@Test public void setGizmosTest() { List<Bumper> bumpers = new ArrayList<Bumper>(); Bumper cBump = new CircularBumper(0, 0, 0, "cBump"); bumpers.add(cBump); model.setBumpers(bumpers); assertTrue(model.getBumpers().size() == 1); assertEquals(model.getBumpers().get(0), cBump); }