anchor.diff:      Neighb24 = nodelist:mk_neighborhood([N14], N8, 1, 1),
       Neighb25 = nodelist:mk_neighborhood([N8], N14, 1, 1),
       Neighb26 = nodelist:mk_neighborhood([N14], N15, 1, 1),
  -    ?compare_neighborhood(Neighb21, N8,   8, N14, [N14], N14, [N14], true, true),
  -    ?compare_neighborhood(Neighb22, N14, 14, N8,  [N8],  N8,  [N8],  true, true),
  -    ?compare_neighborhood(Neighb23, N8,   8, N8,  [N8],  N8,  [N8],  false, false),
  -    ?compare_neighborhood(Neighb24, N8,   8, N14, [N14], N14, [N14], true, true),
  -    ?compare_neighborhood(Neighb25, N14, 14, N8,  [N8],  N8,  [N8],  true, true),
  -    ?compare_neighborhood(Neighb26, N15, 15, N15, [N15], N15, [N15], false, false),
  +    ?compare_neighborhood(Neighb21, N8,  N14, [N14], N14, [N14], true, true),
  +    ?compare_neighborhood(Neighb22, N14, N8,  [N8],  N8,  [N8],  true, true),
  +    ?compare_neighborhood(Neighb23, N8,  N8,  [N8],  N8,  [N8],  false, false),
  +    ?compare_neighborhood(Neighb24, N8,  N14, [N14], N14, [N14], true, true),
  +    ?compare_neighborhood(Neighb25, N14, N8,  [N8],  N8,  [N8],  true, true),
  +    ?compare_neighborhood(Neighb26, N15, N15, [N15], N15, [N15], false, false),
       
       Neighb31 = nodelist:mk_neighborhood( [N14, N8,  N33], N8, 1, 1),
       Neighb32 = nodelist:mk_neighborhood( [N33, N8,  N14], N8, 1, 1),
  
positive.code: %% @doc Tests adding nodes to a neighborhood structure.
  -spec test_add_nodes(any()) -> ok.
  test_add_nodes(_Config) ->
      N8 = node:new(pid1,   8, 0),
      N9 = node:new(pid1,   9, 1), % N8 updated
      N14 = node:new(pid2, 14, 0),
      N15 = node:new(pid2, 15, 1), % N14 updated
      N20 = node:new(pid3, 20, 0),
      N21 = node:new(pid3, 21, 1), % N20 updated
      N33 = node:new(pid4, 33, 0),
      N42 = node:new(pid5, 42, 0),
      N50 = node:new(pid6, 50, 0),
      N66 = node:new(pid7, 66, 0),
      
      Neighb1 = nodelist:mk_neighborhood([N8, N14, N50], N33),
      Neighb2 = nodelist:mk_neighborhood([N8, N14, N50], N33, 3, 3),
  
negative.code: %% @doc Tests converting neighborhood structures to node lists.
  -spec test_to_list(any()) -> ok.
  test_to_list(_Config) ->
      N8 = node:new(pid1,   ?KEY(8), 0),
      N14 = node:new(pid2, ?KEY(14), 0),
      N20 = node:new(pid3, ?KEY(20), 0),
      N33 = node:new(pid4, ?KEY(33), 0),
      N50 = node:new(pid5, ?KEY(50), 0),
      
      Neighb1 = nodelist:mk_neighborhood([N8, N14, N33, N50], N20),
      Neighb2 = nodelist:mk_neighborhood([N8, N14, N33, N50], N20, 3, 3),
  