def test_error_logging(self): UploadErrorLog.objects.all().delete() uploader_service = UploadService(self.file) uploader_service.log_error(row_number=1, error="hahaha") retrieved_log = UploadErrorLog.objects.filter(filename=self.file.name, row_number=1, error="hahaha") self.assertEqual(1, retrieved_log.count())