f1 = d.getFamily(f1.id());
assertEquals(1,f1.getPersons().size());
f2 = d.getFamily(f2.id());
p2 = d.getPerson(p2.id());
p2.addFriendFamily(f1);
p2.addFriendFamily(f2);
assertEquals(2,p2.getFriendFamilies().size());
f2.delete();
assertEquals(1,p2.getFriendFamilies().size());