Files
mayan-edms/mayan/apps/lock_manager/tests/test_models.py
2015-08-18 23:06:26 -04:00

61 lines
1.8 KiB
Python

from __future__ import unicode_literals
import time
from django.test import TestCase
from ..exceptions import LockError
from ..models import Lock
class LockTestCase(TestCase):
def test_exclusive(self):
lock_1 = Lock.objects.acquire_lock(name='test_lock_1')
with self.assertRaises(LockError):
Lock.objects.acquire_lock(name='test_lock_1')
# Cleanup
lock_1.release()
def test_release(self):
lock_1 = Lock.objects.acquire_lock(name='test_lock_1')
lock_1.release()
lock_2 = Lock.objects.acquire_lock(name='test_lock_1')
# Cleanup
lock_2.release()
def test_timeout_expired(self):
Lock.objects.acquire_lock(name='test_lock_1', timeout=1)
# lock_1 not release and not expired, should raise LockError
with self.assertRaises(LockError):
Lock.objects.acquire_lock(name='test_lock_1')
time.sleep(2)
# lock_1 not release but has expired, should not raise LockError
lock_2 = Lock.objects.acquire_lock(name='test_lock_1')
# Cleanup
lock_2.release()
def test_double_release(self):
lock_1 = Lock.objects.acquire_lock(name='test_lock_1')
lock_1.release()
def test_release_expired(self):
lock_1 = Lock.objects.acquire_lock(name='test_lock_1', timeout=1)
time.sleep(2)
lock_1.release()
# No exception is raised even though the lock has expired.
# The logic is that checking for expired locks during release is
# not necesary as any attempt by someone else to aquire the lock
# would be successfull, even after an extended lapse of time
def test_release_expired_reaquired(self):
time.sleep(2)
lock_2 = Lock.objects.acquire_lock(name='test_lock_1', timeout=1)
# Cleanup
lock_2.release()