def testRegressionRun( self ):
"Test pingpair (0% drop) and iperf (bw > 0) regression test"
# test pingpair
p = pexpect.spawn( 'mn --test pingpair' )
p.expect( '0% dropped' )
p.expect( pexpect.EOF )
# test iperf
p = pexpect.spawn( 'mn --test iperf' )
p.expect( r"Results: \['([\d\.]+) .bits/sec'," )
bw = float( p.match.group( 1 ) )
self.assertTrue( bw > 0 )
p.expect( pexpect.EOF )
def testRegressionRun( self ):
"Test pingpair (0% drop) and iperf (bw > 0) regression tests"
# test pingpair
p = pexpect.spawn( 'mn --test pingpair' )
p.expect( '0% dropped' )
p.expect( pexpect.EOF )
# test iperf
p = pexpect.spawn( 'mn --test iperf' )
p.expect( r"Results: \['([\d\.]+) .bits/sec'," )
bw = float( p.match.group( 1 ) )
self.assertTrue( bw > 0 )
p.expect( pexpect.EOF )
def testVerbosity( self ):
"Test debug and output verbosity"
# test output
p = pexpect.spawn( 'mn -v output' )
p.expect( self.prompt )
self.assertEqual( len( p.before ), 0, 'Too much output for "output"' )
p.sendline( 'exit' )
p.wait()
# test debug
p = pexpect.spawn( 'mn -v debug --test none' )
p.expect( pexpect.EOF )
lines = p.before.split( '\n' )
self.assertTrue( len( lines ) > 70, "Debug output is too short" )
def testVerbosity( self ):
"Test debug and output verbosity"
# test output
p = pexpect.spawn( 'mn -v output' )
p.expect( self.prompt )
self.assertEqual( len( p.before ), 0, 'Too much output for "output"' )
p.sendline( 'exit' )
p.wait()
# test debug
p = pexpect.spawn( 'mn -v debug --test none' )
p.expect( pexpect.EOF )
lines = p.before.split( '\n' )
self.assertTrue( len( lines ) > 70, "Debug output is too short" )
def testRemoteController( self ):
"Test Mininet using Pox controller"
# Satisfy pylint
assert self
if not os.path.exists( '/tmp/pox' ):
p = pexpect.spawn(
'git clone https://github.com/noxrepo/pox.git /tmp/pox' )
p.expect( pexpect.EOF )
pox = pexpect.spawn( '/tmp/pox/pox.py forwarding.l2_learning' )
net = pexpect.spawn(
'mn --controller=remote,ip=127.0.0.1,port=6633 --test pingall' )
net.expect( '0% dropped' )
net.expect( pexpect.EOF )
pox.sendintr()
pox.wait()
def testWireshark( self ):
"Use tshark to test the of dissector"
# Satisfy pylint
assert self
if StrictVersion( tsharkVersion() ) < StrictVersion( '1.12.0' ):
tshark = pexpect.spawn( 'tshark -i lo -R of' )
else:
tshark = pexpect.spawn( 'tshark -i lo -Y openflow_v1' )
tshark.expect( [ 'Capturing on lo', "Capturing on 'Loopback'" ] )
mn = pexpect.spawn( 'mn --test pingall' )
mn.expect( '0% dropped' )
tshark.expect( [ '74 Hello', '74 of_hello', '74 Type: OFPT_HELLO' ] )
tshark.sendintr()
mn.expect( pexpect.EOF )
tshark.expect( pexpect.EOF )
def testWireshark( self ):
"Use tshark to test the of dissector"
# Satisfy pylint
assert self
if StrictVersion( tsharkVersion() ) < StrictVersion( '1.12.0' ):
tshark = pexpect.spawn( 'tshark -i lo -R of' )
else:
tshark = pexpect.spawn( 'tshark -i lo -Y openflow_v1' )
tshark.expect( [ 'Capturing on lo', "Capturing on 'Loopback'" ] )
mn = pexpect.spawn( 'mn --test pingall' )
mn.expect( '0% dropped' )
tshark.expect( [ '74 Hello', '74 of_hello', '74 Type: OFPT_HELLO' ] )
tshark.sendintr()
mn.expect( pexpect.EOF )
tshark.expect( pexpect.EOF )
def testRemoteController( self ):
"Test Mininet using Pox controller"
# Satisfy pylint
assert self
if not os.path.exists( '/tmp/pox' ):
p = pexpect.spawn(
'git clone https://github.com/noxrepo/pox.git /tmp/pox' )
p.expect( pexpect.EOF )
pox = pexpect.spawn( '/tmp/pox/pox.py forwarding.l2_learning' )
net = pexpect.spawn(
'mn --controller=remote,ip=127.0.0.1,port=6633 --test pingall' )
net.expect( '0% dropped' )
net.expect( pexpect.EOF )
pox.sendintr()
pox.wait()
def testLinearBandwidth( self ):
"Verify that bandwidth is monotonically decreasing as # of hops increases"
p = pexpect.spawn( 'python -m mininet.examples.linearbandwidth' )
count = 0
