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#!/usr/bin/env python
# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from cStringIO import StringIO
import os
import pexpect
import signal
import subprocess
import sys
import time
TIMEOUT=10
RESULT_ID_TIMEOUT = 0
RESULT_ID_PASS = 1
RESULT_ID_FAIL = 2
RESULT_ID_EOF = 3
EXPECT_LIST = [pexpect.TIMEOUT, 'Pass!', 'Fail!', pexpect.EOF]
PS_ARGS = ['ps', '--no-headers', '-o', 'stat', '--pid']
class Tee(object):
def __init__(self, target):
self._target = target
def write(self, data):
sys.stdout.write(data)
self._target.write(data)
def flush(self):
sys.stdout.flush()
self._target.flush()
def RunOnce(test_name, log, env):
child = pexpect.spawn('build/host/{0}/{0}.exe'.format(test_name),
timeout=TIMEOUT, env=env)
child.logfile = log
try:
return child.expect(EXPECT_LIST)
finally:
if child.isalive():
ps_cmd = PS_ARGS + ['%d' % (child.pid)]
ps_stat = subprocess.check_output(ps_cmd).strip()
log.write('\n*** test %s process %d in state %s ***\n' %
(test_name, child.pid, ps_stat))
child.kill(signal.SIGTERM)
child.read()
# ASAN_OPTIONS environment variable is only required when test is built with
# ASan, but is otherwise harmless.
env = dict(os.environ)
env["ASAN_OPTIONS"] = "log_path=stderr"
log = StringIO()
tee_log = Tee(log)
test_name = sys.argv[1]
start_time = time.time()
result_id = RunOnce(test_name, tee_log, env)
elapsed_time = time.time() - start_time
if result_id == RESULT_ID_TIMEOUT:
sys.stderr.write('Test %s timed out after %d seconds!\n' %
(test_name, TIMEOUT))
failed = True
elif result_id == RESULT_ID_PASS:
sys.stderr.write('Test %s passed! (%.3f seconds)\n' %
(test_name, elapsed_time))
failed = False
elif result_id == RESULT_ID_FAIL:
sys.stderr.write('Test %s failed! (%.3f seconds)\n' %
(test_name, elapsed_time))
failed = True
elif result_id == RESULT_ID_EOF:
sys.stderr.write('Test %s terminated unexpectedly! (%.3f seconds)\n' %
(test_name, elapsed_time))
failed = True
if failed:
sys.stderr.write('\n====== Emulator output ======\n')
sys.stderr.write(log.getvalue())
sys.stderr.write('\n=============================\n')
sys.exit(1)
else:
sys.exit(0)
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