anchor.diff:      Config.
   
   %% Runs before the test case. Runs in the same process.
  -init_per_testcase(lookup_by_channel, Config) ->
  +init_per_testcase(by_channel, Config) ->
       logplex_db:start_link(),
       [{chan, 1} | Config];
   init_per_testcase(_CaseName, Config) ->
  
positive.code: %% a single atom.
  
  all() ->
      [lookup_by_channel].
  
  %%%%%%%%%%%%%%%%%%%%%%
  %%% Setup/Teardown %%%
  
negative.code: %%% TESTS %%%
  %%%%%%%%%%%%%
  
  by_channel(Config) ->
      Chan = ?config(chan, Config),
      Tokens = [ logplex_token:new(Chan, list_to_binary(Name))
                 || Name <- ["heroku", "app", "postgres", "bob"]],
  