anchor.diff:      Path = list_to_atom(Cwd ++ "/../../lib/jun/test/files/enoent.txt"),
       Error = jun_pandas:read_csv(Pid, Path, []),
       ?assertMatch({error, {'exceptions.IOError', _}}, Error).
  +
  +test_jun_pandas_to_datetime([{jun_worker, Pid}, {path, Path}, _]) ->
  +    {ok, {?DATAFRAME, DataFrame}} = jun_pandas:read_csv(Pid, Path, []),
  +    {ok, {?SERIES, Series}} = jun_pandas:single_selection(Pid, DataFrame, 'age', []),
  +    {ok, SeriesDt} = jun_pandas:to_datetime(Pid, Series, []),
  +    ?assertMatch({?SERIES, _}, SeriesDt).
  
positive.code: -include_lib("eunit/include/eunit.hrl").
  
  -define(DATAFRAME, 'pandas.core.frame.DataFrame').
  
  -export([all/0, init_per_testcase/2, end_per_testcase/2]).
  -export([test_jun_pandas_read_csv/1,
  
negative.code:      test_jun_pandas_to_html,
       test_jun_pandas_to_json,
       test_jun_pandas_to_erl,
       test_jun_pandas_bad_call,
       test_jun_pandas_to_datetime].
  
  init_per_testcase(_, _Config) ->
      % for each case start a new worker
  