@Test
  public void successfullyDeleted() {
    populate(1, 10);

    crud.delete(createId("id-11"));
    MyEntity persisted = crud.load(createId("id-11"));
    assertNull(persisted);
  }
 @Before
 public void eraseData() {
   for (MyEntity myEntity : crud.findAll()) {
     crud.delete(myEntity.getId());
   }
 }