anchor.diff:      test_jun_pandas_to_erl/1,
       test_jun_pandas_bad_call/1,
       test_jun_pandas_to_datetime/1,
  -    test_jun_pandas_read_sql/1]).
  +    test_jun_pandas_read_sql/1,
  +    test_jun_pandas_read_string/1]).
   
   all() ->
       [test_jun_pandas_read_csv,
  
positive.code: test_jun_pandas_read_sql([{jun_worker, Pid} | _]) ->
      {error,{Error, _}} = jun_pandas:read_sql(Pid, ['SELECT * FROM jun.table'], [{dsn, 'DSN'},
          {username, 'jun'}, {password, 'jun'}, {database, 'jun-database'}]),
      ?assertEqual('pyodbc.InterfaceError', Error). 
  
negative.code:      test_jun_pandas_to_erl,
       test_jun_pandas_bad_call,
       test_jun_pandas_to_datetime,
       test_jun_pandas_read_sql,
       test_jun_pandas_read_string].
  
  init_per_testcase(_, _Config) ->
      % for each case start a new worker
  