anchor.diff:  bad_checksum_test() ->
       Host = "localhost",
       TcpPort = 32960,
  -    DataDir = "./data",
  +    DataDir = "./data.bct",
   
       Opts = [{initial_wedged, false}],
       start_flu_package(projection_test_flu, TcpPort, DataDir, Opts),
  
positive.code: flu_projection_smoke_test() ->
      Host = "localhost",
      TcpPort = 32959,
      DataDir = "./data",
  
      start_flu_package(projection_test_flu, TcpPort, DataDir),
      try
  
negative.code: witness_test() ->
      Host = "localhost",
      TcpPort = 32961,
      DataDir = "./data.witness",
  
      Opts = [{initial_wedged, false}, {witness_mode, true}],
      start_flu_package(projection_test_flu, TcpPort, DataDir, Opts),
  