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test_python_procman.py
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import re
import time
import subprocess
import unittest
import unit
class TestUnitPythonProcman(unit.TestUnitApplicationPython):
def setUpClass():
unit.TestUnit().check_modules('python')
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('^\s*(\d+)', m).group(1))
return pids
def setUp(self):
super().setUp()
self.app_name = "app-" + self.testdir.split('/')[-1]
self.load('empty', self.app_name)
def test_python_processes_access(self):
self.conf('1', 'applications/' + self.app_name + '/processes')
self.assertIn('error', self.conf_get('/applications/' + self.app_name +
'/processes/max'), 'max no access')
self.assertIn('error', self.conf_get('/applications/' + self.app_name +
'/processes/spare'), 'spare no access')
self.assertIn('error', self.conf_get('/applications/' + self.app_name +
'/processes/idle_timeout'), 'idle_timeout no access')
def test_python_processes_spare_negative(self):
self.assertIn('error', self.conf({
"spare": -1
}, 'applications/' + self.app_name + '/processes'), 'negative spare')
def test_python_processes_max_negative(self):
self.assertIn('error', self.conf({
"max": -1
}, 'applications/' + self.app_name + '/processes'), 'negative max')
def test_python_processes_idle_timeout_negative(self):
self.assertIn('error', self.conf({
"idle_timeout": -1
}, 'applications/' + self.app_name + '/processes'),
'negative idle_timeout')
def test_python_processes_spare_gt_max_default(self):
self.assertIn('error', self.conf({"spare": 2},
'applications/' + self.app_name + '/processes'),
'spare greater than max default')
def test_python_processes_spare_gt_max(self):
self.assertIn('error', self.conf({
"spare": 2,
"max": 1,
"idle_timeout": 1
}, '/applications/' + self.app_name + '/processes'),
'spare greater than max')
def test_python_processes_max_zero(self):
self.assertIn('error', self.conf({
"spare": 0,
"max": 0,
"idle_timeout": 1
}, 'applications/' + self.app_name + '/processes'), 'max 0')
def test_python_processes_idle_timeout_zero(self):
self.conf({
"spare": 0,
"max": 2,
"idle_timeout": 0
}, 'applications/' + self.app_name + '/processes')
self.get()
self.assertEqual(len(self.pids_for_process()), 0, 'idle timeout 0')
def test_python_prefork(self):
self.conf('2', 'applications/' + self.app_name + '/processes')
pids = self.pids_for_process()
self.assertEqual(len(pids), 2, 'prefork 2')
self.get()
self.assertSetEqual(self.pids_for_process(), pids, 'prefork still 2')
self.conf('4', 'applications/' + self.app_name + '/processes')
pids = self.pids_for_process()
self.assertEqual(len(pids), 4, 'prefork 4')
self.get()
self.assertSetEqual(self.pids_for_process(), pids, 'prefork still 4')
self.stop_all()
@unittest.expectedFailure
def test_python_prefork_same_processes(self):
self.conf('2', 'applications/' + self.app_name + '/processes')
pids = self.pids_for_process()
self.conf('4', 'applications/' + self.app_name + '/processes')
pids_new = self.pids_for_process()
self.assertTrue(pids.issubset(pids_new), 'prefork same processes')
def test_python_ondemand(self):
self.conf({
"spare": 0,
"max": 8,
"idle_timeout": 1
}, 'applications/' + self.app_name + '/processes')
self.assertEqual(len(self.pids_for_process()), 0, 'on-demand 0')
self.get()
pids = self.pids_for_process()
self.assertEqual(len(pids), 1, 'on-demand 1')
self.get()
self.assertSetEqual(self.pids_for_process(), pids, 'on-demand still 1')
time.sleep(1)
self.assertEqual(len(self.pids_for_process()), 0, 'on-demand stop idle')
self.stop_all()
def test_python_scale_updown(self):
self.conf({
"spare": 2,
"max": 8,
"idle_timeout": 1
}, 'applications/' + self.app_name + '/processes')
pids = self.pids_for_process()
self.assertEqual(len(pids), 2, 'updown 2')
self.get()
pids_new = self.pids_for_process()
self.assertEqual(len(pids_new), 3, 'updown 3')
self.assertTrue(pids.issubset(pids_new), 'updown 3 only 1 new')
self.get()
self.assertSetEqual(self.pids_for_process(), pids_new, 'updown still 3')
time.sleep(1)
pids = self.pids_for_process()
self.assertEqual(len(pids), 2, 'updown stop idle')
self.get()
pids_new = self.pids_for_process()
self.assertEqual(len(pids_new), 3, 'updown again 3')
self.assertTrue(pids.issubset(pids_new), 'updown again 3 only 1 new')
self.stop_all()
def test_python_reconfigure(self):
self.conf({
"spare": 2,
"max": 6,
"idle_timeout": 1
}, 'applications/' + self.app_name + '/processes')
pids = self.pids_for_process()
self.assertEqual(len(pids), 2, 'reconf 2')
self.get()
pids_new = self.pids_for_process()
self.assertEqual(len(pids_new), 3, 'reconf 3')
self.assertTrue(pids.issubset(pids_new), 'reconf 3 only 1 new')
self.conf('6', 'applications/' + self.app_name + '/processes/spare')
pids = self.pids_for_process()
self.assertEqual(len(pids), 6, 'reconf 6')
self.get()
self.assertSetEqual(self.pids_for_process(), pids, 'reconf still 6')
self.stop_all()
def test_python_idle_timeout(self):
self.conf({
"spare": 0,
"max": 6,
"idle_timeout": 2
}, 'applications/' + self.app_name + '/processes')
self.get()
pids = self.pids_for_process()
self.assertEqual(len(pids), 1, 'idle timeout 1')
time.sleep(1)
self.get()
time.sleep(1)
pids_new = self.pids_for_process()
self.assertEqual(len(pids_new), 1, 'idle timeout still 1')
self.assertSetEqual(self.pids_for_process(), pids,
'idle timeout still 1 same pid')
time.sleep(1)
self.assertEqual(len(self.pids_for_process()), 0, 'idle timed out')
def test_python_processes_connection_keepalive(self):
self.conf({
"spare": 0,
"max": 6,
"idle_timeout": 2
}, 'applications/' + self.app_name + '/processes')
(resp, sock) = self.get(headers={
'Host': 'localhost',
'Connection': 'keep-alive'
}, start=True, read_timeout=1)
self.assertEqual(len(self.pids_for_process()), 1,
'keepalive connection 1')
time.sleep(2)
self.assertEqual(len(self.pids_for_process()), 0, 'keepalive connection 0')
sock.close()
def stop_all(self):
self.conf({
"listeners": {},
"applications": {}
})
self.assertEqual(len(self.pids_for_process()), 0, 'stop all')
if __name__ == '__main__':
TestUnitPythonProcman.main()