anchor.diff:  end_per_group(_, _Config) ->
       ok.
   
  +init_per_testcase(channel_create_with_app_name=_Case, Config) ->
  +    ChannelName = <<"test-app">>,
  +    Token = <<"test">>,
  +    [{channel_name, ChannelName}, {channel_token, Token} | Config];
   init_per_testcase(v2_canary_session=Case, Config) ->
       Channel = logplex_channel:create(atom_to_binary(Case, latin1)),
       ChannelId = logplex_channel:id(Channel),
  
positive.code:     [{group, v2_canary}
      ,{group, read_only}
      ,{group, disabled}
      ].
  
  init_per_suite(Config) ->
  
negative.code:     request(get, Url, Opts).
  
  post(Url, Opts) ->
      ct:pal("POST url=~p, opts=~p", [Url, Opts]),
      request(post, Url, Opts).
  
  request(Method, Url, Opts) ->
  