public void uses_provided_instance()
{
var stream = StreamAction.Append(Guid.NewGuid())
.Add(new QuestStarted {
Name = "Destroy the Ring"
})
.Add(new MembersJoined {
Members = new string[] { "Frodo", "Sam" }
})
.Add(new MembersJoined {
Members = new string[] { "Merry", "Pippin" }
})
.Add(new MembersJoined {
Members = new string[] { "Strider" }
})
.Add(new MembersJoined {
Members = new string[] { "Gandalf", "Boromir", "Gimli", "Legolas" }
})
.Add(new MembersEscaped {
Members = new string[] { "Frodo", "Sam" }, Location = "Mt. Doom"
});
var state = new QuestFinishingParty("The Eagles!");
var party = theAggregator.Build(stream.Events, null, state);
party.Name.ShouldBe("Destroy the Ring");
party.Members.ShouldHaveTheSameElementsAs("Merry", "Pippin", "Strider", "Gandalf", "Boromir", "Gimli", "Legolas");
}
public void build_a_series_of_events()
{
var stream = StreamAction.Append(Guid.NewGuid())
.Add(new QuestStarted {
Name = "Destroy the Ring"
})
.Add(new MembersJoined {
Members = new string[] { "Frodo", "Sam" }
})
.Add(new MembersJoined {
Members = new string[] { "Merry", "Pippin" }
})
.Add(new MembersJoined {
Members = new string[] { "Strider" }
})
.Add(new MembersJoined {
Members = new string[] { "Gandalf", "Boromir", "Gimli", "Legolas" }
})
.Add(new MembersDeparted()
{
Members = new string[] { "Frodo", "Sam" }
});
var party = theAggregator.Build(stream.Events, null);
party.Name.ShouldBe("Destroy the Ring");
party.Members.ShouldHaveTheSameElementsAs("Merry", "Pippin", "Strider", "Gandalf", "Boromir", "Gimli", "Legolas");
}
public async Task find_when_stream_is_not_new_and_it_is_not_in_database_async()
{
var id = Guid.NewGuid();
var finder = new AggregateFinder <QuestParty>();
(await finder.FindAsync(StreamAction.Append(id), theSession, new CancellationToken()))
.ShouldNotBeNull();
}
public void find_when_stream_is_not_new_and_it_is_not_in_database()
{
var session = Substitute.For <IDocumentSession>();
var id = Guid.NewGuid();
var finder = new AggregateFinder <QuestParty>();
finder.Find(StreamAction.Append(id), session)
.ShouldNotBeNull();
}
public void explicitly_added_step_as_action()
{
theAggregator.Add <MonsterSlayed>((party, slayed) =>
{
party.Slayed.Fill(slayed.Name);
});
theAggregator.AppliesTo(StreamAction.Append(Guid.NewGuid()).Add(new MonsterSlayed()))
.ShouldBeTrue();
}
public static StreamAction[] ToStreams(StreamIdentity streamIdentity, IEnumerable <IEvent> events)
{
if (streamIdentity == StreamIdentity.AsGuid)
{
return(events.GroupBy(x => x.StreamId)
.Select(group => StreamAction.Append(@group.Key, @group.ToArray()))
.ToArray());
}
return(events.GroupBy(x => x.StreamKey)
.Select(group => StreamAction.Append(@group.Key, @group.ToArray()))
.ToArray());
}
public void applies_to()
{
var stream = StreamAction.Append(Guid.NewGuid());
theAggregator.AppliesTo(stream).ShouldBeFalse();
stream.Add(new MonsterSlayed());
theAggregator.AppliesTo(stream).ShouldBeFalse();
stream.Add(new MembersJoined());
theAggregator.AppliesTo(stream).ShouldBeTrue();
}
public StreamAction Append(string stream, params object[] events)
{
var step = action(e => e.Append(stream, events));
if (events.Count() > 3)
{
step.Description = $"Append('{stream}', events)";
}
else
{
step.Description = $"Append('{stream}', {events.Select(x => x.ToString()).Join(", ")})";
}
return(StreamAction.Append(_store.Events, stream, events));
}
public StreamAction Append(Guid stream, IEnumerable <object> events)
{
var step = action(e => e.Append(stream, events));
if (events.Count() > 3)
{
step.Description = $"Append({stream}, events)";
}
else
{
step.Description = $"Append({stream}, {events.Select(x => x.ToString()).Join(", ")})";
}
return(StreamAction.Append(_store.Events, stream, events));
}
public void can_lookup_private_apply_methods()
{
var theGraph = new EventGraph(new StoreOptions());
theGraph.UseAggregatorLookup(new AggregatorLookup(type => typeof(AggregatorApplyPrivate <>).CloseAndBuildAs <IAggregator>(type)));
var aggregator = theGraph.AggregateFor <AggregateWithPrivateEventApply>();
var stream = StreamAction.Append(Guid.NewGuid(), new[] { new QuestStarted {
Name = "Destroy the Ring"
} });
var party = aggregator.Build(stream.Events, null);
party.Name.ShouldBe("Destroy the Ring");
}
public async Task find_when_stream_is_not_new_async()
{
var id = Guid.NewGuid();
var persisted = new QuestParty {
Id = id
};
theSession.Store(persisted);
await theSession.SaveChangesAsync();
var finder = new AggregateFinder <QuestParty>();
(await finder.FindAsync(StreamAction.Append(id), theSession, new CancellationToken()))
.ShouldBeTheSameAs(persisted);
}
