def tearDown(self):
super(NetworkLoadTestCase, self).tearDown()
# The only engine have to tear down stacks after all workers have done
if self.engine:
console.terse("Clearing netem rules\n")
netem.clear() # clear network emulation rules
if netem.check() != 0:
console.terse("Error removing netem rules! Check it manually!")
def tearDown(self):
super(NetworkLoadTestCase, self).tearDown()
# The only engine have to tear down stacks after all workers have done
if self.engine:
console.terse("Clearing netem rules\n")
netem.clear() # clear network emulation rules
if netem.check() != 0:
console.terse("Error removing netem rules! Check it manually!")
def testNetemWorks(self):
'''
Check if system configured to run sudo tc without password
If this test fail add the following in visudo:
username ALL=NOPASSWD: /usr/sbin/tc
This allow user 'username' to run 'sudo tc' without password prompt that is needed for netem module
'''
console.terse("{0}\n".format(self.testNetemWorks.__doc__))
self.assertTrue(netem.delay())
self.assertEqual(netem.check(), 1)
def testNetemWorks(self):
'''
Check if system configured to run sudo tc without password
If this test fail add the following in visudo:
username ALL=NOPASSWD: /usr/sbin/tc
This allow user 'username' to run 'sudo tc' without password prompt that is needed for netem module
'''
console.terse("{0}\n".format(self.testNetemWorks.__doc__))
self.assertTrue(netem.delay())
self.assertEqual(netem.check(), 1)
def testLossOneToOneToMaster(self):
'''
One slave sends messages to one master with packet loss
'''
console.terse("{0}\n".format(self.testLossOneToOneToMaster.__doc__))
self.assertTrue(netem.loss(percent=30, correlation=25))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=1,
minionCount=1,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_TO_MASTER)
def testDelayOneToOneToMaster(self):
'''
One slave sends messages to one master with network delays
'''
console.terse("{0}\n".format(self.testDelayOneToOneToMaster.__doc__))
self.assertTrue(netem.delay(time=200, jitter=100, correlation=30))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=1,
minionCount=1,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_TO_MASTER)
def testDuplicateOneToOneToMaster(self):
'''
One slave sends messages to one master with packet duplication
'''
console.terse("{0}\n".format(self.testDuplicateOneToOneToMaster.__doc__))
self.assertTrue(netem.duplicate(percent=50, correlation=25))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=1,
minionCount=1,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_TO_MASTER)
def testDelayOneToOneToMaster(self):
'''
One slave sends messages to one master with network delays
'''
console.terse("{0}\n".format(self.testDelayOneToOneToMaster.__doc__))
self.assertTrue(netem.delay(time=200, jitter=100, correlation=30))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=1,
minionCount=1,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_TO_MASTER)
def testCorruptManyToManyBidirectional(self):
'''
Bidirectional messaging between many masters and many slaves with packet corruption
'''
console.terse("{0}\n".format(self.testCorruptManyToManyBidirectional.__doc__))
self.assertTrue(netem.corrupt(percent=20, correlation=25))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=testing.MULTI_MASTER_COUNT,
minionCount=testing.MULTI_MINION_COUNT,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_BIDIRECTIONAL)
def testDelayManyToManyBidirectional(self):
'''
Bidirectional messaging between many masters and many slaves with network delay
'''
console.terse("{0}\n".format(self.testDelayManyToManyBidirectional.__doc__))
self.assertTrue(netem.delay(time=200, jitter=100, correlation=30))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=testing.MULTI_MASTER_COUNT,
minionCount=testing.MULTI_MINION_COUNT,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_BIDIRECTIONAL)
def testCorruptManyToManyBidirectional(self):
'''
Bidirectional messaging between many masters and many slaves with packet corruption
'''
console.terse("{0}\n".format(
self.testCorruptManyToManyBidirectional.__doc__))
self.assertTrue(netem.corrupt(percent=20, correlation=25))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=testing.MULTI_MASTER_COUNT,
minionCount=testing.MULTI_MINION_COUNT,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_BIDIRECTIONAL)
def testDelayManyToManyBidirectional(self):
'''
Bidirectional messaging between many masters and many slaves with network delay
'''
console.terse("{0}\n".format(
self.testDelayManyToManyBidirectional.__doc__))
self.assertTrue(netem.delay(time=200, jitter=100, correlation=30))
self.assertEqual(netem.check(), 1)
self.messagingMultiPeers(masterCount=testing.MULTI_MASTER_COUNT,
minionCount=testing.MULTI_MINION_COUNT,
msgSize=testing.MSG_SIZE_MED,
msgCount=testing.MSG_COUNT_MED,
duration=100.0,
direction=testing.DIR_BIDIRECTIONAL)