anchor.diff:      {error, {bad_request, [Error]}} = Result.
   
   t_initiate_args_of_params__error__badreq__callback_uri_invalid(_Cfg) ->
  -    ResourceURI = <<"http://foo/bar">>,
  +    {ok, ResourceURI} = oauth1_uri:of_bin(<<"http://foo/bar">>),
       CallbackURI = <<"some/garbage/path?to=nowhere">>,
       Params =
           [ {?PARAM_REALM            , <<>>}
  
positive.code:     {some, [ParamUnsupported]} = hope_kv_list:get(E, parameters_unsupported).
  
  t_initiate_args_of_params__error__badreq__sig_meth_unsupported(_Cfg) ->
      ResourceURI = <<"http://foo/bar">>,
      SigMethod = <<"HAMMOCK-SHA7">>,
      Params =
          [ {?PARAM_REALM            , <<>>}
  
negative.code:     {error, {bad_request, [Error]}} = Result.
  
  t_initiate_args_of_params__error__badreq__params_missing_and_dups(_Cfg) ->
      {ok, ResourceURI} = oauth1_uri:of_bin(<<"http://foo/bar">>),
      Params =
          [ {?PARAM_CALLBACK         , <<>>}
          , {?PARAM_CALLBACK         , <<>>}
  