public void find_when_stream_is_not_new()
{
var session = Substitute.For <IDocumentSession>();
var id = Guid.NewGuid();
var persisted = new QuestParty {
Id = id
};
var finder = new AggregateFinder <QuestParty>();
session.Load <QuestParty>(id).Returns(persisted);
finder.Find(StreamAction.Append(id), session)
.ShouldBeTheSameAs(persisted);
}
public StreamAction Append(Guid stream, long expectedVersion, params object[] events)
{
var step = action(e => e.Append(stream, expectedVersion, events));
if (events.Count() > 3)
{
step.Description = $"Append({stream}, {expectedVersion}, events)";
}
else
{
step.Description =
$"Append({stream}, {expectedVersion}, {events.Select(x => x.ToString()).Join(", ")})";
}
return(StreamAction.Append(_store.Events, stream, events));
}
public async Task InlineProject(Action <TestEventScenario> action)
{
var scenario = new TestEventScenario();
action(scenario);
var streams = scenario
.Streams
.ToDictionary()
.Select(x => StreamAction.Append(x.Key, x.Value.Events().ToArray()))
.ToArray();
var inline = _projection.BuildRuntime(theStore);
await inline.ApplyAsync(theSession, streams, CancellationToken.None);
await theSession.SaveChangesAsync();
}
public void ApplyServerVersion_for_existing_streams()
{
var action = StreamAction.Append(theEvents, Guid.NewGuid(), new AEvent(), new BEvent(), new CEvent(), new DEvent());
var queue = new Queue<long>();
queue.Enqueue(11);
queue.Enqueue(12);
queue.Enqueue(13);
queue.Enqueue(14);
action.PrepareEvents(5, theEvents, queue, theSession);
action.ExpectedVersionOnServer.ShouldBe(5);
action.Events[0].Version.ShouldBe(6);
action.Events[1].Version.ShouldBe(7);
action.Events[2].Version.ShouldBe(8);
action.Events[3].Version.ShouldBe(9);
}
public void can_set_private_apply_aggregator_through_extension_methods_and_strategy()
{
var theGraph = new EventGraph(new StoreOptions());
// SAMPLE: register-custom-aggregator-lookup
// Registering an aggregator lookup that provides aggregator supporting private Apply([Event Type]) methods
theGraph.UseAggregatorLookup(AggregationLookupStrategy.UsePrivateApply);
// ENDSAMPLE
var aggregator = theGraph.AggregateFor <AggregateWithPrivateEventApply>();
var stream = StreamAction.Append(Guid.NewGuid(), new object[] { new QuestStarted {
Name = "Destroy the Ring"
} });
var party = aggregator.Build(stream.Events, null);
party.Name.ShouldBe("Destroy the Ring");
}
public StreamAction StartNewStream(IMartenSessionLogger logger = null)
{
var events = new object[] { new AEvent(), new BEvent(), new CEvent(), new DEvent() };
using var session = Store.Events.TenancyStyle == TenancyStyle.Conjoined
? Store.LightweightSession(TenantId)
: Store.LightweightSession();
session.Listeners.Add(new EventMetadataChecker());
if (logger != null)
{
session.Logger = logger;
}
if (Store.Events.StreamIdentity == StreamIdentity.AsGuid)
{
session.Events.StartStream(StreamId, events);
session.SaveChanges();
var stream = StreamAction.Append(StreamId);
stream.Version = 4;
stream.TenantId = TenantId;
return(stream);
}
else
{
session.Events.StartStream(StreamId.ToString(), events);
session.SaveChanges();
var stream = StreamAction.Start(StreamId.ToString(), new AEvent());
stream.Version = 4;
stream.TenantId = TenantId;
return(stream);
}
}
public void can_set_public_and_private_apply_aggregator_through_extension_methods_and_strategy()
{
var theGraph = new EventGraph(new StoreOptions());
theGraph.UseAggregatorLookup(AggregationLookupStrategy.UsePublicAndPrivateApply);
var aggregator = theGraph.AggregateFor <AggregateWithPrivateEventApply>();
var stream = StreamAction.Append(Guid.NewGuid(), new object[] { new QuestStarted {
Name = "Destroy the Ring"
} });
var party = aggregator.Build(stream.Events, null);
party.Name.ShouldBe("Destroy the Ring");
stream.Add(new QuestEnded {
Name = "Ring Destroyed"
});
var party2 = aggregator.Build(stream.Events, null);
party2.Name.ShouldBe("Ring Destroyed");
}
public void uses_default_aggregate_constructor_if_no_instance_provided()
{
var stream = StreamAction.Append(Guid.NewGuid())
.Add(new QuestStarted {
Name = "Destroy the Ring"
})
.Add(new MembersJoined {
Members = new string[] { "Frodo", "Sam" }
})
.Add(new MembersJoined {
Members = new string[] { "Merry", "Pippin" }
})
.Add(new MembersJoined {
Members = new string[] { "Strider" }
})
.Add(new MembersJoined {
Members = new string[] { "Gandalf", "Boromir", "Gimli", "Legolas" }
})
.Add(new MembersEscaped {
Members = new string[] { "Frodo", "Sam" }, Location = "Mt. Doom"
});
Exception <NullReferenceException> .ShouldBeThrownBy(() => theAggregator.Build(stream.Events, null));
}