blob: 1c1058dd36c324401dd3d8257c3e02d72ee9b039 [file] [log] [blame] [edit]
import os, re, logging
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
class tsc(test.test):
version = 3
preserve_srcdir = True
def setup(self):
os.chdir(self.srcdir)
utils.make()
def initialize(self):
self.job.require_gcc()
def run_once(self, args = '-t 650'):
result = utils.run(self.srcdir + '/checktsc ' + args,
stdout_tee=open(os.path.join(self.resultsdir,
'checktsc.log'), 'w'),
ignore_status=True)
if result.exit_status != 0:
logging.error('Program checktsc exit status is %s',
result.exit_status)
default_reason = ("UNKNOWN FAILURE: rc=%d from %s" %
(result.exit_status, result.command))
## Analyze result.stdout to see if it is possible to form qualified
## reason of failure and to raise an appropriate exception.
## For this test we qualify the reason of failure if the
## following conditions are met:
## (i) result.exit_status = 1
## (ii) result.stdout ends with 'FAIL'
## (iii) "FAIL" is preceeded by one or more
## lines in the following format:
## CPU x - CPU y = <delta>
## Set as a reason the line that contains max abs(delta)
if result.exit_status == 1:
if result.stdout.strip('\n').endswith('FAIL'):
## find all lines
## CPU x - CPU y = <delta>
## and parse out delta of max abs value
max_delta = 0
reason = ''
threshold = int(args.split()[1])
latencies = re.findall("CPU \d+ - CPU \d+ =\s+-*\d+",
result.stdout)
for ln in latencies:
cur_delta = int(ln.split('=', 2)[1])
if abs(cur_delta) > max_delta:
max_delta = abs(cur_delta)
reason = ln
if max_delta > threshold:
reason = "Latency %s exceeds threshold %d" % (reason,
threshold)
raise error.TestFail(reason)
## If we are here, we failed to qualify the reason of test failre
## Consider it as a test error
raise error.TestError(default_reason)