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import re
import shutil
import subprocess
import time
import pytest
from unit.applications.lang.python import TestApplicationPython
from unit.option import option
class TestPythonProcman(TestApplicationPython):
prerequisites = {'modules': {'python': 'any'}}
def setup_method(self):
self.app_name = "app-" + option.temp_dir.split('/')[-1]
self.app_proc = 'applications/' + self.app_name + '/processes'
self.load('empty', self.app_name)
def pids_for_process(self):
time.sleep(0.2)
output = subprocess.check_output(['ps', 'ax'])
pids = set()
for m in re.findall('.*' + self.app_name, output.decode()):
pids.add(re.search(r'^\s*(\d+)', m).group(1))
return pids
def conf_proc(self, conf, path=None):
if path is None:
path = self.app_proc
assert 'success' in self.conf(conf, path), 'configure processes'
@pytest.mark.skip('not yet')
def test_python_processes_idle_timeout_zero(self):
self.conf_proc({"spare": 0, "max": 2, "idle_timeout": 0})
self.get()
assert len(self.pids_for_process()) == 0, 'idle timeout 0'
def test_python_prefork(self):
self.conf_proc('2')
pids = self.pids_for_process()
assert len(pids) == 2, 'prefork 2'
self.get()
assert self.pids_for_process() == pids, 'prefork still 2'
self.conf_proc('4')
pids = self.pids_for_process()
assert len(pids) == 4, 'prefork 4'
self.get()
assert self.pids_for_process() == pids, 'prefork still 4'
self.stop_all()
@pytest.mark.skip('not yet')
def test_python_prefork_same_processes(self):
self.conf_proc('2')
pids = self.pids_for_process()
self.conf_proc('4')
pids_new = self.pids_for_process()
assert pids.issubset(pids_new), 'prefork same processes'
def test_python_ondemand(self):
self.conf_proc({"spare": 0, "max": 8, "idle_timeout": 1})
assert len(self.pids_for_process()) == 0, 'on-demand 0'
self.get()
pids = self.pids_for_process()
assert len(pids) == 1, 'on-demand 1'
self.get()
assert self.pids_for_process() == pids, 'on-demand still 1'
time.sleep(1)
assert len(self.pids_for_process()) == 0, 'on-demand stop idle'
self.stop_all()
def test_python_scale_updown(self):
self.conf_proc({"spare": 2, "max": 8, "idle_timeout": 1})
pids = self.pids_for_process()
assert len(pids) == 2, 'updown 2'
self.get()
pids_new = self.pids_for_process()
assert len(pids_new) == 3, 'updown 3'
assert pids.issubset(pids_new), 'updown 3 only 1 new'
self.get()
assert self.pids_for_process() == pids_new, 'updown still 3'
time.sleep(1)
pids = self.pids_for_process()
assert len(pids) == 2, 'updown stop idle'
self.get()
pids_new = self.pids_for_process()
assert len(pids_new) == 3, 'updown again 3'
assert pids.issubset(pids_new), 'updown again 3 only 1 new'
self.stop_all()
def test_python_reconfigure(self):
self.conf_proc({"spare": 2, "max": 6, "idle_timeout": 1})
pids = self.pids_for_process()
assert len(pids) == 2, 'reconf 2'
self.get()
pids_new = self.pids_for_process()
assert len(pids_new) == 3, 'reconf 3'
assert pids.issubset(pids_new), 'reconf 3 only 1 new'
self.conf_proc('6', self.app_proc + '/spare')
pids = self.pids_for_process()
assert len(pids) == 6, 'reconf 6'
self.get()
assert self.pids_for_process() == pids, 'reconf still 6'
self.stop_all()
def test_python_idle_timeout(self):
self.conf_proc({"spare": 0, "max": 6, "idle_timeout": 2})
self.get()
pids = self.pids_for_process()
assert len(pids) == 1, 'idle timeout 1'
time.sleep(1)
self.get()
time.sleep(1)
