anchor.diff:  add_webdav_storage_test_base(ArgsCorrectness, SkipStorageDetection) ->
       api_oneprovider_storages_test_base:add_storage_test_base(
           #add_storage_test_spec{
  -            storage_type = posix,
  +            storage_type = webdav,
               args_correctness = ArgsCorrectness,
               skip_storage_detection = SkipStorageDetection,
   
  
positive.code: %%%                        and LumaDB feed is used to register storage
  %%% * autorizationHeader - can be tested only when onedataAccessToken is used
  %%% * fileMode           - works only on imported storages
  %%% * fileMode           - works only on imported storages
  %%% * rangeWriteSupport  - there are 3 possible values [none, moddav, sabredav], but only
  %%%                        sabredav option is tested due to webdav storage that onenv creates
  %%%
  
negative.code:     api_oneprovider_storages_test_base:args_correctness()
  ) ->
      api_test_runner:data_spec().
  build_add_webdav_storage_data_spec(MemRef, webdav, correct_args) ->
      StorageName = str_utils:rand_hex(10),
      api_test_memory:set(MemRef, storage_name, StorageName),
      #data_spec{
  