public void testAddHousehold_NoStreaming(){
HouseholdsImpl hhs = new HouseholdsImpl();
Household hh1 = new HouseholdImpl(Id.create("1", Household.class));
Household hh2 = new HouseholdImpl(Id.create("2", Household.class));
hhs.addHousehold(hh1);
assertEquals("Should have the first household added.", 1, hhs.getHouseholds().size());
assertTrue("First household not present.", hhs.getHouseholds().containsValue(hh1));
hhs.addHousehold(hh2);
assertEquals("Should have the first AND second household added.", 2, hhs.getHouseholds().size());
assertTrue("First household not present.", hhs.getHouseholds().containsValue(hh1));
assertTrue("Second household not present.", hhs.getHouseholds().containsValue(hh2));
}