def test_MutexAutoLock_already_locked(self):
Mutex.get_n_lock('dummy_lock')
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
with self.assertRaises(MutexLockedException):
with MutexAutoLock('dummy_lock'):
self.fail('cannot be here with lock enabled')
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
def test_mutex_autolock_already_locked(self):
self.assertEqual(self.locked_func_legacy(12), 12)
self.assertEqual(0, Mutex.objects.filter(id='dummy_lock').count())
Mutex.get_n_lock('dummy_lock')
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
with self.assertRaises(MutexLockedException):
self.locked_func_legacy(5)
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
def test_MutexAutoLock_decorator_already_locked(self):
self.assertEqual(self.locked_func(12), 12)
self.assertEqual(0, Mutex.objects.filter(id='dummy_lock').count())
Mutex.get_n_lock('dummy_lock')
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
with self.assertRaises(MutexLockedException):
self.locked_func(5)
self.assertEqual(1, Mutex.objects.filter(id='dummy_lock').count())
def test_mutex_lock_twice_static_method(self):
"Double lock causes an error (get_n_lock static method)"
name = 'mutex-stuff'
mutex = Mutex.get_n_lock(name)
self.assertEqual(1, Mutex.objects.count())
with atomic():
self.assertRaises(MutexLockedException, Mutex.get_n_lock, name)
mutex.release()
self.assertEqual(0, Mutex.objects.count())
def test_mutex_lock_twice_same_instance(self):
"Double lock (on same instance) causes an error"
mutex = Mutex(id='mutex-01')
mutex.lock()
self.assertRaises(MutexLockedException, mutex.lock)
mutex.graceful_release('mutex-01')
def test_mutex_lock(self):
mutex = Mutex(id='mutex-01')
mutex.lock()
self.get_object_or_fail(Mutex, pk=mutex.id)
mutex.release()
self.assertEqual(0, Mutex.objects.count())
def test_mutex_lock(self):
mutex = Mutex(id='mutex-01')
mutex.lock()
self.get_object_or_fail(Mutex, pk=mutex.id)
mutex.release()
self.assertFalse(Mutex.objects.all())
def test_mutex_lock_twice_same_name(self):
"Double lock causes an error (lock method)"
name1 = 'mutex-01'
name2 = 'other_mutex'
mutex1 = Mutex(name1)
mutex2 = Mutex(name1)
mutex1.lock()
with atomic():
self.assertRaises(MutexLockedException, mutex2.lock)
self.assertEqual(1, Mutex.objects.count())
with self.assertNoException():
mutex3 = Mutex(name2)
mutex3.lock()
self.assertEqual([name1, name2], self._get_ids())
mutex1.release()
self.assertEqual([name2], self._get_ids())
def test_mutex_unlock_not_locked(self):
"Release an unlocked Mutex causes an error"
mutex = Mutex(id='mutex-01')
self.assertRaises(MutexNotLockedException, mutex.release)
mutex.graceful_release('mutex-01')
def tearDown(self):
# super(MutexTestCase, self).tearDown()
super().tearDown()
Mutex.graceful_release('dummy_lock')
def tearDown(self):
super().tearDown()
Mutex.graceful_release('dummy_lock')
