {
   assertEquals(2, ultraBall.getCatchRate(), DELTA);
   assertEquals(0, freshWater.getCatchRate(), DELTA);
   assertEquals(0, maxRevive.getCatchRate(), DELTA);
 }