@Test(expectedExceptions = {IllegalStateException.class})
public void shouldKeepOneToOneSymetric2() {
initData10();
OneToOne<Person, Person> rel = db.oneToOneSymmetric(persons, "rel", persons);
rel.link(1, 2);
rel.link(5, 2);
}
@Test
public void shouldKeepOneToOneSymetric1() {
initData10();
OneToOne<Person, Person> rel = db.oneToOneSymmetric(persons, "rel", persons);
rel.link(1, 2);
rel.link(3, 4);
eq(rel.from(1), 2);
eq(rel.from(2), 1);
eq(rel.from(3), 4);
eq(rel.from(4), 3);
eq(rel.to(1), 2);
eq(rel.to(2), 1);
eq(rel.to(3), 4);
eq(rel.to(4), 3);
hasId(rel.from(p(1)), 2);
hasId(rel.from(p(2)), 1);
hasId(rel.from(p(3)), 4);
hasId(rel.from(p(4)), 3);
hasId(rel.to(p(1)), 2);
hasId(rel.to(p(2)), 1);
hasId(rel.to(p(3)), 4);
hasId(rel.to(p(4)), 3);
eq(rel.to(100), -1);
eq(rel.from(100), -1);
eq(rel.to(p(100)), null);
eq(rel.from(p(100)), null);
rel.delink(4, 3);
eq(rel.to(3), -1);
eq(rel.to(4), -1);
eq(rel.from(3), -1);
eq(rel.from(4), -1);
eq(rel.to(p(3)), null);
eq(rel.to(p(4)), null);
eq(rel.from(p(3)), null);
eq(rel.from(p(4)), null);
eq(rel.from(1), 2);
eq(rel.from(2), 1);
eq(rel.to(1), 2);
eq(rel.to(2), 1);
}