private void EnforceInvariants(HotelRoomSummary rooms)
{
if (rooms.NumberOfSingleRooms < 1 &&
rooms.NumberOfDoubleRooms < 1 &&
rooms.NumberOfFamilyRooms < 1)
throw new HotelsMustHaveRooms();
}
public Hotel(Guid id, HotelAvailability initialAvailability, HotelRoomSummary rooms)
{
EnforceInvariants(rooms);
this.Id = id;
this.Availability = initialAvailability;
this.Rooms = rooms;
}
public Hotel(Guid id, HotelAvailability initialAvailability, HotelRoomSummary rooms)
{
EnforceInvariants(rooms);
this.Id = id;
this.Availability = initialAvailability;
this.Rooms = rooms;
}
private void EnforceInvariants(HotelRoomSummary rooms)
{
if (rooms.NumberOfSingleRooms < 1 &&
rooms.NumberOfDoubleRooms < 1 &&
rooms.NumberOfFamilyRooms < 1)
{
throw new HotelsMustHaveRooms();
}
}
public void Hotels_must_have_rooms_else_they_are_not_hotels()
{
var id = Guid.NewGuid();
var availability = new HotelAvailability(null, null, null);
try
{
var rooms = new HotelRoomSummary(0, 0, 0);
new Hotel(id, availability, rooms);
}
catch (HotelsMustHaveRooms hmr)
{
// if exception is thrown test passes
return;
}
Assert.Fail("Hotels must have rooms invariant not enforced");
}