@patch('telegram_upload.upload_files.os.path.getsize', return_value=USER_MAX_FILE_SIZE - 1)
    @patch('telegram_upload.upload_files.File')
    def test_small_file(self, m1, m2):
        self.assertEqual(len(list(SplitFiles(MagicMock(max_file_size=USER_MAX_FILE_SIZE), ['foo']))), 1)