TripUpdate.Builder tripUpdateBuilder = TripUpdate.newBuilder();
tripUpdateBuilder.setTrip(tripDescriptorBuilder);
TripUpdate tripUpdate = tripUpdateBuilder.build();
// add a new timetable for today, commit, and everything should match
assertTrue(resolver.update(pattern, tripUpdate, "agency", timeZone, today));
snapshot = resolver.commit();
assertEquals(snapshot.resolve(pattern, today), resolver.resolve(pattern, today));