anchor.diff:  %%=============================================================================
   
   t_key(Cfg) ->
  -    {some, Sig} = kvl_find(Cfg, ?CFG_KEY_SIG),
  +    {some, Sig}         = kvl_find(Cfg, ?CFG_KEY_SIG),
       {some, KeyExpected} = kvl_find(Cfg, ?CFG_KEY_SIG_KEY_EXPECTED),
       KeyComputed = oauth1_signature:get_key(Sig),
       ct:log("KeyExpected: ~p", [KeyExpected]),
  
positive.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).
  
negative.code:     BaseStringComputed = BaseStringExpected.
  
  t_digest(Cfg) ->
      {some, Sig}               = kvl_find(Cfg, ?CFG_KEY_SIG),
      {some, SigDigestExpected} = kvl_find(Cfg, ?CFG_KEY_SIG_DIGEST_EXPECTED),
      SigDigestComputed = oauth1_signature:get_digest(Sig),
      ct:log("SigDigestExpected: ~p", [SigDigestExpected]),
  