opts = [ '\*\*\* Linear network results',
'(\d+)\s+([\d\.]+) (.bits)',
pexpect.EOF ]
while True:
index = p.expect( opts, timeout=600 )
if index == 0:
count += 1
elif index == 1:
n = int( p.match.group( 1 ) )
bw = float( p.match.group( 2 ) )
unit = p.match.group( 3 )
if unit[ 0 ] == 'K':
bw *= 10 ** 3
elif unit[ 0 ] == 'M':
bw *= 10 ** 6
elif unit[ 0 ] == 'G':
bw *= 10 ** 9
# check that we have a previous result to compare to
if n != 1:
info = ( 'bw: %.2e bits/s across %d switches, '
'previous: %.2e bits/s across %d switches' %
( bw, n, previous_bw, previous_n ) )
self.assertTrue( bw < previous_bw, info )
previous_bw, previous_n = bw, n
else:
break
# verify that we received results from at least one switch
self.assertTrue( count > 0 )
def testMultiPoll( self ):
"Verify that we receive one ping per second per host"
p = pexpect.spawn( 'python -m mininet.examples.multipoll' )
opts = [ "\*\*\* (h\d) :" ,
"(h\d+): \d+ bytes from",
"Monitoring output for (\d+) seconds",
pexpect.EOF ]
pings, seconds = {}, -1
while True:
index = p.expect( opts )
if index == 0:
name = p.match.group( 1 )
pings[ name ] = 0
elif index == 1:
name = p.match.group( 1 )
pings[ name ] += 1
elif index == 2:
seconds = int( p.match.group( 1 ) )
else:
break
self.assertTrue( len( pings ) > 0 )
# make sure we have received at least one ping per second
for count in pings.values():
self.assertTrue( count >= seconds,
'%d pings < %d seconds' % ( count, seconds ) )
def testOwnNamespace( self ):
"Test running user switch in its own namespace"
p = pexpect.spawn( 'mn --innamespace --switch user' )
p.expect( self.prompt )
interfaces = [ r'h1-eth0[:\s]', r's1-eth1[:\s]',
r'[^-](eth|en)\w*\d[:\s]', r'lo[:\s]',
self.prompt ]
p.sendline( 's1 ifconfig -a' )
ifcount = 0
while True:
index = p.expect( interfaces )
if index == 1 or index == 3:
ifcount += 1
elif index == 0:
self.fail( 'h1 interface displayed in "s1 ifconfig"' )
elif index == 2:
self.fail( 'eth0 displayed in "s1 ifconfig"' )
else:
break
self.assertEqual( ifcount, 2, 'Missing interfaces on s1' )
# verify that all hosts a reachable
p.sendline( 'pingall' )
p.expect( r'(\d+)% dropped' )
dropped = int( p.match.group( 1 ) )
self.assertEqual( dropped, 0, 'pingall failed')
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def setUp(self):
# verify that sshd is not running
self.assertFalse(self.connected())
# create public key pair for testing
sh('rm -rf /tmp/ssh')
sh('mkdir /tmp/ssh')
sh("ssh-keygen -t rsa -P '' -f /tmp/ssh/test_rsa")
sh('cat /tmp/ssh/test_rsa.pub >> /tmp/ssh/authorized_keys')
# run example with custom sshd args
cmd = ('python -m mininet.examples.baresshd '
'-o AuthorizedKeysFile=/tmp/ssh/authorized_keys '
'-o StrictModes=no')
p = pexpect.spawn(cmd)
runOpts = [
'You may now ssh into h1 at 10.0.0.1',
'after 5 seconds, h1 is not listening on port 22', pexpect.EOF,
pexpect.TIMEOUT
]
while True:
index = p.expect(runOpts)
if index == 0:
break
else:
self.tearDown()
self.fail('sshd failed to start in host h1')
def pingTest(self, name):
"Verify that there are no dropped packets for each host"
p = pexpect.spawn('python -m %s' % name)
opts = [
"<(h\d+)>: PING ",
"<(h\d+)>: (\d+) packets transmitted, (\d+) received", pexpect.EOF
]
pings = {}
while True:
index = p.expect(opts)
if index == 0:
name = p.match.group(1)
pings[name] = 0
elif index == 1:
name = p.match.group(1)
transmitted = p.match.group(2)
received = p.match.group(3)
# verify no dropped packets
self.assertEqual(received, transmitted)
pings[name] += 1
else:
break
self.assertTrue(len(pings) > 0)
# verify that each host has gotten results
for count in pings.values():
self.assertEqual(count, 1)
def testIntfOptions( self ):
"verify that intf.config is correctly limiting traffic"
p = pexpect.spawn( 'python -m mininet.examples.intfoptions ' )
tolerance = .2 # plus or minus 20%
