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import os, sys
import unittest
from trex import CTRexScenario
from stateful_tests.trex_general_test import CTRexGeneral_Test
from trex_stl_lib.api import *
import time
from nose.tools import nottest
def setUpModule():
if CTRexScenario.stl_trex.is_connected():
CStlGeneral_Test.recover_after_trex_210_issue()
class CStlGeneral_Test(CTRexGeneral_Test):
"""This class defines the general stateless testcase of the TRex traffic generator"""
def setUp(self):
self.stl_trex = CTRexScenario.stl_trex
CTRexGeneral_Test.setUp(self)
# check basic requirements, should be verified at test_connectivity, here only skip test
if CTRexScenario.stl_init_error:
self.skip(CTRexScenario.stl_init_error)
# workaround of http://trex-tgn.cisco.com/youtrack/issue/trex-210
@staticmethod
def recover_after_trex_210_issue():
return
for i in range(20):
try:
stl_map_ports(CTRexScenario.stl_trex)
break
except:
CTRexScenario.stl_trex.disconnect()
time.sleep(0.5)
CTRexScenario.stl_trex.connect()
# verify problem is solved
stl_map_ports(CTRexScenario.stl_trex)
def connect(self, timeout = 100):
# need delay and check only because TRex process might be still starting
sys.stdout.write('Connecting')
for i in range(timeout):
try:
sys.stdout.write('.')
sys.stdout.flush()
self.stl_trex.connect()
print('')
return True
except:
time.sleep(0.1)
print('')
return False
def map_ports(self, timeout = 100):
sys.stdout.write('Mapping ports')
for i in range(timeout):
sys.stdout.write('.')
sys.stdout.flush()
CTRexScenario.stl_ports_map = stl_map_ports(self.stl_trex)
if self.verify_bidirectional(CTRexScenario.stl_ports_map):
print('')
return True
time.sleep(0.1)
print('')
return False
# verify all the ports are bidirectional
@staticmethod
def verify_bidirectional(mapping_dict):
if len(mapping_dict['unknown']):
return False
if len(mapping_dict['bi']) * 2 == len(mapping_dict['map']):
return True
return False
@staticmethod
def get_port_count():
return CTRexScenario.stl_trex.get_port_count()
@staticmethod
def is_connected():
return CTRexScenario.stl_trex.is_connected()
class STLBasic_Test(CStlGeneral_Test):
# will run it first explicitly, check connectivity and configure routing
@nottest
def test_connectivity(self):
if not self.is_loopback:
if CTRexScenario.router_cfg['forceImageReload']:
CTRexScenario.router.load_clean_config()
CTRexScenario.router.configure_basic_interfaces()
CTRexScenario.router.config_pbr(mode = "config")
err = 'Client could not connect'
CTRexScenario.stl_init_error = err
if not self.connect():
self.fail(err)
err = 'Client could not map ports'
CTRexScenario.stl_init_error = err
if not self.map_ports():
self.fail(err)
print('Got ports mapping: %s' % CTRexScenario.stl_ports_map)
CTRexScenario.stl_init_error = None
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