def reserve(cls, *args, **kwargs):
try:
group = cls.objects.create()
AtomicReserver.non_transactional_reserve(*args, group=group, **kwargs)
transaction.commit()
return group
except:
transaction.rollback()
raise
def test_improper_atomic_reservation(self):
initial_count = RoomReservation.objects.count()
with self.assertRaises(ReservationError):
AtomicReserver.reserve(
(self.room5, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 3}),
(self.room1, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 1}),
(self.room3, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 5})
)
self.assertEqual(RoomReservation.objects.count(), initial_count,
'There should be no reservation objects added to the database')
def test_proper_atomic_reservation(self):
initial_count = RoomReservation.objects.count()
reservations = AtomicReserver.reserve(
(self.room5, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 3}),
(self.room1, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 1}),
(self.room3, {'start': '2012-04-01', 'end': '2012-05-12', 'size': 2})
)
self.assertEqual(len(reservations), 3, 'There should be 3 reservation objects returned')
self.assertEqual(reservations[0].size, 3, 'First reservation should have size equal to 3')
self.assertEqual(RoomReservation.objects.count(), initial_count + 3,
'There should be 3 reservation objects added to the database')