The Gatekeeper, or a project gating system
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# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# 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.
import daemon
import logging
import os
import sys
import extras
import fixtures
import testtools
from tests.base import iterate_timeout
# as of python-daemon 1.6 it doesn't bundle pidlockfile anymore
# instead it depends on lockfile-0.9.1 which uses pidfile.
pid_file_module = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
def daemon_test(pidfile, flagfile):
pid = pid_file_module.TimeoutPIDLockFile(pidfile, 10)
with daemon.DaemonContext(pidfile=pid):
for x in iterate_timeout(30, "flagfile to be removed"):
if not os.path.exists(flagfile):
break
sys.exit(0)
class TestDaemon(testtools.TestCase):
log = logging.getLogger("zuul.test.daemon")
def setUp(self):
super(TestDaemon, self).setUp()
self.test_root = self.useFixture(fixtures.TempDir(
rootdir=os.environ.get("ZUUL_TEST_ROOT"))).path
def test_daemon(self):
pidfile = os.path.join(self.test_root, "daemon.pid")
flagfile = os.path.join(self.test_root, "daemon.flag")
open(flagfile, 'w').close()
if not os.fork():
self._cleanups = []
daemon_test(pidfile, flagfile)
for x in iterate_timeout(30, "daemon to start"):
if os.path.exists(pidfile):
break
os.unlink(flagfile)
for x in iterate_timeout(30, "daemon to stop"):
if not os.path.exists(pidfile):
break