@Test
 public void testParametrizedFilter() {
   List<ProductBean> found = repo.findByPopularityLessThan(4, true);
   Assert.assertEquals(2, found.size());
 }
 @Test
 public void testFindByLessThan() {
   List<ProductBean> found = repo.findByPopularityLessThan(3);
   Assert.assertEquals(1, found.size());
   Assert.assertEquals(UNPOPULAR_AVAILABLE_PRODUCT.getId(), found.get(0).getId());
 }