anchor.diff:  
   -export([all/0, groups/0, init_per_suite/1, end_per_suite/1,
   	init_per_group/2, end_per_group/2]). %% ct.
  --export([headers_dupe/1, nc_rand/1, pipeline/1, raw/1]). %% http.
  +-export([headers_dupe/1, headers_huge/1,
  +	nc_rand/1, pipeline/1, raw/1]). %% http.
   -export([http_200/1, http_404/1, websocket/1]). %% http and https.
   
   %% ct.
  
positive.code: 	{_Start, _Length} = binary:match(Data, <<"Connection: close">>),
  	nomatch = binary:match(Data, <<"Connection: keep-alive">>),
  	ok = gen_tcp:close(Socket).
  
  nc_rand(Config) ->
  	Cat = os:find_executable("cat"),
  
negative.code: 
  groups() ->
  	BaseTests = [http_200, http_404],
  	[{http, [], [headers_dupe, headers_huge,
  		nc_rand, pipeline, raw, websocket] ++ BaseTests},
  	{https, [], BaseTests}].
  
  init_per_suite(Config) ->
  