opts = [ "Results: \['([\d\.]+) .bits/sec",
"Results: \['10M', '([\d\.]+) .bits/sec",
"h(\d+)->h(\d+): (\d)/(\d),"
"rtt min/avg/max/mdev ([\d\.]+)/([\d\.]+)/([\d\.]+)/([\d\.]+) ms",
pexpect.EOF ]
while True:
index = p.expect( opts, timeout=600 )
if index == 0:
BW = 5
bw = float( p.match.group( 1 ) )
self.assertGreaterEqual( bw, BW * ( 1 - tolerance ) )
self.assertLessEqual( bw, BW * ( 1 + tolerance ) )
elif index == 1:
BW = 10
measuredBw = float( p.match.group( 1 ) )
loss = ( measuredBw / BW ) * 100
self.assertGreaterEqual( loss, 50 * ( 1 - tolerance ) )
self.assertLessEqual( loss, 50 * ( 1 + tolerance ) )
elif index == 2:
delay = float( p.match.group( 6 ) )
self.assertGreaterEqual( delay, 15 * ( 1 - tolerance ) )
self.assertLessEqual( delay, 15 * ( 1 + tolerance ) )
else:
break
def testLimit(self):
"Verify that CPU limits are within a 2% tolerance of limit for each scheduler"
p = pexpect.spawn('python -m mininet.examples.limit')
opts = [
'\*\*\* Testing network ([\d\.]+) Mbps',
'\*\*\* Results: \[([\d\., ]+)\]', pexpect.EOF
]
count = 0
bw = 0
tolerance = 2
while True:
index = p.expect(opts)
if index == 0:
bw = float(p.match.group(1))
count += 1
elif index == 1:
results = p.match.group(1)
for x in results.split(','):
result = float(x)
self.assertTrue(result < bw + tolerance)
self.assertTrue(result > bw - tolerance)
else:
break
self.assertTrue(count > 0)
def testMultiPing( self ):
"""Verify that each target is pinged at least once, and
that pings to 'real' targets are successful and unknown targets fail"""
p = pexpect.spawn( 'python -m mininet.examples.multiping' )
opts = [ "Host (h\d+) \(([\d.]+)\) will be pinging ips: ([\d\. ]+)",
"(h\d+): ([\d.]+) -> ([\d.]+) \d packets transmitted, (\d) received",
pexpect.EOF ]
pings = defaultdict( list )
while True:
index = p.expect( opts )
if index == 0:
name = p.match.group(1)
ip = p.match.group(2)
targets = p.match.group(3).split()
pings[ name ] += targets
elif index == 1:
name = p.match.group(1)
ip = p.match.group(2)
target = p.match.group(3)
received = int( p.match.group(4) )
if target == '10.0.0.200':
self.assertEqual( received, 0, p.match.group(0) + '\n' +
target + ' received %d != 0 packets' % received )
else:
self.assertEqual( received, 1, p.match.group(0) + '\n' +
target + ' received %d != 1 packets' % received )
try:
pings[ name ].remove( target )
except:
pass
else:
break
self.assertTrue( len( pings ) > 0, 'too few pings' )
for t in pings.values():
self.assertEqual( len( t ), 0, 'missed ping target(s): %s' % t )
def testIntfOptions(self):
"verify that intf.config is correctly limiting traffic"
p = pexpect.spawn('python -m mininet.examples.intfoptions ')
tolerance = .25 # plus or minus 25% for cloud CI tests
opts = [
"Results: \['([\d\.]+) .bits/sec",
"Results: \['10M', '([\d\.]+) .bits/sec",
"h(\d+)->h(\d+): (\d)/(\d),"
"rtt min/avg/max/mdev ([\d\.]+)/([\d\.]+)/([\d\.]+)/([\d\.]+) ms",
pexpect.EOF
]
while True:
index = p.expect(opts, timeout=600)
if index == 0:
BW = 10
bw = float(p.match.group(1))
self.assertGreaterEqual(bw, BW * (1 - tolerance))
self.assertLessEqual(bw, BW * (1 + tolerance))
elif index == 1:
BW = 10
measuredBw = float(p.match.group(1))
loss = (measuredBw / BW) * 100
self.assertGreaterEqual(loss, 50 * (1 - tolerance),
'loss of %d%% << 50%%' % loss)
self.assertLessEqual(loss, 50 * (1 + tolerance),
'loss of %d%% >> 50%%' % loss)
elif index == 2:
delay = float(p.match.group(6))
self.assertGreaterEqual(delay, 15 * (1 - tolerance))
self.assertLessEqual(delay, 15 * (1 + tolerance))
else:
break
def testOwnNamespace( self ):
"Test running user switch in its own namespace"
p = pexpect.spawn( 'mn --innamespace --switch user' )
p.expect( self.prompt )
interfaces = [ r'h1-eth0[:\s]', r's1-eth1[:\s]',
r'[^-](eth|en)\w*\d[:\s]', r'lo[:\s]',
self.prompt ]
