}
@Test
public void lookSessionBySpeaker() {
Session s = Session.all().first();
// No activity for the session
assertEquals(0, Activity.count("session = ?", s));
assertNull(Activity.find("session = ?", s).first());
// Session looked by one of speakers
s.lookedBy(s.speakers.iterator().next());
// Still no activity for the session
assertEquals(0, Activity.count("session = ?", s));
assertNull(Activity.find("session = ?", s).first());
}