pids_new = self.pids_for_process()
assert len(pids_new) == 1, 'idle timeout still 1'
assert self.pids_for_process() == pids, 'idle timeout still 1 same pid'
time.sleep(1)
assert len(self.pids_for_process()) == 0, 'idle timed out'
def test_python_processes_connection_keepalive(self):
self.conf_proc({"spare": 0, "max": 6, "idle_timeout": 2})
(resp, sock) = self.get(
headers={'Host': 'localhost', 'Connection': 'keep-alive'},
start=True,
read_timeout=1,
)
assert len(self.pids_for_process()) == 1, 'keepalive connection 1'
time.sleep(2)
assert len(self.pids_for_process()) == 0, 'keepalive connection 0'
sock.close()
def test_python_processes_access(self):
self.conf_proc('1')
path = '/' + self.app_proc
assert 'error' in self.conf_get(path + '/max')
assert 'error' in self.conf_get(path + '/spare')
assert 'error' in self.conf_get(path + '/idle_timeout')
def test_python_processes_invalid(self):
assert 'error' in self.conf(
{"spare": -1}, self.app_proc
), 'negative spare'
assert 'error' in self.conf({"max": -1}, self.app_proc), 'negative max'
assert 'error' in self.conf(
{"idle_timeout": -1}, self.app_proc
), 'negative idle_timeout'
assert 'error' in self.conf(
{"spare": 2}, self.app_proc
), 'spare gt max default'
assert 'error' in self.conf(
{"spare": 2, "max": 1}, self.app_proc
), 'spare gt max'
assert 'error' in self.conf(
{"spare": 0, "max": 0}, self.app_proc
), 'max zero'
def stop_all(self):
assert 'success' in self.conf({"listeners": {}, "applications": {}})
assert len(self.pids_for_process()) == 0, 'stop all'
def test_python_restart(self, temp_dir):
shutil.copyfile(
option.test_dir + '/python/restart/v1.py', temp_dir + '/wsgi.py'
)
self.load(
temp_dir,
name=self.app_name,
processes=1,
environment={'PYTHONDONTWRITEBYTECODE': '1'},
)
b = self.get()['body']
assert b == "v1", 'process started'
shutil.copyfile(
option.test_dir + '/python/restart/v2.py', temp_dir + '/wsgi.py'
)
b = self.get()['body']
assert b == "v1", 'still old process'
assert 'success' in self.conf_get(
'/control/applications/' + self.app_name + '/restart'
), 'restart processes'
b = self.get()['body']
assert b == "v2", 'new process started'
assert 'error' in self.conf_get(
'/control/applications/blah/restart'
), 'application incorrect'
assert 'error' in self.conf_delete(
'/control/applications/' + self.app_name + '/restart'
), 'method incorrect'
def test_python_restart_multi(self):
self.conf_proc('2')
pids = self.pids_for_process()
assert len(pids) == 2, 'restart 2 started'
assert 'success' in self.conf_get(
'/control/applications/' + self.app_name + '/restart'
), 'restart processes'
new_pids = self.pids_for_process()
assert len(new_pids) == 2, 'restart still 2'
assert len(new_pids.intersection(pids)) == 0, 'restart all new'
def test_python_restart_longstart(self):
self.load(
'restart',
name=self.app_name,
module="longstart",
processes={"spare": 1, "max": 2, "idle_timeout": 5},
)
assert len(self.pids_for_process()) == 1, 'longstarts == 1'
self.get()
pids = self.pids_for_process()
assert len(pids) == 2, 'longstarts == 2'
assert 'success' in self.conf_get(
'/control/applications/' + self.app_name + '/restart'
), 'restart processes'
# wait for longstarted app
time.sleep(2)
new_pids = self.pids_for_process()
assert len(new_pids) == 1, 'restart 1'
assert len(new_pids.intersection(pids)) == 0, 'restart all new'
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