p.sendline( 's1 ifconfig -a' )
ifcount = 0
while True:
index = p.expect( interfaces )
if index == 1 or index == 3:
ifcount += 1
elif index == 0:
self.fail( 'h1 interface displayed in "s1 ifconfig"' )
elif index == 2:
self.fail( 'eth0 displayed in "s1 ifconfig"' )
else:
break
self.assertEqual( ifcount, 2, 'Missing interfaces on s1' )
# verify that all hosts a reachable
p.sendline( 'pingall' )
p.expect( r'(\d+)% dropped' )
dropped = int( p.match.group( 1 ) )
self.assertEqual( dropped, 0, 'pingall failed')
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testLinearBandwidth(self):
"Verify that bandwidth is monotonically decreasing as # of hops increases"
p = pexpect.spawn('python -m mininet.examples.linearbandwidth')
count = 0
opts = [
'\*\*\* Linear network results', '(\d+)\s+([\d\.]+) (.bits)',
pexpect.EOF
]
while True:
index = p.expect(opts, timeout=600)
if index == 0:
count += 1
elif index == 1:
n = int(p.match.group(1))
bw = float(p.match.group(2))
unit = p.match.group(3)
if unit[0] == 'K':
bw *= 10**3
elif unit[0] == 'M':
bw *= 10**6
elif unit[0] == 'G':
bw *= 10**9
# check that we have a previous result to compare to
if n != 1:
info = ('bw: %.2e bits/s across %d switches, '
'previous: %.2e bits/s across %d switches' %
(bw, n, previous_bw, previous_n))
self.assertTrue(bw < previous_bw, info)
previous_bw, previous_n = bw, n
else:
break
# verify that we received results from at least one switch
self.assertTrue(count > 0)
def testTopoChange( self ):
"Test pingall on single,3 and linear,4 topos"
# testing single,3
p = pexpect.spawn( 'mn --test pingall --topo single,3' )
p.expect( r'(\d+)/(\d+) received')
received = int( p.match.group( 1 ) )
sent = int( p.match.group( 2 ) )
self.assertEqual( sent, 6, 'Wrong number of pings sent in single,3' )
self.assertEqual( sent, received, 'Dropped packets in single,3')
p.expect( pexpect.EOF )
# testing linear,4
p = pexpect.spawn( 'mn --test pingall --topo linear,4' )
p.expect( r'(\d+)/(\d+) received')
received = int( p.match.group( 1 ) )
sent = int( p.match.group( 2 ) )
self.assertEqual( sent, 12, 'Wrong number of pings sent in linear,4' )
self.assertEqual( sent, received, 'Dropped packets in linear,4')
p.expect( pexpect.EOF )
def setUp( self ):
self.net = pexpect.spawn( 'python -m mininet.examples.bind' )
self.net.expect( "Private Directories: \[([\w\s,'/]+)\]" )
self.directories = []
# parse directories from mn output
for d in self.net.match.group(1).split(', '):
self.directories.append( d.strip("'") )
self.net.expect( self.prompt )
self.assertTrue( len( self.directories ) > 0 )
def setUp(self):
self.net = pexpect.spawn('python -m mininet.examples.bind')
self.net.expect("Private Directories: \[([\w\s,'/]+)\]")
self.directories = []
# parse directories from mn output
for d in self.net.match.group(1).split(', '):
self.directories.append(d.strip("'"))
self.net.expect(self.prompt)
self.assertTrue(len(self.directories) > 0)
def testTopoChange( self ):
"Test pingall on single,3 and linear,4 topos"
# testing single,3
p = pexpect.spawn( 'mn --test pingall --topo single,3' )
p.expect( r'(\d+)/(\d+) received')
received = int( p.match.group( 1 ) )
sent = int( p.match.group( 2 ) )
self.assertEqual( sent, 6, 'Wrong number of pings sent in single,3' )
self.assertEqual( sent, received, 'Dropped packets in single,3')
p.expect( pexpect.EOF )
# testing linear,4
p = pexpect.spawn( 'mn --test pingall --topo linear,4' )
p.expect( r'(\d+)/(\d+) received')
received = int( p.match.group( 1 ) )
sent = int( p.match.group( 2 ) )
self.assertEqual( sent, 12, 'Wrong number of pings sent in linear,4' )
self.assertEqual( sent, received, 'Dropped packets in linear,4')
p.expect( pexpect.EOF )
def testSwitches( self ):
"Run iperf test using user and ovsk switches"
switches = [ 'user', 'ovsk' ]
for sw in switches:
