def testSysfsStats(self):
qfiles = 'testdata/sysfs/eth0/bcmgenet_discard_cnt_q%d'
numq = 17
eth = netdev.NetdevStatsLinux26('eth0',
qfiles=qfiles,
numq=numq,
hipriq=numq)
self.assertEqual(len(eth.X_CATAWAMPUS_ORG_DiscardFrameCnts), numq)
total = 0
for i in range(numq):
self.assertEqual(int(eth.X_CATAWAMPUS_ORG_DiscardFrameCnts[i]), i)
total += i
self.assertEqual(eth.X_CATAWAMPUS_ORG_DiscardPacketsReceivedHipri,
total)
numq = 5
eth = netdev.NetdevStatsLinux26('eth0',
qfiles=qfiles,
numq=numq,
hipriq=2)
self.assertEqual(len(eth.X_CATAWAMPUS_ORG_DiscardFrameCnts), numq)
for i in range(numq):
self.assertEqual(int(eth.X_CATAWAMPUS_ORG_DiscardFrameCnts[i]), i)
self.assertEqual(eth.X_CATAWAMPUS_ORG_DiscardPacketsReceivedHipri, 1)
eth = netdev.NetdevStatsLinux26('foo0', qfiles=qfiles, numq=0)
self.assertEqual(len(eth.X_CATAWAMPUS_ORG_DiscardFrameCnts), 0)
self.assertEqual(eth.X_CATAWAMPUS_ORG_DiscardPacketsReceivedHipri, 0)
def testRxPacketsWrap(self):
"""Rx Packets has wrapped back to zero, but Rx Multicast has not."""
netdev.PROC_NET_DEV = 'testdata/netdev/wrapped_net_dev'
eth = netdev.NetdevStatsLinux26('eth0')
self.assertEqual(eth.MulticastPacketsReceived, 10)
self.assertEqual(eth.PacketsReceived, 1)
# b/12022359 would try to set UnicastPacketsReceived negative, and result
# in a ValueError. We want to check that no exception is raised.
self.assertGreaterEqual(eth.UnicastPacketsReceived, 0)
def testInterfaceStatsGood(self):
netdev.PROC_NET_DEV = 'testdata/ethernet/net_dev'
eth = netdev.NetdevStatsLinux26(ifname='foo0')
self.assertEqual(eth.BroadcastPacketsReceived, None)
self.assertEqual(eth.BroadcastPacketsSent, None)
self.assertEqual(eth.BytesReceived, '1')
self.assertEqual(eth.BytesSent, '9')
self.assertEqual(eth.DiscardPacketsReceived, '4')
self.assertEqual(eth.DiscardPacketsSent, '11')
self.assertEqual(eth.ErrorsReceived, '9')
self.assertEqual(eth.ErrorsSent, '12')
self.assertEqual(eth.MulticastPacketsReceived, '8')
self.assertEqual(eth.MulticastPacketsSent, None)
self.assertEqual(eth.PacketsReceived, '100')
self.assertEqual(eth.PacketsSent, '10')
self.assertEqual(eth.UnicastPacketsReceived, '92')
self.assertEqual(eth.UnicastPacketsSent, '10')
self.assertEqual(eth.UnknownProtoPacketsReceived, None)
def testInterfaceStatsGood(self):
netdev.PROC_NET_DEV = 'testdata/ethernet/net_dev'
eth = netdev.NetdevStatsLinux26(ifname='foo0')
self.assertEqual(eth.BroadcastPacketsReceived, 0)
self.assertEqual(eth.BroadcastPacketsSent, 0)
self.assertEqual(eth.BytesReceived, 1)
self.assertEqual(eth.BytesSent, 9)
self.assertEqual(eth.DiscardPacketsReceived, 9)
self.assertEqual(eth.DiscardPacketsSent, 12)
self.assertEqual(eth.ErrorsReceived, 9)
self.assertEqual(eth.ErrorsSent, 11 + 13)
self.assertEqual(eth.MulticastPacketsReceived, 8)
self.assertEqual(eth.MulticastPacketsSent, 0)
self.assertEqual(eth.PacketsReceived, 100)
self.assertEqual(eth.PacketsSent, 10)
self.assertEqual(eth.UnicastPacketsReceived, 92)
self.assertEqual(eth.UnicastPacketsSent, 10)
self.assertEqual(eth.UnknownProtoPacketsReceived, 0)
def testInterfaceStatsReal(self):
