anchor.diff:  
   payload_tests() ->
       [server_echos_passive_small,
  +     server_echos_passive_chunk_small,
        server_echos_active_once_small,
        server_echos_active_small,
        client_echos_passive_small,
  +     client_echos_passive_chunk_small,
        client_echos_active_once_small,
        client_echos_active_small,
        server_echos_passive_big,
  +     server_echos_passive_chunk_big,
        server_echos_active_once_big,
        server_echos_active_big,
        client_echos_passive_big,
  +     client_echos_passive_chunk_big,
        client_echos_active_once_big,
        client_echos_active_big,
        server_echos_passive_huge,
  +     server_echos_passive_chunk_huge,
        server_echos_active_once_huge,
        server_echos_active_huge,
        client_echos_passive_huge,
  +     client_echos_passive_chunk_huge,
        client_echos_active_once_huge,
        client_echos_active_huge,
        client_active_once_server_close].
  
positive.code:     Data = binary:copy(<<"1234567890">>, 50000),
      client_echos_passive(
        Data, ClientOpts, ServerOpts, ClientNode, ServerNode, Hostname).
  
  %%--------------------------------------------------------------------
  client_echos_active_once_huge() ->
      [{doc, "Server sends 500000 bytes to client in active once mode, that receives "
  
negative.code: 
  init_per_testcase(TestCase, Config)
    when TestCase == server_echos_passive_big;
         TestCase == server_echos_passive_chunk_big;
         TestCase == server_echos_active_once_big;
         TestCase == server_echos_active_big;
         TestCase == client_echos_passive_big;
         TestCase == client_echos_passive_chunk_big;
         TestCase == client_echos_active_once_big;
         TestCase == client_echos_active_big ->
      ct:timetrap({seconds, 60}),
  