def test_unbind_client(self):
"""Unbind a client"""""
q1 = QoS("100M", "My first QoS")
i1 = Interface("WAN", "My third interface", {'qos1': q1})
r = Router("eth0", interfaces={'eth2': i1})
r.bind("192.168.15.2", "eth2", "qos1")
r.bind("192.168.15.3", "eth2", "qos1")
r.unbind("192.168.15.2")
with self.assertRaises(KeyError):
r.clients["192.168.15.2"]
self.assertEqual(len(r.clients), 1)
r.unbind("192.168.15.2")
self.assertEqual(len(r.clients), 1)
class TestRouterObserver(unittest.TestCase):
def setUp(self):
q1 = QoS("100M", "My first QoS")
q2 = QoS("10M", "My second QoS")
i1 = Interface("LAN", "My second interface", {'qos1': q1, 'qos2': q2})
i2 = Interface("WAN", "My third interface", {'qos1': q1})
self.router = Router("eth0", interfaces={'eth1': i1, 'eth2': i2})
def test_register_observer(self):
"""Register an observer and receive events"""
last = {}
class Observer(object):
zope.interface.implements(IBinder)
def notify(self, event, source, **kwargs):
last['event'] = event
last['source'] = source
last['args'] = kwargs
self.router.register(Observer())
self.router.bind("192.168.15.2", "eth2", "qos1")
self.assertEqual(last['event'], 'bind')
self.assertEqual(last['source'], self.router)
self.assertEqual(last['args']['client'], '192.168.15.2')
self.assertEqual(last['args']['interface'], 'eth2')
self.assertEqual(last['args']['qos'], 'qos1')
self.router.bind("192.168.15.3", "eth2", "qos1")
self.assertEqual(last['event'], 'bind')
self.assertEqual(last['source'], self.router)
self.assertEqual(last['args']['client'], '192.168.15.3')
self.assertEqual(last['args']['interface'], 'eth2')
self.assertEqual(last['args']['qos'], 'qos1')
self.router.unbind("192.168.15.3")
self.assertEqual(last['event'], 'unbind')
self.assertEqual(last['source'], self.router)
self.assertEqual(last['args']['client'], '192.168.15.3')
def test_register_not_observer(self):
"""Register something which is not an observer"""
last = {}
class Observer(object):
def notify(self, event, source, **kwargs):
"""Will not be called"""
with self.assertRaises(ValueError):
self.router.register(Observer())
def test_register_several_observers(self):
"""Register several observers"""
events = {}
class Observer(object):
zope.interface.implements(IBinder)
def notify(self, event, source, **kwargs):
events[self] = event
obs1 = Observer()
obs2 = Observer()
obs3 = Observer()
self.router.register(obs1)
self.router.register(obs2)
self.router.register(obs3)
self.router.bind("192.168.15.2", "eth2", "qos1")
self.assertEqual(events, {obs1: 'bind',
obs2: 'bind',
obs3: 'bind'})
def test_observer_pickling(self):
"""Check if observers are notified on unpickling"""
temp = tempfile.mkdtemp()
try:
testfile = os.path.join(temp, "testfile.txt")
self.router.register(PickableObserver(testfile))
self.router.bind("192.168.15.2", "eth2", "qos1")
self.assertEqual(file(testfile).read(), "bind\n")
r = pickle.loads(pickle.dumps(self.router))
self.assertEqual(self.router, r)
self.assertEqual(self.router.clients, r.clients)
self.assertEqual(file(testfile).read(), "bind\nbind\n")
finally:
shutil.rmtree(temp)
def test_stats(self):
"""Register an observer that also implements IStatsProvider"""
class Observer(object):
zope.interface.implements(IBinder, IStatsProvider)
def notify(self, event, source, **kwargs):
"""Do nothing"""
def stats(self):
return {'eth1': {'up': 47, 'down': 255},
'eth2': {'clients': 2, 'details': {'172.14.15.16': {'up': 1, 'down': 2}}}}
self.assertEqual(self.router.stats,
{'eth1': {'clients': 0, 'details': {}},
'eth2': {'clients': 0, 'details': {}}})
self.router.register(Observer())
self.assertEqual(self.router.stats,
{'eth1': {'clients': 0, 'up': 47, 'down': 255, 'details': {}},
'eth2': {'clients': 0, 'details': {}}})