# A test using a /proc/net/dev line taken from a running Linux 2.6.32
# system. Most of the fields are zero, so we exercise the other handling
# using the foo0 fake data instead.
netdev.PROC_NET_DEV = 'testdata/ethernet/net_dev'
eth = netdev.NetdevStatsLinux26('eth0')
self.assertEqual(eth.BroadcastPacketsReceived, None)
self.assertEqual(eth.BroadcastPacketsSent, None)
self.assertEqual(eth.BytesReceived, '21052761139')
self.assertEqual(eth.BytesSent, '10372833035')
self.assertEqual(eth.DiscardPacketsReceived, '0')
self.assertEqual(eth.DiscardPacketsSent, '0')
self.assertEqual(eth.ErrorsReceived, '0')
self.assertEqual(eth.ErrorsSent, '0')
self.assertEqual(eth.MulticastPacketsReceived, '0')
self.assertEqual(eth.MulticastPacketsSent, None)
self.assertEqual(eth.PacketsReceived, '91456760')
self.assertEqual(eth.PacketsSent, '80960002')
self.assertEqual(eth.UnicastPacketsReceived, '91456760')
self.assertEqual(eth.UnicastPacketsSent, '80960002')
self.assertEqual(eth.UnknownProtoPacketsReceived, None)
def test32bitCounterWraps(self):
netdev.PROC_NET_DEV = 'testdata/netdev/proc_net_dev_wrap1'
eth = netdev.NetdevStatsLinux26(ifname='eth0')
self.assertEqual(eth.BroadcastPacketsReceived, 0)
self.assertEqual(eth.BroadcastPacketsSent, 0)
self.assertEqual(eth.BytesReceived, 4294967231)
self.assertEqual(eth.BytesSent, 4294967239)
self.assertEqual(eth.DiscardPacketsReceived, 4294967234 + 4294967235)
self.assertEqual(eth.DiscardPacketsSent, 4294967242)
self.assertEqual(eth.ErrorsReceived, 4294967233 + 4294967236)
self.assertEqual(eth.ErrorsSent, 4294967241 + 4294967243)
self.assertEqual(eth.MulticastPacketsReceived, 4294967200)
self.assertEqual(eth.MulticastPacketsSent, 0)
self.assertEqual(eth.PacketsReceived, 4294967232)
self.assertEqual(eth.PacketsSent, 4294967240)
self.assertEqual(eth.UnicastPacketsReceived, 4294967232 - 4294967200)
self.assertEqual(eth.UnicastPacketsSent, 4294967240)
self.assertEqual(eth.UnknownProtoPacketsReceived, 0)
netdev.PROC_NET_DEV = 'testdata/netdev/proc_net_dev_wrap2'
# vaues should be cached for one CWMP session
self.assertEqual(eth.BytesReceived, 4294967231)
tr.session.cache.flush()
# Now we should see the accumulated values
MAX_UINT = 0xffffffff
self.assertEqual(eth.BytesReceived, MAX_UINT + 1000)
self.assertEqual(eth.BytesSent, MAX_UINT + 1008)
self.assertEqual(eth.DiscardPacketsReceived,
2 * MAX_UINT + 1003 + 1004)
self.assertEqual(eth.DiscardPacketsSent, MAX_UINT + 1011)
self.assertEqual(eth.ErrorsReceived, 2 * MAX_UINT + 1002 + 1005)
self.assertEqual(eth.ErrorsSent, 2 * MAX_UINT + 1010 + 1012)
self.assertEqual(eth.MulticastPacketsReceived, MAX_UINT + 1007)
self.assertEqual(eth.PacketsReceived, MAX_UINT + 1021)
self.assertEqual(eth.PacketsSent, MAX_UINT + 1009)
self.assertEqual(eth.UnicastPacketsReceived, 1021 - 1007)
self.assertEqual(eth.UnicastPacketsSent, MAX_UINT + 1009)