anchor.diff:  equals_test() ->
       Name1 = 'node1@127.0.0.1',
       Node1 = node_spec(Name1),
  -    {ok, A} = add(Node1, a, new()),
  -    {ok, B} = add(Node1, b, new()),
  +    A = add(Node1, a, new()),
  +    B = add(Node1, b, new()),
       ?assert(not equal(A, B)),
       C = merge(A, B),
       D = merge(B, A),
  
positive.code:     Node1 = node_spec(Nodename),
      Node2 = node_spec(Nodename, {192, 168, 0, 1}),
  
      {ok, A} = add(Node1, a, new()),
      B = A,
      {ok, B2} = add(Node2, b, B),
  
      {ok, A2} = remove(Node1, a, A),
      {ok, A4} = add(Node2, a, A2),
      AB = merge(A4, B2),
  
      %% LWW
  
negative.code:     Node1 = node_spec(Nodename, {127, 0, 0, 1}),
      Node2 = node_spec(Nodename, {192, 168, 0, 1}),
  
      A = add(Node1, a, new()),
      A1 = remove(Node1, a, A),
  
      B = A, %% not A1
      B1 = add(Node2, b, B),
  
  
      ?assertEqual(
  