public void AddingEventsWithProperExpectedVersionToExistingEventDescriptorsPopulatesDatabase()
{
var aggregateId = Guid.NewGuid();
var databaseMock = new DatabaseMock<EventDescriptors>();
var existingEvents = new EventDescriptors{ Id = aggregateId };
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 0));
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 1));
databaseMock.Put(existingEvents);
var initialCount = existingEvents.Count();
var expectedVersion = existingEvents.Count() - 1;
IConcurrencyConflictResolver conflictResolver = null;
var newEvents = new List<Event>
{
new Event(),
new Event()
};
var publisherMock = new EventPublisherMock();
var eventStore = new EventStore(publisherMock, databaseMock);
eventStore.SaveEvents(
aggregateId,
newEvents,
expectedVersion,
conflictResolver);
var actual = databaseMock.Get(aggregateId.ToString());
Assert.NotNull(actual);
Assert.Equal(newEvents.Count + initialCount, actual.Count());
publisherMock.AssertPublishCount<Event>(newEvents.Count());
}
public void FetchingAggregateRootWhenExistsGetsProperListOfEvents()
{
var aggregateId = Guid.NewGuid();
var databaseMock = new DatabaseMock<EventDescriptors>();
var expected = new EventDescriptors { Id = aggregateId };
expected.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 0));
expected.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 1));
databaseMock.Put(expected);
var publisherMock = new EventPublisherMock();
var eventStore = new EventStore(publisherMock, databaseMock);
var actual = eventStore.GetEventsForAggregate(aggregateId);
Assert.NotNull(actual);
Assert.Equal(expected.Count(), actual.Count());
Assert.Null(publisherMock.GetLastPublishedObject<Event>());
}
public void AddingImproperlyVersionedEventsWithNoConflictResolutionExpectException()
{
var aggregateId = Guid.NewGuid();
var databaseMock = new DatabaseMock<EventDescriptors>();
var existingEvents = new EventDescriptors { Id = aggregateId };
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event1(), 0));
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event1(), 1));
databaseMock.Put(existingEvents);
var expectedVersion = existingEvents.Count() - 2;
IConcurrencyConflictResolver conflictResolver = new ConcurrencyConflictResolver();
conflictResolver.RegisterConflictList(typeof(Event1), new List<Type> {typeof(Event1)});
var newEvents = new List<Event>
{
new Event1(),
new Event1()
};
var publisherMock = new EventPublisherMock();
var eventStore = new EventStore(publisherMock, databaseMock);
Assert.Throws<EventStoreConcurrencyException>(() =>
eventStore.SaveEvents(
aggregateId,
newEvents,
expectedVersion,
conflictResolver));
}
public async void AddingImproperlyVersionedEventsConcurrentlyWithConflictResolutionPopulatesDatabase()
{
var aggregateId = Guid.NewGuid();
var databaseMock = new DatabaseMock<EventDescriptors>();
var existingEvents = new EventDescriptors {Id = aggregateId};
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 0));
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 1));
databaseMock.Put(existingEvents);
var initialCount = existingEvents.Count();
var expectedVersion = 0;
IConcurrencyConflictResolver conflictResolver = new ConcurrencyConflictResolver();
conflictResolver.RegisterConflictList(typeof (Event2<EventConstraint1>), new List<Type>());
conflictResolver.RegisterConflictList(typeof (Event2<EventConstraintAnother1>), new List<Type>());
var newEventsSource1 = new List<Event>
{
new Event2<EventConstraint1>()
};
var newEventsSource2 = new List<Event>
{
new Event2<EventConstraintAnother1>()
};
var publisherMock = new EventPublisherMock();
var eventStore = new EventStore(publisherMock, databaseMock);
var task1 = Task.Run(() =>
eventStore.SaveEvents(
aggregateId,
newEventsSource1,
expectedVersion,
conflictResolver));
var task2 = Task.Run(()=>
eventStore.SaveEvents(
aggregateId,
newEventsSource2,
expectedVersion,
conflictResolver));
await Task.WhenAll(task1, task2).ConfigureAwait(false);
var actual = databaseMock.Get(aggregateId.ToString());
Assert.NotNull(actual);
Assert.Equal(newEventsSource1.Count + newEventsSource2.Count + initialCount, actual.Count());
publisherMock.AssertPublishCount<Event>(newEventsSource1.Count + newEventsSource2.Count);
}
public void AddingEventsWithImproperExpectedVersionAndNullConflictResolverExpectException()
{
var aggregateId = Guid.NewGuid();
var databaseMock = new DatabaseMock<EventDescriptors>();
var existingEvents = new EventDescriptors { Id = aggregateId };
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 0));
existingEvents.Add(new EventDescriptor(Guid.NewGuid(), new Event(), 1));
databaseMock.Put(existingEvents);
var expectedVersion = existingEvents.Count() - 2;
IConcurrencyConflictResolver conflictResolver = null;
var newEvents = new List<Event>
{
new Event(),
new Event()
};
var publisherMock = new EventPublisherMock();
var eventStore = new EventStore(publisherMock, databaseMock);
Assert.Throws<EventStoreConcurrencyException>(() =>
eventStore.SaveEvents(
aggregateId,
newEvents,
expectedVersion,
conflictResolver));
}