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Add cleanup and fix pylint errors

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This commit is contained in:
Bob Lantz
2014-12-02 22:58:10 -08:00
parent 1471da95a9
commit b2fcab827d
1 changed files with 18 additions and 7 deletions
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mininet/test/test_hifi.py
+18 -7
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@@ -4,6 +4,7 @@
Test creation and pings for topologies with link and/or CPU options."""
import unittest
import sys
from functools import partial
from mininet.net import Mininet
@@ -13,6 +14,7 @@ from mininet.link import TCLink
from mininet.topo import Topo
from mininet.log import setLogLevel
from mininet.util import quietRun
from mininet.clean import cleanup
# Number of hosts for each test
N = 2
@@ -40,6 +42,11 @@ class testOptionsTopoCommon( object ):
switchClass = None # overridden in subclasses
def tearDown( self ):
"Clean up if necessary"
if sys.exc_info != ( None, None, None ):
cleanup()
def runOptionsTopoTest( self, n, msg, hopts=None, lopts=None ):
"Generic topology-with-options test runner."
mn = Mininet( topo=SingleSwitchOptionsTopo( n=n, hopts=hopts,
@@ -96,7 +103,8 @@ class testOptionsTopoCommon( object ):
results = mn.runCpuLimitTest( cpu=CPU_FRACTION )
mn.stop()
hostUsage = '\n'.join( 'h%s: %s' %
( n + 1, results[ ( n - 1 ) * 5: ( n * 5 ) - 1 ] )
( n + 1,
results[ (n - 1) * 5 : (n * 5) - 1 ] )
for n in range( N ) )
hoptsStr = ', '.join( '%s: %s' % ( opt, value )
for opt, value in hopts.items() )
@@ -106,7 +114,8 @@ class testOptionsTopoCommon( object ):
'hopts = %s\n'
'host = CPULimitedHost\n'
'Switch = %s\n'
% ( CPU_FRACTION * 100, hostUsage, N, hoptsStr, self.switchClass ) )
% ( CPU_FRACTION * 100, hostUsage, N, hoptsStr,
self.switchClass ) )
for pct in results:
#divide cpu by 100 to convert from percentage to fraction
self.assertWithinTolerance( pct/100, CPU_FRACTION,
@@ -115,7 +124,8 @@ class testOptionsTopoCommon( object ):
def testLinkBandwidth( self ):
"Verify that link bandwidths are accurate within a bound."
if self.switchClass is UserSwitch:
self.skipTest ( 'UserSwitch has very poor performance, so skip for now' )
self.skipTest ( 'UserSwitch has very poor performance -'
' skipping for now' )
BW = 5 # Mbps
BW_TOLERANCE = 0.8 # BW fraction below which test should fail
# Verify ability to create limited-link topo first;
@@ -124,7 +134,7 @@ class testOptionsTopoCommon( object ):
mn = Mininet( SingleSwitchOptionsTopo( n=N, lopts=lopts ),
link=TCLink, switch=self.switchClass,
waitConnected=True )
bw_strs = mn.run( mn.iperf, format='m' )
bw_strs = mn.run( mn.iperf, fmt='m' )
loptsStr = ', '.join( '%s: %s' % ( opt, value )
for opt, value in lopts.items() )
msg = ( '\nTesting link bandwidth limited to %d Mbps per link\n'
@@ -160,12 +170,12 @@ class testOptionsTopoCommon( object ):
mn.stop()
test_outputs = ping_delays[0]
# Ignore unused variables below
# pylint: disable-msg=W0612
# pylint: disable=W0612
node, dest, ping_outputs = test_outputs
sent, received, rttmin, rttavg, rttmax, rttdev = ping_outputs
pingFailMsg = 'sent %s pings, only received %s' % ( sent, received )
self.assertEqual( sent, received, msg=pingFailMsg )
# pylint: enable-msg=W0612
# pylint: enable=W0612
loptsStr = ', '.join( '%s: %s' % ( opt, value )
for opt, value in lopts.items() )
msg = ( '\nTesting Link Delay of %s ms\n'
@@ -212,7 +222,8 @@ class testOptionsTopoCommon( object ):
'lopts = %s\n'
'host = default\n'
'switch = %s\n'
% ( LOSS_PERCENT, dropped_total, N, loptsStr, self.switchClass ) )
% ( LOSS_PERCENT, dropped_total, N, loptsStr,
self.switchClass ) )
self.assertGreater( dropped_total, 0, msg )