private async Task <Dictionary <Guid, IEventSourcedAggregateRoot> > LoadAggregatesAsync(Guid[] aggregateIds)
{
IReadOnlyDictionary <Guid, IReadOnlyDictionary <string, string> > eventStreamMetadata = await eventStore.BatchFindStreamMetadataAsync(aggregateIds);
IDictionary <Guid, IReadOnlyCollection <IEventStoreRecord> > eventRecords = await eventStore.BatchFindEventsAsync(aggregateIds);
return(eventStreamMetadata.ToDictionary(x => x.Key,
x =>
{
eventRecords.TryGetValue(x.Key, out var events);
return eventSourcedAggregateFactory.ConstructAndLoadEntityFromEvents(x.Key, x.Value,
events?.Count > 0 ? events : new IEventStoreRecord[0]);
}));
}
public EventSourcedAggregateStoreTests()
{
publishEventBuffer = Substitute.For <IPublishEventBuffer>();
eventStore = Substitute.For <IEventStore>();
entityTypeManager = Substitute.For <IEntityTypeManager>();
repositoryFilter1 = Substitute.For <IRepositoryFilter>();
repositoryFilter2 = Substitute.For <IRepositoryFilter>();
FakeClock.Setup();
entityEvents = new Dictionary <Guid, IReadOnlyCollection <IEventStoreRecord> >()
{
{
entity2Id,
new List <IEventStoreRecord>()
{
new FakeEventStoreRecord()
{
Event = new SetFooEvent()
{
AggregateId = entity2Id
},
StreamSequenceNumber = 1
}
}
},
{
entity4Id,
new List <IEventStoreRecord>()
{
new FakeEventStoreRecord()
{
Event = new SetFooEvent()
{
AggregateId = entity4Id
},
StreamSequenceNumber = 1
}
}
}
};
eventStore.FindEventsAsync(Arg.Any <Guid>())
.Returns(ci =>
{
var id = ci.ArgAt <Guid>(0);
if (entityEvents.TryGetValue(id, out var events))
{
return(events);
}
return(new List <IEventStoreRecord>());
});
eventStore.BatchFindEventsAsync(Arg.Any <Guid[]>())
.Returns(ci =>
{
var ids = ci.ArgAt <Guid[]>(0);
var result = new Dictionary <Guid, IReadOnlyCollection <IEventStoreRecord> >();
foreach (Guid id in ids)
{
if (entityEvents.TryGetValue(id, out var events))
{
result.Add(id, events);
}
}
return(result);
});
entityMetadata = new Dictionary <Guid, IReadOnlyDictionary <string, string> >()
{
{
entity2Id,
new Dictionary <string, string>()
{
{ "TestKey", "TestValue" },
{ AggregateEventStreamMetadataNames.ClassId, entity2ClassId.ToString() }
}
},
{
entity3Id,
new Dictionary <string, string>()
{
{ "TestKey", "TestValue" },
{ AggregateEventStreamMetadataNames.ClassId, entity3ClassId.ToString() }
}
},
{
entity4Id,
new Dictionary <string, string>()
{
{ "TestKey", "TestValue" },
{ AggregateEventStreamMetadataNames.ClassId, entity2ClassId.ToString() }
}
}
};
eventStore.FindStreamMetadataAsync(Arg.Any <Guid>())
.Returns(ci =>
{
var id = ci.ArgAt <Guid>(0);
if (entityMetadata.TryGetValue(id, out var metadata))
{
return(metadata);
}
return(new Dictionary <string, string>());
});
eventStore.BatchFindStreamMetadataAsync(Arg.Any <Guid[]>())
.Returns(ci =>
{
var ids = ci.ArgAt <Guid[]>(0);
var result = new Dictionary <Guid, IReadOnlyDictionary <string, string> >();
foreach (Guid id in ids)
{
if (entityMetadata.TryGetValue(id, out var metadata))
{
result.Add(id, metadata);
}
}
return(result);
});
eventStore.PushEventsAsync(Guid.Empty, null, null).ReturnsForAnyArgs(ci =>
{
var events = ci.ArgAt <IEnumerable <IUncommittedEventStoreRecord> >(1);
return(events.Select(x => new FakeEventStoreRecord()
{
AdditionalMetadata = x.Metadata,
Event = x.Event,
EventId = Guid.NewGuid(),
StoreDate = DateTimeOffset.Now,
StreamSequenceNumber = 0
}).ToList());
});
DomainClassInfo[] domainClasses = new[]
{
new DomainClassInfo(entityClassId, null, typeof(MyEntity)),
new DomainClassInfo(entity2ClassId, null, typeof(MyEntity2)),
new DomainClassInfo(entity3ClassId, null, typeof(MyEntity3LoadsAsDeleted))
};
entityTypeManager.GetClassInfoByClassId(Guid.Empty)
.ReturnsForAnyArgs(ci => domainClasses.Single(x => x.Id == ci.Arg <Guid>()));
entityTypeManager.TryGetClassInfoByClrType(null)
.ReturnsForAnyArgs(ci => domainClasses.SingleOrDefault(x => x.ClrType == ci.Arg <Type>()));
entityTypeManager.GetClassInfoByClrType(null)
.ReturnsForAnyArgs(ci => domainClasses.Single(x => x.ClrType == ci.Arg <Type>()));
eventMessageFactory = Substitute.For <IEventMessageFactory>();
eventMessageFactory.CreateMessageAsync(null).ReturnsForAnyArgs(ci =>
{
var @event = ci.ArgAt <IEvent>(0);
Type messageType = typeof(EventMessageDraft <>).MakeGenericType(@event.GetType());
IEventMessageDraft messageDraft = (IEventMessageDraft)messageType.GetConstructor(new[] { @event.GetType() }).Invoke(new[] { @event });
messageDraft.SetMetadata("TestKey", "TestValue");
return(messageDraft);
}); // TODO something more lightweight?
sut = new EventSourcedAggregateStore(eventStore, entityTypeManager, publishEventBuffer,
new IRepositoryFilter[] { }, eventMessageFactory, new EntityFactory());
}