protected override Task fixtureSetup()
{
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
theStreamId = theSession.Events.StartStream <Quest>(joined, departed).Id;
return(theSession.SaveChangesAsync());
}
public void isnew_on_start_stream_2()
{
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
theSession.Events.StartStream <Quest>(Guid.NewGuid(), joined, departed);
theSession.PendingChanges.Streams().Single().ActionType.ShouldBe(StreamActionType.Start);
}
public void should_be_existing_stream_on_append_event()
{
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
theSession.Events.Append(Guid.NewGuid(), joined, departed);
theSession.PendingChanges.Streams().Single().ActionType
.ShouldBe(StreamActionType.Append);
}
public void capture_events_to_an_existing_stream_and_fetch_the_events_back_in_another_database_schema(
TenancyStyle tenancyStyle, string[] tenants)
{
var store = InitStore(tenancyStyle);
var id = Guid.NewGuid();
When.CalledForEach(tenants, (tenantId, index) =>
{
var started = new QuestStarted();
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
session.Events.StartStream <Quest>(id, started);
session.SaveChanges();
}
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
#region sample_append-events
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(id, joined, departed);
session.SaveChanges();
#endregion
var streamEvents = session.Events.FetchStream(id);
streamEvents.Count().ShouldBe(3);
streamEvents.ElementAt(0).Data.ShouldBeOfType <QuestStarted>();
streamEvents.ElementAt(0).Version.ShouldBe(1);
streamEvents.ElementAt(1).Data.ShouldBeOfType <MembersJoined>();
streamEvents.ElementAt(1).Version.ShouldBe(2);
streamEvents.ElementAt(2).Data.ShouldBeOfType <MembersDeparted>();
streamEvents.ElementAt(2).Version.ShouldBe(3);
}
}).ShouldThrowIf(
(tenancyStyle == TenancyStyle.Single && tenants.Length > 1) || (tenancyStyle == TenancyStyle.Conjoined && tenants.SequenceEqual(SameTenants))
);
}
public void delete_stream_by_string_key_multi_tenanted()
{
StoreOptions(_ =>
{
_.Events.StreamIdentity = StreamIdentity.AsString;
_.Events.TenancyStyle = TenancyStyle.Conjoined;
});
var stream1 = "one";
var stream2 = "two";
using (var session = theStore.LightweightSession("one"))
{
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream1, joined, departed);
var joined2 = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed2 = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream2, joined2, departed2);
session.SaveChanges();
}
theStore.Advanced.Clean.DeleteSingleEventStream(stream1, "one");
using (var session = theStore.LightweightSession())
{
session.Events.QueryAllRawEvents().ToList().All(x => x.StreamKey == stream2)
.ShouldBeTrue();
}
}
public void should_check_max_event_id_on_append()
{
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
var stream = theSession.Events.StartStream <Quest>(joined).Id;
theSession.Events.Append(stream, 2, departed);
theSession.SaveChanges();
var state = theSession.Events.FetchStreamState(stream);
state.Id.ShouldBe(stream);
state.Version.ShouldBe(2);
}
public void should_not_append_events_when_unexpected_max_version_with_string_identifier()
{
UseStreamIdentity(StreamIdentity.AsString);
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
var stream = "Another";
theSession.Events.Append(stream, joined);
theSession.SaveChanges();
theSession.Events.Append(stream, 2, departed);
using (var session = theStore.OpenSession())
{
var joined3 = new MembersJoined {
Members = new[] { "Egwene" }
};
var departed3 = new MembersDeparted {
Members = new[] { "Perrin" }
};
session.Events.Append(stream, joined3, departed3);
session.SaveChanges();
}
Assert.Throws <EventStreamUnexpectedMaxEventIdException>(() => theSession.SaveChanges());
using (var session = theStore.OpenSession())
{
var state = session.Events.FetchStreamState(stream);
state.Key.ShouldBe(stream);
state.Version.ShouldBe(3);
}
}
public void get_correct_events_from_single_stream()
{
var id = Guid.NewGuid();
var started = new QuestStarted();
using (var session = theStore.LightweightSession())
{
session.Events.StartStream <Quest>(id, started);
session.SaveChanges();
var events = listener.LastCommit
.GetEvents()
.ToList();
events.Count.ShouldBe(1);
events.ElementAt(0).Data.ShouldBeOfType <QuestStarted>();
}
using (var session = theStore.LightweightSession())
{
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(id, joined, departed);
session.SaveChanges();
var events = listener.LastCommit
.GetEvents()
.ToList();
events.Count.ShouldBe(2);
events.ElementAt(0).Data.ShouldBeOfType <MembersJoined>();
events.ElementAt(1).Data.ShouldBeOfType <MembersDeparted>();
}
}
public void assert_on_max_event_id_on_event_stream_append()
{
var id = "Sixteen";
var started = new QuestStarted();
using var session = theStore.LightweightSession();
session.Events.StartStream <Quest>(id, started);
session.SaveChanges();
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
// Events are appended into the stream only if the maximum event id for the stream
// would be 3 after the append operation.
