new_contents: import unittest
  import tempfile
  
  from dsmr_parser.clients.filereader import FileReader
  from dsmr_parser.telegram_specifications import V5
  from test.example_telegrams import TELEGRAM_V5
  
  
  class FileReaderTest(unittest.TestCase):
      def test_read_as_object(self):
          with tempfile.NamedTemporaryFile() as file:
              with open(file.name, "w") as f:
                  f.write(TELEGRAM_V5)
  
              telegrams = []
              reader = FileReader(file=file.name, telegram_specification=V5)
              # Call
              for telegram in reader.read_as_object():
                  telegrams.append(telegram)
  
              self.assertEqual(len(telegrams), 1)
  
subject: Add FileReader test