anchor.diff:  all() -> 
   	[initial_exact_fit, initial_insufficient,
   	initial_insufficient_multisession,
  -	initial_reservation_overhead, initial_reservation_multiple_buckets,
  +	initial_overhead, initial_reservation_multiple_buckets,
   	initial_reservation_expiry_buckets, initial_reservation_ignore_expired_buckets,
   	initial_add_session, interim_reservation_avaialbe_remain_amount,
   	interim_reservations_within_package_size, interim_reservation_available_remain_amount,
  
positive.code: 	RemAmount = 200,
  	Reservation = 1500,
  	Buckets = [#bucket{units = cents, remain_amount = RemAmount,
  		start_date = erlang:system_time(?MILLISECOND),
  		termination_date = erlang:system_time(?MILLISECOND) + 2592000000}],
  	Destination = ocs:generate_identity(),
  	SessionId = [{'Session-Id', list_to_binary(ocs:generate_password())}],
  	{ok, _} = ocs:add_subscriber(SubscriberID, Password, ProdID, Chars, Buckets),
  	{ok, _, _} = ocs_rating:rate(radius, SubscriberID, Destination, initial, [], [{octets, Reservation}], SessionId),
  	{ok, #subscriber{buckets = RatedBuckets}} = ocs:find_subscriber(SubscriberID),
  	#bucket{reservations = Reservations} = lists:keyfind(cents, #bucket.units, RatedBuckets),
  	{_, Reserved, _} = lists:keyfind(SessionId, 3, Reservations),
  	F = fun(A) when (A rem PackageSize) == 0 ->
  			(A div PackageSize) * PackagePrice;
  		(A) ->
  			(A div PackageSize + 1) * PackagePrice
  	end,
  	Reserved = F(Reservation),
  	true = (Reserved * PackagePrice) > Reservation.
  
negative.code: 	{ok, #subscriber{session_attributes = [{_, SessionAttr}]}, _} = ocs_rating:rate(radius,
  			SubscriberID, Destination, initial, [], [{octets, PackageSize}], SessionAttr).
  
  initial_overhead() ->
  	[{userdata, [{doc, "Reserved amount greater than requested reservation amount"}]}].
  
  initial_overhead(_Config) ->
  	ProdID = ocs:generate_password(),
  	PackagePrice = 100,
  	PackageSize = 1000,
  	Price = #price{name = "overage", type = usage,
  			units = octets, size = PackageSize, amount = PackagePrice},
  	Product = #product{name = ProdID, price = [Price]},
  	{ok, _} = ocs:add_product(Product),
  	SubscriberID = list_to_binary(ocs:generate_identity()),
  