public bool Save(TAggregate aggregate)
{
var newEvents = aggregate.Events;
if (newEvents == null || !newEvents.Any())
{
return(false);
}
var streamName = AggregateIdToStreamName(aggregate.GetType(), aggregate.Id);
var originalVersion = aggregate.Version - newEvents.Count;
var expectedVersion = originalVersion < 0 ? ExpectedVersion.NoStream : originalVersion;
var eventsToSave = newEvents.Select(e => ToEventData(Guid.NewGuid(), e)).ToList();
using (var aggregateTransaction = EventStoreConnection.StartTransactionAsync(streamName, expectedVersion).Result)
{
try
{
aggregateTransaction.WriteAsync(eventsToSave).Wait();
aggregateTransaction.CommitAsync().Wait();
aggregate.Events.Clear();
}
catch
{
aggregateTransaction.Rollback();
throw;
}
}
return(true);
}
public void should_validate_expectations_on_commit()
{
const string stream = "should_validate_expectations_on_commit";
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
{
var start = store.StartTransactionAsync(stream, 100500);
Assert.DoesNotThrow(start.Wait);
var write = store.TransactionalWriteAsync(start.Result.TransactionId, stream, new[] { new TestEvent() });
Assert.DoesNotThrow(write.Wait);
var commit = store.CommitTransactionAsync(start.Result.TransactionId, start.Result.Stream);
Assert.That(() => commit.Wait(), Throws.Exception.TypeOf <AggregateException>().With.InnerException.TypeOf <WrongExpectedVersionException>());
}
}
public void should_start_on_non_existing_stream_with_exp_ver_any_and_create_stream_on_commit()
{
const string stream = "should_start_on_non_existing_stream_with_exp_ver_any_and_create_stream_on_commit";
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
{
var start = store.StartTransactionAsync(stream, ExpectedVersion.Any);
Assert.DoesNotThrow(start.Wait);
var write = store.TransactionalWriteAsync(start.Result.TransactionId, stream, new[] { new TestEvent() });
Assert.DoesNotThrow(write.Wait);
var commit = store.CommitTransactionAsync(start.Result.TransactionId, start.Result.Stream);
Assert.DoesNotThrow(commit.Wait);
}
}
public void should_create_stream_if_commits_no_events_to_empty_stream()
{
const string stream = "should_create_stream_if_commits_no_events_to_empty_stream";
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
{
var start = store.StartTransactionAsync(stream, ExpectedVersion.NoStream);
Assert.DoesNotThrow(start.Wait);
var commit = store.CommitTransactionAsync(start.Result.TransactionId, start.Result.Stream);
Assert.DoesNotThrow(commit.Wait);
var streamCreated = store.ReadEventStreamForwardAsync(stream, 0, 1);
Assert.DoesNotThrow(streamCreated.Wait);
Assert.That(streamCreated.Result.Events.Length, Is.EqualTo(1));//stream created event
}
}
public void should_fail_to_commit_if_started_with_correct_ver_but_on_commit_stream_was_deleted()
{
const string stream = "should_fail_to_commit_if_started_with_correct_ver_but_on_commit_stream_was_deleted";
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
store.CreateStream(stream, new byte[0]);
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
{
var start = store.StartTransactionAsync(stream, ExpectedVersion.EmptyStream);
Assert.DoesNotThrow(start.Wait);
var write = store.TransactionalWriteAsync(start.Result.TransactionId, start.Result.Stream, new[] { new TestEvent() });
Assert.DoesNotThrow(write.Wait);
var delete = store.DeleteStreamAsync(stream, ExpectedVersion.EmptyStream);
Assert.DoesNotThrow(delete.Wait);
var commit = store.CommitTransactionAsync(start.Result.TransactionId, start.Result.Stream);
Assert.That(() => commit.Wait(), Throws.Exception.TypeOf <AggregateException>().With.InnerException.TypeOf <StreamDeletedException>());
}
}
public void should_not_fail_to_commit_if_started_with_wrong_ver_but_committing_with_correct_ver()
{
const string stream = "should_not_fail_to_commit_if_started_with_wrong_ver_but_committing_with_correct_ver";
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
store.CreateStream(stream, new byte[0]);
using (var store = new EventStoreConnection(MiniNode.Instance.TcpEndPoint))
{
var start = store.StartTransactionAsync(stream, 1);
Assert.DoesNotThrow(start.Wait);
var append = store.AppendToStreamAsync(stream, ExpectedVersion.EmptyStream, new[] { new TestEvent() });
Assert.DoesNotThrow(append.Wait);
var write = store.TransactionalWriteAsync(start.Result.TransactionId, start.Result.Stream, new[] { new TestEvent() });
Assert.DoesNotThrow(write.Wait);
var commit = store.CommitTransactionAsync(start.Result.TransactionId, start.Result.Stream);
Assert.DoesNotThrow(commit.Wait);
}
}
