def METHOD_NAME(tracker_manager):
    """
    Test if we correctly load blacklist entries from a file
    """
    blacklist_file = tracker_manager.state_dir / "tracker_blacklist.txt"
    with open(blacklist_file, 'w') as f:
        f.write("http://test1.com/announce\nhttp://test2.com/announce")
    tracker_manager.load_blacklist()
    assert "http://test1.com/announce" in tracker_manager.blacklist
    assert "http://test2.com/announce" in tracker_manager.blacklist