def test_it_cannot_set_causation_id_twice(self):
domain_event = EventA("0A919B3E-5BCB-41DC-B157-8A9E2A7198BE", "foo")
domain_event.set_causation_id("6C28E7B7-61A1-432D-8778-DA94BE334969")
with self.assertRaises(DomainEventException) as ex:
domain_event.set_causation_id("4AFA7DC7-5268-4BE9-B065-27D19CE4DD5F")
self.assertEqual(str(ex.exception), "Causation id can only be set once!")
def test_it_can_set_correct_causation_ids(self):
""" test if SQLStore can deal properly with causation ids """
store = SQLStore(self.__session)
aggr_root = '897878D0-1230-408B-A980-7A9C24EBDEFA'
event1 = EventA(aggr_root, 'my_prop')
event1.set_aggregate_root_version(1)
event2 = EventA(aggr_root, 'my_prop1')
event2.set_aggregate_root_version(2)
event3 = EventA(aggr_root, 'my_prop2')
event3.set_aggregate_root_version(3)
eventstream = [
event1,
event2,
event3
]
store.save(eventstream, aggr_root)
# stored_eventstream: List[DomainEvent]
stored_eventstream = store.load(aggr_root)
event4 = EventA(aggr_root, 'my_prop')
event4.set_aggregate_root_version(4)
event4.set_causation_id(stored_eventstream[1].get_event_id())
event5 = EventA(aggr_root, 'my_prop1')
event5.set_aggregate_root_version(5)
event5.set_causation_id(stored_eventstream[1].get_event_id())
eventstream = [
event4,
event5
]
store.save(eventstream, aggr_root)
stored_eventstream = store.load(aggr_root)
self.assertEqual(5, len(stored_eventstream))
self.assertEqual(
stored_eventstream[1].get_event_id(),
stored_eventstream[2].get_causation_id()
)
self.assertEqual(
aggr_root,
stored_eventstream[2].get_correlation_id()
)
self.assertEqual(
stored_eventstream[1].get_event_id(),
stored_eventstream[3].get_causation_id()
)
self.assertEqual(
aggr_root,
stored_eventstream[3].get_correlation_id()
)
self.assertEqual(
stored_eventstream[1].get_event_id(),
stored_eventstream[4].get_causation_id()
)
self.assertEqual(
aggr_root,
stored_eventstream[4].get_correlation_id()
)