anchor.diff:      SigTextExpected   = <<"GET&http%3A%2F%2Fphotos.example.net%2Fphotos&file%3Dvacation.jpg%26oauth_consumer_key%3Ddpf43f3p2l4k3l03%26oauth_nonce%3Dkllo9940pd9333jh%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1191242096%26oauth_token%3Dnnch734d00sl2jdk%26oauth_version%3D1.0%26size%3Doriginal">>,
       SigDigestExpected = <<"tR3%2BTy81lMeYAr%2FFid0kMTYa%2FWM%3D">>,
       Sig = oauth1_signature:cons(SigArgs),
  -    Cfg2 = orddict:store(?STATE_KEY_SIG                , Sig              , Cfg1),
  -    Cfg3 = orddict:store(?STATE_KEY_SIG_KEY_EXPECTED   , SigKeyExpected   , Cfg2),
  -    Cfg4 = orddict:store(?STATE_KEY_SIG_TEXT_EXPECTED  , SigTextExpected  , Cfg3),
  -    Cfg5 = orddict:store(?STATE_KEY_SIG_DIGEST_EXPECTED, SigDigestExpected, Cfg4),
  +    Cfg2 = orddict:store(?CFG_KEY_SIG                , Sig              , Cfg1),
  +    Cfg3 = orddict:store(?CFG_KEY_SIG_KEY_EXPECTED   , SigKeyExpected   , Cfg2),
  +    Cfg4 = orddict:store(?CFG_KEY_SIG_TEXT_EXPECTED  , SigTextExpected  , Cfg3),
  +    Cfg5 = orddict:store(?CFG_KEY_SIG_DIGEST_EXPECTED, SigDigestExpected, Cfg4),
       Cfg5.
   
   end_per_group(?CASE_GROUP_HUENIVERSE_GUIDE, _Cfg) ->
  
positive.code: %%=============================================================================
  
  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(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(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]),
  
negative.code:     , hope
      , oauth1
      ]).
  -define(CFG_KEY_SIG, sig).
  -define(CFG_KEY_SIG_KEY_EXPECTED    , sig_key_expected).
  -define(CFG_KEY_SIG_TEXT_EXPECTED   , sig_text_expected).
  -define(CFG_KEY_SIG_DIGEST_EXPECTED , sig_digest_expected).
  
  
  %%=============================================================================
  