# -*- coding: utf-8 -*- from unittest import mock from pytube import cli @mock.patch("pytube.cli.YouTube") @mock.patch("pytube.cli.sys") def test_download(MockYouTube, mock_sys): instance = MockYouTube.return_value instance.prefetch_descramble.return_value = None instance.streams = mock.Mock() cli.download("asdf", 123)