log_test.py 文件源码

def _test_common(self, error_type, debug):
        """Returns the mocked logger and stderr output."""
        mock_err = six.StringIO()
        try:
            raise error_type(self.error_msg)
        except BaseException:
            exc_info = sys.exc_info()
            with mock.patch('certbot.log.logger') as mock_logger:
                with mock.patch('certbot.log.sys.stderr', mock_err):
                    try:
                        # pylint: disable=star-args
                        self._call(
                            *exc_info, debug=debug, log_path=self.log_path)
                    except SystemExit as exit_err:
                        mock_err.write(str(exit_err))
                    else:  # pragma: no cover
                        self.fail('SystemExit not raised.')

        output = mock_err.getvalue()
        return mock_logger, output