public void ensure_house_count_is_zero_when_street_specification_not_loaded()
{
_townPlanner = TownPlanner.Create(_streetSpecificationReader);
_townPlanner.NorthSideHouses().Count().ShouldBe(0);
_townPlanner.IsValid().ShouldBeFalse();
_townPlanner.GetHousesWestToEast().Count.ShouldBe(0);
_townPlanner.SouthSideHouses().Count().ShouldBe(0);
_townPlanner.NumberOfHousesInStreet().ShouldBe(0);
_townPlanner.NumberOfHousesOnNorthSide().ShouldBe(0);
_townPlanner.NumberOfHousesOnSouthSide().ShouldBe(0);
}
public IEnumerable <int> GetDeliveryByNorthSideThenSouthSide()
{
ResetCrossings();
var northSide = _townplanner.NorthSideHouses();
UpdateCrossing();
var southside = _townplanner.SouthSideHouses().Reverse();
var deliveryOrder = northSide.Concat(southside);
return(deliveryOrder);
}