'Test change log level from empty configuration.'

def test_set_filter_empty_config(self):

    self.setup_logger(NO_LOGS_CONFIG)
    self.assert_not_logged('test', logging.DEBUG)
    self.hass.services.call(logger.DOMAIN, 'set_level', {'test': 'debug'})
    self.hass.block_till_done()
    self.assert_logged('test', logging.DEBUG)
