Enhance test readability with helper function

Introduced a helper function to improve the readability of tests in the libtorrent component. This function converts bitarray representations into base64, making it easier to understand and verify the expected results. The changes are applied in tests that check if correct pieces bitmask is returned when requested.

src/tribler/core/components/libtorrent/tests/test_download.py

@@ -1,11 +1,13 @@
 from asyncio import Future, sleep
+from base64 import b64encode
 from pathlib import Path
 from typing import Generator
 from unittest.mock import MagicMock, Mock, PropertyMock, patch
 
 import libtorrent as lt
 import pytest
 from _pytest.logging import LogCaptureFixture
+from bitarray import bitarray
 from ipv8.util import succeed
 from libtorrent import bencode
 
@@ -494,11 +496,16 @@ def test_get_pieces_bitmask(mock_handle, test_download):
  """
  Testing whether a correct pieces bitmask is returned when requested
  """
+
+ def _repr(s):
+ """ Helper function to return the base64 representation of a bitarray"""
+ return b64encode(bitarray(s).tobytes())
+
  test_download.handle.status().pieces = [True, False, True, False, False]
- assert test_download.get_pieces_base64() == b"oA=="
+ assert test_download.get_pieces_base64() == _repr('10100')
 
  test_download.handle.status().pieces = [True] * 16
- assert test_download.get_pieces_base64() == b"//8="
+ assert test_download.get_pieces_base64() == _repr('1111111111111111')
 
 
 async def test_resume_data_failed(test_download):