p = pexpect.spawn( 'mn --switch %s --test iperf' % sw )
p.expect( r"Results: \['([\d\.]+) .bits/sec'," )
bw = float( p.match.group( 1 ) )
self.assertTrue( bw > 0 )
p.expect( pexpect.EOF )
def testSwitches( self ):
"Run iperf test using user and ovsk switches"
switches = [ 'user', 'ovsk' ]
for sw in switches:
p = pexpect.spawn( 'mn --switch %s --test iperf' % sw )
p.expect( r"Results: \['([\d\.]+) .bits/sec'," )
bw = float( p.match.group( 1 ) )
self.assertTrue( bw > 0 )
p.expect( pexpect.EOF )
def testStaticMAC( self ):
"Verify that MACs are set to easy to read numbers"
p = pexpect.spawn( 'mn --mac' )
p.expect( self.prompt )
for i in range( 1, 3 ):
p.sendline( 'h%d ifconfig' % i )
p.expect( r'\s00:00:00:00:00:0%d\s' % i )
p.expect( self.prompt )
p.sendline( 'exit' )
p.expect( pexpect.EOF )
def testClusterPingAll( self ):
p = pexpect.spawn( 'python -m mininet.examples.clusterSanity' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
percent = int( p.match.group( 1 ) ) if p.match else -1
self.assertEqual( percent, 0 )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testClusterPingAll(self):
p = pexpect.spawn('python -m mininet.examples.clusterSanity')
p.expect(self.prompt)
p.sendline('pingall')
p.expect('(\d+)% dropped')
percent = int(p.match.group(1)) if p.match else -1
self.assertEqual(percent, 0)
p.expect(self.prompt)
p.sendline('exit')
p.wait()
def testFailover(self):
"Kill controllers and verify that switch, s1, fails over properly"
count = 1
p = pexpect.spawn('python -m mininet.examples.controlnet')
p.expect(self.prompt)
lp = pexpect.spawn('tail -f /tmp/s1-ofp.log')
lp.expect('tcp:\d+\.\d+\.\d+\.(\d+):\d+: connected')
ip = int(lp.match.group(1))
self.assertEqual(count, ip)
count += 1
for c in ['c0', 'c1']:
p.sendline('%s ifconfig %s-eth0 down' % (c, c))
p.expect(self.prompt)
lp.expect('tcp:\d+\.\d+\.\d+\.(\d+):\d+: connected')
ip = int(lp.match.group(1))
self.assertEqual(count, ip)
count += 1
p.sendline('exit')
p.wait()
def testStaticMAC( self ):
"Verify that MACs are set to easy to read numbers"
p = pexpect.spawn( 'mn --mac' )
p.expect( self.prompt )
for i in range( 1, 3 ):
p.sendline( 'h%d ifconfig' % i )
p.expect( r'\s00:00:00:00:00:0%d\s' % i )
p.expect( self.prompt )
p.sendline( 'exit' )
p.expect( pexpect.EOF )
def testNAT( self ):
"Attempt to ping an IP on the Internet and verify 0% packet loss"
p = pexpect.spawn( 'python -m mininet.examples.nat' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 %s' % destIP )
p.expect ( '(\d+)% packet loss' )
percent = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
self.assertEqual( percent, 0 )
def testCustomTopo( self ):
"Start Mininet using a custom topo, then run pingall"
# Satisfy pylint
assert self
custom = os.path.dirname( os.path.realpath( __file__ ) )
custom = os.path.join( custom, '../../custom/topo-2sw-2host.py' )
custom = os.path.normpath( custom )
p = pexpect.spawn(
'mn --custom %s --topo mytopo --test pingall' % custom )
p.expect( '0% dropped' )
p.expect( pexpect.EOF )
def testPingall( self ):
"Test connectivity between hosts"
p = pexpect.spawn( 'python -m mininet.examples.linuxrouter' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
percent = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
self.assertEqual( percent, 0 )
def testNAT(self):
"Attempt to ping an IP on the Internet and verify 0% packet loss"
p = pexpect.spawn('python -m mininet.examples.nat')
p.expect(self.prompt)
p.sendline('h1 ping -c 1 %s' % destIP)
p.expect('(\d+)% packet loss')
percent = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
self.assertEqual(percent, 0)
def testRouterPing( self ):
"Test connectivity from h1 to router"
p = pexpect.spawn( 'python -m mininet.examples.linuxrouter' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 r0' )
p.expect ( '(\d+)% packet loss' )
