Files
patroni/tests/test_utils.py
Igor Yanchenko 7ff27d9e10 Make sure unix_socket_directories and stats_temp_directory exist (#1293)
Upon the start of Patroni and Postgres make sure that unix_socket_directories and stats_temp_directory exist or try to create them. Patroni will exit if failed to create them.

Close https://github.com/zalando/patroni/issues/863
2019-12-11 12:26:17 +01:00

82 lines
2.7 KiB
Python

import unittest
from mock import Mock, patch
from patroni.exceptions import PatroniException
from patroni.utils import Retry, RetryFailedError, polling_loop, validate_directory
class TestUtils(unittest.TestCase):
def test_polling_loop(self):
self.assertEqual(list(polling_loop(0.001, interval=0.001)), [0])
@patch('os.path.exists', Mock(return_value=True))
@patch('os.path.isdir', Mock(return_value=True))
@patch('tempfile.mkstemp', Mock(return_value=("", "")))
@patch('os.remove', Mock(side_effect=Exception))
def test_validate_directory_writable(self):
self.assertRaises(Exception, validate_directory, "/tmp")
@patch('os.path.exists', Mock(return_value=True))
@patch('os.path.isdir', Mock(return_value=True))
@patch('tempfile.mkstemp', Mock(side_effect=OSError))
def test_validate_directory_not_writable(self):
self.assertRaises(PatroniException, validate_directory, "/tmp")
@patch('os.path.exists', Mock(return_value=False))
@patch('os.makedirs', Mock(side_effect=OSError))
def test_validate_directory_couldnt_create(self):
self.assertRaises(PatroniException, validate_directory, "/tmp")
@patch('os.path.exists', Mock(return_value=True))
@patch('os.path.isdir', Mock(return_value=False))
def test_validate_directory_is_not_a_directory(self):
self.assertRaises(PatroniException, validate_directory, "/tmp")
@patch('time.sleep', Mock())
class TestRetrySleeper(unittest.TestCase):
@staticmethod
def _fail(times=1):
scope = dict(times=0)
def inner():
if scope['times'] >= times:
pass
else:
scope['times'] += 1
raise PatroniException('Failed!')
return inner
def test_reset(self):
retry = Retry(delay=0, max_tries=2)
retry(self._fail())
self.assertEqual(retry._attempts, 1)
retry.reset()
self.assertEqual(retry._attempts, 0)
def test_too_many_tries(self):
retry = Retry(delay=0)
self.assertRaises(RetryFailedError, retry, self._fail(times=999))
self.assertEqual(retry._attempts, 1)
def test_maximum_delay(self):
retry = Retry(delay=10, max_tries=100)
retry(self._fail(times=10))
self.assertTrue(retry._cur_delay < 4000, retry._cur_delay)
# gevent's sleep function is picky about the type
self.assertEqual(type(retry._cur_delay), float)
def test_deadline(self):
retry = Retry(deadline=0.0001)
self.assertRaises(RetryFailedError, retry, self._fail(times=100))
def test_copy(self):
def _sleep(t):
pass
retry = Retry(sleep_func=_sleep)
rcopy = retry.copy()
self.assertTrue(rcopy.sleep_func is _sleep)