'Default log level is used.'

def test_defaultLogLevel(self):

    predicate = LogLevelFilterPredicate()
    self.assertEqual(predicate.logLevelForNamespace(None), predicate.defaultLogLevel)
    self.assertEqual(predicate.logLevelForNamespace(''), predicate.defaultLogLevel)
    self.assertEqual(predicate.logLevelForNamespace('rocker.cool.namespace'), predicate.defaultLogLevel)
