def METHOD_NAME(self):
    associated_files = self.post_processor.list_associated_files(self.file_list[0], subfolders=False)
    associated_files = sorted(filename.lstrip("./") for filename in associated_files)
    out_list = sorted(filename for filename in self.file_list[1:] if "associated_files" not in filename and "Non-Associated" not in filename)
    assert associated_files == out_list