percent = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
self.assertEqual( percent, 0 )
def testTTL( self ):
"Verify that the TTL is decremented"
p = pexpect.spawn( 'python -m mininet.examples.linuxrouter' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect ( 'ttl=(\d+)' )
ttl = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
self.assertEqual( ttl, 63 ) # 64 - 1
def testLocalPing( self ):
"Verify connectivity between virtual hosts using pingall"
p = pexpect.spawn( 'python -m mininet.examples.hwintf %s' % self.n0.intf() )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
percent = int( p.match.group( 1 ) ) if p.match else -1
self.assertEqual( percent, 0 )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testRouterPing(self):
"Test connectivity from h1 to router"
p = pexpect.spawn('python -m mininet.examples.linuxrouter')
p.expect(self.prompt)
p.sendline('h1 ping -c 1 r0')
p.expect('(\d+)% packet loss')
percent = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
self.assertEqual(percent, 0)
def testTTL(self):
"Verify that the TTL is decremented"
p = pexpect.spawn('python -m mininet.examples.linuxrouter')
p.expect(self.prompt)
p.sendline('h1 ping -c 1 h2')
p.expect('ttl=(\d+)')
ttl = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
self.assertEqual(ttl, 63) # 64 - 1
def testPingall(self):
"Simple pingall test that verifies 0% packet drop in data network"
p = pexpect.spawn('python -m mininet.examples.controlnet')
p.expect(self.prompt)
p.sendline('pingall')
p.expect('(\d+)% dropped')
percent = int(p.match.group(1)) if p.match else -1
self.assertEqual(percent, 0)
p.expect(self.prompt)
p.sendline('exit')
p.wait()
def testPingall(self):
"Test connectivity between hosts"
p = pexpect.spawn('python -m mininet.examples.linuxrouter')
p.expect(self.prompt)
p.sendline('pingall')
p.expect('(\d+)% dropped')
percent = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
self.assertEqual(percent, 0)
def connected( self ):
"Log into ssh server, check banner, then exit"
p = pexpect.spawn( 'ssh 10.0.0.1 -o ConnectTimeout=1 '
'-o StrictHostKeyChecking=no '
'-i /tmp/ssh/test_rsa exit' )
while True:
index = p.expect( self.opts )
if index == 0:
return True
else:
return False
def testVLANTopo( self ):
"Test connectivity (or lack thereof) between hosts in VLANTopo"
p = pexpect.spawn( 'python -m mininet.examples.vlanhost' )
p.expect( self.prompt )
p.sendline( 'pingall 1' ) #ping timeout=1
p.expect( '(\d+)% dropped', timeout=30 ) # there should be 24 failed pings
percent = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
self.assertEqual( percent, 80 )
def connected(self):
"Log into ssh server, check banner, then exit"
p = pexpect.spawn('ssh 10.0.0.1 -o ConnectTimeout=1 '
'-o StrictHostKeyChecking=no '
'-i /tmp/ssh/test_rsa exit')
while True:
index = p.expect(self.opts)
if index == 0:
return True
else:
return False
def testCustomTopo( self ):
"Start Mininet using a custom topo, then run pingall"
# Satisfy pylint
assert self
custom = os.path.dirname( os.path.realpath( __file__ ) )
custom = os.path.join( custom, '../../custom/topo-2sw-2host.py' )
custom = os.path.normpath( custom )
p = pexpect.spawn(
'mn --custom %s --topo mytopo --test pingall' % custom )
p.expect( '0% dropped' )
p.expect( pexpect.EOF )
def testVLANTopo(self):
"Test connectivity (or lack thereof) between hosts in VLANTopo"
p = pexpect.spawn('python -m mininet.examples.vlanhost')
p.expect(self.prompt)
p.sendline('pingall 1') #ping timeout=1
p.expect('(\d+)% dropped',
timeout=30) # there should be 24 failed pings
percent = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
self.assertEqual(percent, 80)
def setUp( self ):
# create public key pair for testing
sh( 'rm -rf /tmp/ssh' )
sh( 'mkdir /tmp/ssh' )
sh( "ssh-keygen -t rsa -P '' -f /tmp/ssh/test_rsa" )
sh( 'cat /tmp/ssh/test_rsa.pub >> /tmp/ssh/authorized_keys' )
