def testEjection(self):
""" Ejecting all newer duplicates should leave just 1. """
manager = RecognizerManager([YesRecognizer()])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NewerDuplicates)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 1)
self.assertEqual(len(maybes), 0)
def testCurrentScanner(self):
""" Show that passing in process scanners builds on previous. """
manager = RecognizerManager([ManyRecognizer(11)])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 0)
self.assertEqual(len(maybes), 10)
# take all undecided scanners from previous run and reuse
many_recognizers = maybes
manager = RecognizerManager([])
reader = NullReader(5)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, many_recognizers)
self.assertEqual(len(yeses), 5)
self.assertEqual(len(maybes), 5)
def testMaybeNo(self):
""" Many recognizers says no if it does not get enough entries. """
manager = RecognizerManager([ManyRecognizer(11)])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 0)
self.assertEqual(len(maybes), 10)
def testMaybeYes(self):
""" Lazy recognizers do not say yes until log is read. """
manager = RecognizerManager([LazyRecognizer()])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 10)
self.assertEqual(len(maybes), 10)
def testYes(self):
""" The manager always says yes, and never filters. """
manager = RecognizerManager([YesRecognizer()])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 10)
self.assertEqual(len(maybes), 0)
def testEmpty(self):
""" The manager does not recognize, so no results. """
manager = RecognizerManager([])
reader = NullReader(10)
scanner = LogScanner(reader, manager, NoneEjector)
yeses, maybes = scanner.matches(datetime.datetime.now, [])
self.assertEqual(len(yeses), 0)
self.assertEqual(len(maybes), 0)