/** Test of getId method, of class JsonpWorld. */
 @Test
 public void testGetId() throws Exception {
   System.out.println("getId");
   final Field idField = instance.getClass().getDeclaredField("id"); // NOI18N.
   idField.setAccessible(true);
   final int expResult = idField.getInt(instance);
   final int result = instance.getId();
   assertEquals(expResult, result);
 }