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# Copyright 2015-2016 Intel Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""IntegrationTestCase class
"""
import os
import time
import logging
import copy
from testcases import TestCase
from conf import settings as S
from collections import OrderedDict
from tools import namespace
from tools import veth
from core.loader import Loader
CHECK_PREFIX = 'validate_'
class IntegrationTestCase(TestCase):
"""IntegrationTestCase class
"""
def __init__(self, cfg):
""" Testcase initialization
"""
self._type = 'integration'
super(IntegrationTestCase, self).__init__(cfg)
self._logger = logging.getLogger(__name__)
self._inttest = None
def report_status(self, label, status):
""" Log status of test step
"""
self._logger.info("%s ... %s", label, 'OK' if status else 'FAILED')
def run_initialize(self):
""" Prepare test execution environment
"""
super(IntegrationTestCase, self).run_initialize()
self._inttest = {'status' : True, 'details' : ''}
def run(self):
"""Run the test
All setup and teardown through controllers is included.
"""
def eval_step_params(params, step_result):
""" Evaluates referrences to results from previous steps
"""
def eval_param(param, STEP):
""" Helper function
"""
if isinstance(param, str):
tmp_param = ''
# evaluate every #STEP reference inside parameter itself
for chunk in param.split('#'):
if chunk.startswith('STEP['):
tmp_param = tmp_param + str(eval(chunk))
else:
tmp_param = tmp_param + chunk
return tmp_param
elif isinstance(param, list) or isinstance(param, tuple):
tmp_list = []
for item in param:
tmp_list.append(eval_param(item, STEP))
return tmp_list
elif isinstance(param, dict):
tmp_dict = {}
for (key, value) in param.items():
tmp_dict[key] = eval_param(value, STEP)
return tmp_dict
else:
return param
eval_params = []
# evaluate all parameters if needed
for param in params:
eval_params.append(eval_param(param, step_result))
return eval_params
# prepare test execution environment
self.run_initialize()
try:
with self._vswitch_ctl, self._loadgen:
with self._vnf_ctl, self._collector:
if not self._vswitch_none:
self._add_flows()
# run traffic generator if requested, otherwise wait for manual termination
if S.getValue('mode') == 'trafficgen-off':
time.sleep(2)
self._logger.debug("All is set. Please run traffic generator manually.")
input(os.linesep + "Press Enter to terminate vswitchperf..." + os.linesep + os.linesep)
else:
with self._traffic_ctl:
if not self.test:
self._traffic_ctl.send_traffic(self._traffic)
else:
vnf_list = {}
loader = Loader()
# execute test based on TestSteps definition
if self.test:
step_result = [None] * len(self.test)
for i, step in enumerate(self.test):
step_ok = False
if step[0] == 'vswitch':
test_object = self._vswitch_ctl.get_vswitch()
elif step[0] == 'namespace':
test_object = namespace
elif step[0] == 'veth':
test_object = veth
elif step[0] == 'trafficgen':
test_object = self._traffic_ctl
# in case of send_traffic method, ensure that specified
# traffic values are merged with existing self._traffic
if step[1] == 'send_traffic':
tmp_traffic = copy.deepcopy(self._traffic)
tmp_traffic.update(step[2])
step[2] = tmp_traffic
elif step[0].startswith('vnf'):
if not step[0] in vnf_list:
# initialize new VM and copy data to its shared dir
vnf_list[step[0]] = loader.get_vnf_class()()
self._copy_fwd_tools_for_guest(len(vnf_list))
test_object = vnf_list[step[0]]
else:
self._logger.error("Unsupported test object %s", step[0])
self._inttest = {'status' : False, 'details' : ' '.join(step)}
self.report_status("Step '{}'".format(' '.join(step)), self._inttest['status'])
break
test_method = getattr(test_object, step[1])
test_method_check = getattr(test_object, CHECK_PREFIX + step[1])
step_params = []
if test_method and test_method_check and \
callable(test_method) and callable(test_method_check):
try:
step_params = eval_step_params(step[2:], step_result)
step_log = '{} {}'.format(' '.join(step[:2]), step_params)
step_result[i] = test_method(*step_params)
self._logger.debug("Step %s '%s' results '%s'", i,
step_log, step_result[i])
time.sleep(5)
step_ok = test_method_check(step_result[i], *step_params)
except AssertionError:
self._inttest = {'status' : False, 'details' : step_log}
self._logger.error("Step %s raised assertion error", i)
# stop vnfs in case of error
for vnf in vnf_list:
vnf_list[vnf].stop()
break
except IndexError:
self._inttest = {'status' : False, 'details' : step_log}
self._logger.error("Step %s result index error %s", i,
' '.join(step[2:]))
# stop vnfs in case of error
for vnf in vnf_list:
vnf_list[vnf].stop()
break
self.report_status("Step {} - '{}'".format(i, step_log), step_ok)
if not step_ok:
self._inttest = {'status' : False, 'details' : step_log}
# stop vnfs in case of error
for vnf in vnf_list:
vnf_list[vnf].stop()
break
# dump vswitch flows before they are affected by VNF termination
if not self._vswitch_none:
self._vswitch_ctl.dump_vswitch_flows()
finally:
# tear down test execution environment and log results
self.run_finalize()
# report test results
self.run_report()
def run_report(self):
""" Report test results
"""
if self.test:
results = OrderedDict()
results['status'] = 'OK' if self._inttest['status'] else 'FAILED'
results['details'] = self._inttest['details']
TestCase.write_result_to_file([results], self._output_file)
self.report_status("Test '{}'".format(self.name), self._inttest['status'])
# inform vsperf about testcase failure
if not self._inttest['status']:
raise Exception
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