'L{SyslogObserver.emit} uses the value of the C{\'syslogPriority\'} as the
syslog priority, if that key is present in the event dictionary.'

def test_emitCustomFacility(self):

    self.observer.emit({'message': ('hello,    world',), 'isError': False, 'system': '-', 'syslogFacility': stdsyslog.LOG_CRON})
    self.assertEqual(self.events, [((stdsyslog.LOG_INFO | stdsyslog.LOG_CRON), '[-]    hello,    world')])
