assert dogs.size() == 0;
List<Animal> loud = ofy().load().type(Animal.class).filter("loudness", this.dog.loudness).list();
assert loud.size() == 1;
Dog doug = (Dog)loud.get(0);
assert doug.loudness == this.dog.loudness;
// Let's try that again with a mammal query
List<Mammal> mloud = ofy().load().type(Mammal.class).filter("loudness", this.dog.loudness).list();
assert mloud.size() == 1;