def failing_task():
tasks.acquire_lock("dummylock", 3600)
try:
models.Video.objects.create(public_id="id")
models.Video.objects.create(public_id="id")
finally:
tasks.release_lock("dummylock")
def test_context_manager(self):
# 1) Lock is available
with tasks.Lock("dummylock") as lock:
self.assertTrue(lock.is_acquired)
self.assertRaises(exceptions.LockUnavailable, tasks.acquire_lock,
"dummylock")
self.assertFalse(lock.is_acquired)
# 2) Lock is unavailable
tasks.acquire_lock("dummylock")
with tasks.Lock("dummylock") as lock:
self.assertFalse(lock.is_acquired)
self.assertRaises(exceptions.LockUnavailable, tasks.acquire_lock,
"dummylock")
def test_release_lock_with_integrity_error(self):
def failing_task():
tasks.acquire_lock("dummylock", 3600)
try:
models.Video.objects.create(public_id="id")
models.Video.objects.create(public_id="id")
finally:
tasks.release_lock("dummylock")
self.assertRaises(IntegrityError, failing_task)
self.assertTrue(tasks.acquire_lock("dummylock"))
def test_acquire_release_lock_cycle(self):
self.assertTrue(tasks.acquire_lock("dummylock"))
self.assertRaises(exceptions.LockUnavailable, tasks.acquire_lock,
"dummylock")
tasks.release_lock("dummylock")
self.assertTrue(tasks.acquire_lock("dummylock"))
