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'''
run the command under test, under valgrind and collect memory leak info
as a separate test.
'''
import os
import re
import signal
from string import Template
import subprocess
import time
from TdcPlugin import TdcPlugin
from TdcResults import *
from tdc_config import *
def vp_extract_num_from_string(num_as_string_maybe_with_commas):
return int(num_as_string_maybe_with_commas.replace(',',''))
class SubPlugin(TdcPlugin):
def __init__(self):
self.sub_class = 'valgrind/SubPlugin'
self.tap = ''
self._tsr = TestSuiteReport()
super().__init__()
def pre_suite(self, testcount, testidlist):
'''run commands before test_runner goes into a test loop'''
super().pre_suite(testcount, testidlist)
if self.args.verbose > 1:
print('{}.pre_suite'.format(self.sub_class))
if self.args.valgrind:
self._add_to_tap('1..{}\n'.format(self.testcount))
def post_suite(self, index):
'''run commands after test_runner goes into a test loop'''
super().post_suite(index)
if self.args.verbose > 1:
print('{}.post_suite'.format(self.sub_class))
#print('{}'.format(self.tap))
for xx in range(index - 1, self.testcount):
res = TestResult('{}-mem'.format(self.testidlist[xx]), 'Test skipped')
res.set_result(ResultState.skip)
res.set_errormsg('Skipped because of prior setup/teardown failure')
self._add_results(res)
if self.args.verbose < 4:
subprocess.check_output('rm -f vgnd-*.log', shell=True)
def add_args(self, parser):
super().add_args(parser)
self.argparser_group = self.argparser.add_argument_group(
'valgrind',
'options for valgrindPlugin (run command under test under Valgrind)')
self.argparser_group.add_argument(
'-V', '--valgrind', action='store_true',
help='Run commands under valgrind')
return self.argparser
def adjust_command(self, stage, command):
super().adjust_command(stage, command)
cmdform = 'list'
cmdlist = list()
if not self.args.valgrind:
return command
if self.args.verbose > 1:
print('{}.adjust_command'.format(self.sub_class))
if not isinstance(command, list):
cmdform = 'str'
cmdlist = command.split()
else:
cmdlist = command
if stage == 'execute':
if self.args.verbose > 1:
print('adjust_command: stage is {}; inserting valgrind stuff in command [{}] list [{}]'.
format(stage, command, cmdlist))
cmdlist.insert(0, '--track-origins=yes')
cmdlist.insert(0, '--show-leak-kinds=definite,indirect')
cmdlist.insert(0, '--leak-check=full')
cmdlist.insert(0, '--log-file=vgnd-{}.log'.format(self.args.testid))
cmdlist.insert(0, '-v') # ask for summary of non-leak errors
cmdlist.insert(0, ENVIR['VALGRIND_BIN'])
else:
pass
if cmdform == 'str':
command = ' '.join(cmdlist)
else:
command = cmdlist
if self.args.verbose > 1:
print('adjust_command: return command [{}]'.format(command))
return command
def post_execute(self):
if not self.args.valgrind:
return
self.definitely_lost_re = re.compile(
r'definitely lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\sblocks', re.MULTILINE | re.DOTALL)
self.indirectly_lost_re = re.compile(
r'indirectly lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
self.possibly_lost_re = re.compile(
r'possibly lost:\s+([,0-9]+)bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
self.non_leak_error_re = re.compile(
r'ERROR SUMMARY:\s+([,0-9]+) errors from\s+([,0-9]+)\s+contexts', re.MULTILINE | re.DOTALL)
def_num = 0
ind_num = 0
pos_num = 0
nle_num = 0
# what about concurrent test runs? Maybe force them to be in different directories?
with open('vgnd-{}.log'.format(self.args.testid)) as vfd:
content = vfd.read()
def_mo = self.definitely_lost_re.search(content)
ind_mo = self.indirectly_lost_re.search(content)
pos_mo = self.possibly_lost_re.search(content)
nle_mo = self.non_leak_error_re.search(content)
if def_mo:
def_num = int(def_mo.group(2))
if ind_mo:
ind_num = int(ind_mo.group(2))
if pos_mo:
pos_num = int(pos_mo.group(2))
if nle_mo:
nle_num = int(nle_mo.group(1))
mem_results = ''
res = TestResult('{}-mem'.format(self.args.testid),
'{} memory leak check'.format(self.args.test_name))
if (def_num > 0) or (ind_num > 0) or (pos_num > 0) or (nle_num > 0):
mem_results += 'not '
res.set_result(ResultState.fail)
res.set_failmsg('Memory leak detected')
res.append_failmsg(content)
else:
res.set_result(ResultState.success)
self._add_results(res)
mem_results += 'ok {} - {}-mem # {}\n'.format(
self.args.test_ordinal, self.args.testid, 'memory leak check')
self._add_to_tap(mem_results)
if mem_results.startswith('not '):
print('{}'.format(content))
self._add_to_tap(content)
def _add_results(self, res):
self._tsr.add_resultdata(res)
def _add_to_tap(self, more_tap_output):
self.tap += more_tap_output
|
