anchor.diff:  	[{type, tcp}, {port, Port}, {opts, []}|Config].
   
   end_per_group(Name, _) ->
  -	cowboy:stop_listener(Name).
  +	ok = cowboy:stop_listener(Name).
   
   %% Dispatch configuration.
   
  
positive.code: 			{"/req_attr", http_req_attr, []}
  		]}
  	]),
  	{ok, _} = cowboy:start_http(http, 100, [{port, 0}], [
  		{env, [{dispatch, Dispatch}]},
  		{max_keepalive, 50},
  		{timeout, 500}
  	]),
  	Port = ranch:get_port(http),
  	[{type, tcp}, {port, Port}, {opts, []}|Config];
  init_per_group(set_env, Config) ->
  	{ok, _} = cowboy:start_http(set_env, 100, [{port, 0}], [
  
negative.code: 	gun_is_gone(ConnPid, MRef).
  
  http10_hostless(Config) ->
  	Name = http10_hostless,
  	Port10 = config(port, Config) + 10,
  	Transport = case config(type, Config) of
  		tcp -> ranch_tcp;
  		ssl -> ranch_ssl
  