anchor.diff:                          BoundaryHash =
                               riak_core_ring_util:partition_id_to_hash(PartitionId,
                                                                        RingSize),
  -                        true =:= riak_core_ring_util:hash_is_partition_boundary(BoundaryHash,
  -                                                                                RingSize)
  +                        equals(true,
  +                               riak_core_ring_util:hash_is_partition_boundary(BoundaryHash,
  +                                                                              RingSize))
                       end
                      )).
   
  
positive.code:                          HashIsPartitionBoundary =
                               riak_core_ring_util:hash_is_partition_boundary(HashValue,
                                                                              RingSize),
                           HashIsPartitionBoundary =:= HashIsInRing
                       end
                     )).
  
  
negative.code:                         BoundaryHash =
                              riak_core_ring_util:partition_id_to_hash(PartitionId,
                                                                       RingSize),
                          equals(PartitionId,
                                 riak_core_ring_util:hash_to_partition_id(
                                   BoundaryHash, RingSize))
                      end
                     )).
  
  