@Test
public void find3YoungestUsersPageableWithPageSize2Sliced() {
flushTestUsers();
User youngest1 = firstUser;
User youngest2 = fourthUser;
User youngest3 = secondUser;
Slice<User> firstPage = repository.findTop3UsersBy(new PageRequest(0, 2, ASC, "age"));
assertThat(firstPage.getContent(), hasItems(youngest1, youngest2));
Slice<User> secondPage = repository.findTop3UsersBy(new PageRequest(1, 2, ASC, "age"));