anchor.diff:  %% Tests
   %%=============================================================================
   
  -t_key(Config) ->
  -    {some, Sig} = kvl_find(Config, ?STATE_KEY_SIG),
  -    {some, KeyExpected} = kvl_find(Config, ?STATE_KEY_SIG_KEY_EXPECTED),
  +t_key(Cfg) ->
  +    {some, Sig} = kvl_find(Cfg, ?STATE_KEY_SIG),
  +    {some, KeyExpected} = kvl_find(Cfg, ?STATE_KEY_SIG_KEY_EXPECTED),
       KeyComputed = oauth1_signature:get_key(Sig),
       ct:log("KeyExpected: ~p", [KeyExpected]),
       ct:log("KeyComputed: ~p", [KeyComputed]),
       KeyComputed = KeyExpected.
   
  -t_base_string(Config) ->
  -    {some, Sig} = kvl_find(Config, ?STATE_KEY_SIG),
  -    {some, BaseStringExpected} = kvl_find(Config, ?STATE_KEY_SIG_TEXT_EXPECTED),
  +t_base_string(Cfg) ->
  +    {some, Sig} = kvl_find(Cfg, ?STATE_KEY_SIG),
  +    {some, BaseStringExpected} = kvl_find(Cfg, ?STATE_KEY_SIG_TEXT_EXPECTED),
       BaseStringComputed = oauth1_signature:get_text(Sig),
       ct:log("BaseStringExpected: ~p", [BaseStringExpected]),
       ct:log("BaseStringComputed: ~p", [BaseStringComputed]),
       BaseStringComputed = BaseStringExpected.
   
  -t_digest(Config) ->
  -    {some, Sig} = kvl_find(Config, ?STATE_KEY_SIG),
  -    {some, SigDigestExpected} = kvl_find(Config, ?STATE_KEY_SIG_DIGEST_EXPECTED),
  +t_digest(Cfg) ->
  +    {some, Sig} = kvl_find(Cfg, ?STATE_KEY_SIG),
  +    {some, SigDigestExpected} = kvl_find(Cfg, ?STATE_KEY_SIG_DIGEST_EXPECTED),
       SigDigestComputed = oauth1_signature:get_digest(Sig),
       ct:log("SigDigestExpected: ~p", [SigDigestExpected]),
       ct:log("SigDigestComputed: ~p", [SigDigestComputed]),
  
positive.code:     Cfg5 = orddict:store(?STATE_KEY_SIG_DIGEST_EXPECTED, SigDigestExpected, Cfg4),
      Cfg5.
  
  end_per_group(?CASE_GROUP_HUENIVERSE_GUIDE, _Config) ->
      ok.
  
  
  
negative.code:     [ spec_for_case_group_hueniverse_guide()
      ].
  
  init_per_suite(Cfg) ->
      StartApp = fun (App) -> ok = application:start(App) end,
      ok = lists:foreach(StartApp, ?APP_DEPS),
      Cfg.
  
  end_per_suite(_Cfg) ->
      StopApp = fun (App) -> ok = application:stop(App) end,
      ok = lists:foreach(StopApp, lists:reverse(?APP_DEPS)).
  
  