cmd = ( 'python -m mininet.examples.sshd -D '
'-o AuthorizedKeysFile=/tmp/ssh/authorized_keys '
'-o StrictModes=no -o UseDNS=no -u0' )
# run example with custom sshd args
self.net = pexpect.spawn( cmd )
self.net.expect( 'mininet>' )
def testConnectivity( self ):
"Test ping and pingall"
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect( '1 packets transmitted, 1 received' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect( '0% dropped' )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testConnectivity( self ):
"Test ping and pingall"
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect( '1 packets transmitted, 1 received' )
p.expect( self.prompt )
p.sendline( 'pingall' )
p.expect( '0% dropped' )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testLocalPing(self):
"Verify connectivity between virtual hosts using pingall"
p = pexpect.spawn('python -m mininet.examples.hwintf %s' %
self.n0.intf())
p.expect(self.prompt)
p.sendline('pingall')
p.expect('(\d+)% dropped')
percent = int(p.match.group(1)) if p.match else -1
self.assertEqual(percent, 0)
p.expect(self.prompt)
p.sendline('exit')
p.wait()
def testHostCommands(self):
"Test ifconfig and ps on h1 and s1"
p = pexpect.spawn('mn -w')
p.expect(self.prompt)
# Third pattern is a local interface beginning with 'eth' or 'en'
interfaces = [
r'h1-eth0[:\s]', r's1-eth1[:\s]', r'[^-](eth|en)\w*\d[:\s]',
r'lo[:\s]', self.prompt
]
# h1 ifconfig
p.sendline('h1 ifconfig -a')
ifcount = 0
while True:
index = p.expect(interfaces)
if index in (0, 3):
ifcount += 1
elif index == 1:
self.fail('s1 interface displayed in "h1 ifconfig"')
elif index == 2:
self.fail('eth0 displayed in "h1 ifconfig"')
else:
break
self.assertEqual(ifcount, 2, 'Missing interfaces on h1')
# s1 ifconfig
p.sendline('s1 ifconfig -a')
ifcount = 0
while True:
index = p.expect(interfaces)
if index == 0:
self.fail('h1 interface displayed in "s1 ifconfig"')
elif index in (1, 2, 3):
ifcount += 1
else:
break
self.assertTrue(ifcount <= 3, 'Missing interfaces on s1')
# h1 ps
p.sendline("h1 ps -a | egrep -v 'ps|grep'")
p.expect(self.prompt)
h1Output = p.before
# s1 ps
p.sendline("s1 ps -a | egrep -v 'ps|grep'")
p.expect(self.prompt)
s1Output = p.before
# strip command from ps output and compute diffs
h1Output = h1Output.split('\n')[1:]
s1Output = s1Output.split('\n')[1:]
diffs = set(h1Output).difference(set(s1Output))
# allow up to two diffs to account for daemons, etc.
self.assertTrue(
len(diffs) <= 2,
'h1 and s1 "ps" output differ too much: %s' % diffs)
p.sendline('exit')
p.wait()
def setUp(self):
# create public key pair for testing
sh('rm -rf /tmp/ssh')
sh('mkdir /tmp/ssh')
sh("ssh-keygen -t rsa -P '' -f /tmp/ssh/test_rsa")
sh('cat /tmp/ssh/test_rsa.pub >> /tmp/ssh/authorized_keys')
cmd = ('python -m mininet.examples.sshd -D '
'-o AuthorizedKeysFile=/tmp/ssh/authorized_keys '
'-o StrictModes=no -o UseDNS=no -u0')
# run example with custom sshd args
self.net = pexpect.spawn(cmd)
self.net.expect('mininet>')
def testTree1024(self):
"Run the example and do a simple ping test from h1 to h1024"
p = pexpect.spawn('python -m mininet.examples.tree1024')
p.expect(self.prompt, timeout=6000) # it takes awhile to set up
p.sendline('h1 ping -c 20 h1024')
p.expect('(\d+)% packet loss')
packetLossPercent = int(p.match.group(1)) if p.match else -1
p.expect(self.prompt)
p.sendline('exit')
p.wait()
# Tolerate slow startup on some systems - we should revisit this
# and determine the root cause.
self.assertLess(packetLossPercent, 60)
def testTree1024( self ):
"Run the example and do a simple ping test from h1 to h1024"
p = pexpect.spawn( 'python -m mininet.examples.tree1024' )
p.expect( self.prompt, timeout=6000 ) # it takes awhile to set up
p.sendline( 'h1 ping -c 20 h1024' )
p.expect ( '(\d+)% packet loss' )
