def test_get_entity_events(self): repo = PythonObjectsStoredEventRepository() event_store = EventStore(stored_event_repo=repo) # Check there are zero stored events in the repo. entity_events = event_store.get_entity_events(stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(0, len(entity_events)) # Store a domain event. event1 = Example.Created(entity_id='entity1', a=1, b=2) event_store.append(event1) # Check there is one event in the event store. entity_events = event_store.get_entity_events(stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(1, len(entity_events)) # Store another domain event. event1 = Example.AttributeChanged(entity_id='entity1', a=1, b=2, entity_version=1) event_store.append(event1) # Check there are two events in the event store. entity_events = event_store.get_entity_events(stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(2, len(entity_events)) # Check there are two events in the event store. entity_events = event_store.get_entity_events(stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(2, len(entity_events))
def test_get_entity(self): # Setup an event store, using Python objects. event_store = EventStore( stored_event_repo=PythonObjectsStoredEventRepository()) # Store example events. event1 = Example.Created(entity_id='entity1', a=1, b=2) event_store.append(event1) event2 = Example.Created(entity_id='entity2', a=2, b=4) event_store.append(event2) event3 = Example.Created(entity_id='entity3', a=3, b=6) event_store.append(event3) event4 = Example.Discarded(entity_id='entity3', entity_version=1) event_store.append(event4) # Check the event sourced entities are correct. # - just use a trivial mutate that always instantiates the 'Example'. event_player = EventPlayer(event_store=event_store, id_prefix='Example', mutate_func=Example.mutate) # The the reconstituted entity has correct attribute values. self.assertEqual('entity1', event_player.replay_events('entity1').id) self.assertEqual(1, event_player.replay_events('entity1').a) self.assertEqual(2, event_player.replay_events('entity2').a) self.assertEqual(None, event_player.replay_events('entity3')) # Check entity3 raises KeyError. self.assertEqual(event_player.replay_events('entity3'), None) # Check it works for "short" entities (should be faster, but the main thing is that it still works). # - just use a trivial mutate that always instantiates the 'Example'. event5 = Example.AttributeChanged(entity_id='entity1', entity_version=1, name='a', value=10) event_store.append(event5) event_player = EventPlayer(event_store=event_store, id_prefix='Example', mutate_func=Example.mutate) self.assertEqual(10, event_player.replay_events('entity1').a) event_player = EventPlayer( event_store=event_store, id_prefix='Example', mutate_func=Example.mutate, is_short=True, ) self.assertEqual(10, event_player.replay_events('entity1').a)
def test_get_entity(self): # Setup an event store, using Python objects. event_store = EventStore(stored_event_repo=PythonObjectsStoredEventRepository()) # Store example events. event1 = Example.Created(entity_id='entity1', a=1, b=2) event_store.append(event1) event2 = Example.Created(entity_id='entity2', a=2, b=4) event_store.append(event2) event3 = Example.Created(entity_id='entity3', a=3, b=6) event_store.append(event3) event4 = Example.Discarded(entity_id='entity3', entity_version=1) event_store.append(event4) # Check the event sourced entities are correct. # - just use a trivial mutate that always instantiates the 'Example'. event_player = EventPlayer(event_store=event_store, id_prefix='Example', mutate_func=Example.mutate) # The the reconstituted entity has correct attribute values. self.assertEqual('entity1', event_player.replay_events('entity1').id) self.assertEqual(1, event_player.replay_events('entity1').a) self.assertEqual(2, event_player.replay_events('entity2').a) self.assertEqual(None, event_player.replay_events('entity3')) # Check entity3 raises KeyError. self.assertEqual(event_player.replay_events('entity3'), None) # Check it works for "short" entities (should be faster, but the main thing is that it still works). # - just use a trivial mutate that always instantiates the 'Example'. event5 = Example.AttributeChanged(entity_id='entity1', entity_version=1, name='a', value=10) event_store.append(event5) event_player = EventPlayer(event_store=event_store, id_prefix='Example', mutate_func=Example.mutate) self.assertEqual(10, event_player.replay_events('entity1').a) event_player = EventPlayer( event_store=event_store, id_prefix='Example', mutate_func=Example.mutate, is_short=True, ) self.assertEqual(10, event_player.replay_events('entity1').a)
def test_get_item(self): # Setup an event store. stored_event_repo = PythonObjectsStoredEventRepository() event_store = EventStore(stored_event_repo=stored_event_repo) # Put an event in the event store. entity_id = 'entity1' event_store.append(Example.Created(entity_id=entity_id, a=1, b=2)) # Setup an example repository. example_repo = ExampleRepo(event_store=event_store) # Check the repo has the example. self.assertIn(entity_id, example_repo) self.assertNotIn('xxxxxxxx', example_repo) # Check the entity attributes. example = example_repo[entity_id] self.assertEqual(1, example.a) self.assertEqual(2, example.b) self.assertEqual(entity_id, example.id)
def test_get_entity_events(self): repo = PythonObjectsStoredEventRepository() event_store = EventStore(stored_event_repo=repo) # Check there are zero stored events in the repo. entity_events = event_store.get_entity_events( stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(0, len(entity_events)) # Store a domain event. event1 = Example.Created(entity_id='entity1', a=1, b=2) event_store.append(event1) # Check there is one event in the event store. entity_events = event_store.get_entity_events( stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(1, len(entity_events)) # Store another domain event. event1 = Example.AttributeChanged(entity_id='entity1', a=1, b=2, entity_version=1) event_store.append(event1) # Check there are two events in the event store. entity_events = event_store.get_entity_events( stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(2, len(entity_events)) # Check there are two events in the event store. entity_events = event_store.get_entity_events( stored_entity_id='Example::entity1') entity_events = list(entity_events) self.assertEqual(2, len(entity_events))