packetLossPercent = int( p.match.group( 1 ) ) if p.match else -1
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
# Tolerate slow startup on some systems - we should revisit this
# and determine the root cause.
self.assertLess( packetLossPercent, 60 )
def testHostCommands( self ):
"Test ifconfig and ps on h1 and s1"
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
# Third pattern is a local interface beginning with 'eth' or 'en'
interfaces = [ r'h1-eth0[:\s]', r's1-eth1[:\s]',
r'[^-](eth|en)\w*\d[:\s]', r'lo[:\s]',
self.prompt ]
# h1 ifconfig
p.sendline( 'h1 ifconfig -a' )
ifcount = 0
while True:
index = p.expect( interfaces )
if index == 0 or index == 3:
ifcount += 1
elif index == 1:
self.fail( 's1 interface displayed in "h1 ifconfig"' )
elif index == 2:
self.fail( 'eth0 displayed in "h1 ifconfig"' )
else:
break
self.assertEqual( ifcount, 2, 'Missing interfaces on h1')
# s1 ifconfig
p.sendline( 's1 ifconfig -a' )
ifcount = 0
while True:
index = p.expect( interfaces )
if index == 0:
self.fail( 'h1 interface displayed in "s1 ifconfig"' )
elif index == 1 or index == 2 or index == 3:
ifcount += 1
else:
break
self.assertTrue( ifcount <= 3, 'Missing interfaces on s1')
# h1 ps
p.sendline( "h1 ps -a | egrep -v 'ps|grep'" )
p.expect( self.prompt )
h1Output = p.before
# s1 ps
p.sendline( "s1 ps -a | egrep -v 'ps|grep'" )
p.expect( self.prompt )
s1Output = p.before
# strip command from ps output and compute diffs
h1Output = h1Output.split( '\n' )[ 1: ]
s1Output = s1Output.split( '\n' )[ 1: ]
diffs = set( h1Output ).difference( set( s1Output ) )
# allow up to two diffs to account for daemons, etc.
self.assertTrue( len( diffs ) <= 2,
'h1 and s1 "ps" output differ too much: %s' % diffs )
p.sendline( 'exit' )
p.wait()
def testE2E( self ):
"Run the example and verify iperf results"
# 10 Mb/s, plus or minus 20% tolerance
BW = 10
TOLERANCE = .2
p = pexpect.spawn( 'python -m mininet.examples.simpleperf testmode' )
# check iperf results
p.expect( "Results: \['10M', '([\d\.]+) .bits/sec", timeout=480 )
measuredBw = float( p.match.group( 1 ) )
lowerBound = BW * ( 1 - TOLERANCE )
upperBound = BW + ( 1 + TOLERANCE )
self.assertGreaterEqual( measuredBw, lowerBound )
self.assertLessEqual( measuredBw, upperBound )
p.wait()
def testTreePing64( self ):
"Run the example and verify ping results"
p = pexpect.spawn( 'python -m mininet.examples.treeping64' )
p.expect( 'Tree network ping results:', timeout=6000 )
count = 0
while True:
index = p.expect( [ '(\d+)% packet loss', pexpect.EOF ] )
if index == 0:
percent = int( p.match.group( 1 ) ) if p.match else -1
self.assertEqual( percent, 0 )
count += 1
else:
break
self.assertTrue( count > 0 )
def testEmptyNet( self ):
"Run simple CLI tests: pingall (verify 0% drop) and iperf (sanity)"
p = pexpect.spawn( 'python -m mininet.examples.emptynet' )
p.expect( self.prompt )
# pingall test
p.sendline( 'pingall' )
p.expect ( '(\d+)% dropped' )
percent = int( p.match.group( 1 ) ) if p.match else -1
self.assertEqual( percent, 0 )
p.expect( self.prompt )
# iperf test
p.sendline( 'iperf' )
p.expect( "Results: \['[\d.]+ .bits/sec', '[\d.]+ .bits/sec'\]" )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testLink( self ):
"Test link CLI command using ping"
p = pexpect.spawn( 'mn' )
p.expect( self.prompt )
p.sendline( 'link s1 h1 down' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect( 'unreachable' )
p.expect( self.prompt )
p.sendline( 'link s1 h1 up' )
p.expect( self.prompt )
p.sendline( 'h1 ping -c 1 h2' )
p.expect( '0% packet loss' )
p.expect( self.prompt )
p.sendline( 'exit' )
p.wait()
def testMultiTest( self ):
"Verify pingall (0% dropped) and hX-eth0 interface for each host (ifconfig)"
p = pexpect.spawn( 'python -m mininet.examples.multitest' )
p.expect( '(\d+)% dropped' )
dropped = int( p.match.group( 1 ) )
self.assertEqual( dropped, 0 )
ifCount = 0
while True:
index = p.expect( [ 'h\d-eth0', self.prompt ] )
if index == 0:
ifCount += 1
elif index == 1:
p.sendline( 'exit' )
break
p.wait()
self.assertEqual( ifCount, 4 )