session.Events.Append(id, 3, joined, departed);
session.SaveChanges();
}
public void delete_stream_by_guid_id_conjoined_tenancy()
{
StoreOptions(opts => opts.Events.TenancyStyle = TenancyStyle.Conjoined);
var stream1 = Guid.NewGuid();
var stream2 = Guid.NewGuid();
using (var session = theStore.LightweightSession("one"))
{
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream1, joined, departed);
var joined2 = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed2 = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream2, joined2, departed2);
session.SaveChanges();
}
theStore.Advanced.Clean.DeleteSingleEventStream(stream1, "one");
using (var session = theStore.LightweightSession())
{
session.Events.QueryAllRawEvents().ToList().All(x => x.StreamId == stream2)
.ShouldBeTrue();
}
}
public void should_check_max_event_id_on_append_with_string_identifier()
{
UseStreamIdentity(StreamIdentity.AsString);
var joined = new MembersJoined {
Members = new string[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
var stream = "First";
theSession.Events.Append(stream, joined);
theSession.Events.Append(stream, 2, departed);
theSession.SaveChanges();
var state = theSession.Events.FetchStreamState(stream);
state.Key.ShouldBe(stream);
state.Version.ShouldBe(2);
}
public void capture_events_to_a_new_stream_and_fetch_the_events_back_in_another_database_schema()
{
using var session = theStore.LightweightSession();
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
var id = "Thirteen";
session.Events.StartStream <Quest>(id, joined, departed);
session.SaveChanges();
var streamEvents = session.Events.FetchStream(id);
streamEvents.Count().ShouldBe(2);
streamEvents.ElementAt(0).Data.ShouldBeOfType <MembersJoined>();
streamEvents.ElementAt(0).Version.ShouldBe(1);
streamEvents.ElementAt(1).Data.ShouldBeOfType <MembersDeparted>();
streamEvents.ElementAt(1).Version.ShouldBe(2);
}
public void capture_events_to_a_new_stream_and_fetch_the_events_back()
{
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
var id = "First";
theSession.Events.StartStream <Quest>(id, joined, departed);
theSession.SaveChanges();
var streamEvents = theSession.Events.FetchStream(id);
streamEvents.Count().ShouldBe(2);
streamEvents.ElementAt(0).Data.ShouldBeOfType <MembersJoined>();
streamEvents.ElementAt(0).Version.ShouldBe(1);
streamEvents.ElementAt(1).Data.ShouldBeOfType <MembersDeparted>();
streamEvents.ElementAt(1).Version.ShouldBe(2);
streamEvents.Each(e => e.Timestamp.ShouldNotBe(default(DateTimeOffset)));
}
public void capture_events_to_an_existing_stream_and_fetch_the_events_back()
{
var id = "Twelth";
var started = new QuestStarted();
using (var session = theStore.LightweightSession())
{
session.Events.StartStream <Quest>(id, started);
session.SaveChanges();
}
using (var session = theStore.LightweightSession())
{
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(id, joined);
session.Events.Append(id, departed);
session.SaveChanges();
var streamEvents = session.Events.FetchStream(id);
streamEvents.Count().ShouldBe(3);
streamEvents.ElementAt(0).Data.ShouldBeOfType <QuestStarted>();
streamEvents.ElementAt(0).Version.ShouldBe(1);
streamEvents.ElementAt(1).Data.ShouldBeOfType <MembersJoined>();
streamEvents.ElementAt(1).Version.ShouldBe(2);
streamEvents.ElementAt(2).Data.ShouldBeOfType <MembersDeparted>();
streamEvents.ElementAt(2).Version.ShouldBe(3);
}
}
public void live_aggregate_equals_inlined_aggregate_without_hidden_contracts()
{
var questId = "Fifth";
using (var session = theStore.LightweightSession())
{
//Note Id = questId, is we remove it from first message then AggregateStream will return party.Id=default(Guid) that is not equals to Load<QuestParty> result
var started = new QuestStarted { /*Id = questId,*/
Name = "Destroy the One Ring"
};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream <Quest>(questId, started, joined1);
session.SaveChanges();
}
using (var session = theStore.LightweightSession())
{
var liveAggregate = session.Events.AggregateStream <QuestPartyWithStringIdentifier>(questId);
var inlinedAggregate = session.Load <QuestPartyWithStringIdentifier>(questId);
liveAggregate.Id.ShouldBe(inlinedAggregate.Id);
inlinedAggregate.ToString().ShouldBe(liveAggregate.ToString());
}
}
public async Task delete_stream_by_guid_id_async()
{
var stream1 = Guid.NewGuid();
var stream2 = Guid.NewGuid();
using (var session = theStore.LightweightSession())
{
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream1, joined, departed);
var joined2 = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed2 = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.Append(stream2, joined2, departed2);
await session.SaveChangesAsync();
}
await theStore.Advanced.Clean.DeleteSingleEventStreamAsync(stream1);
using (var session = theStore.LightweightSession())
{
session.Events.QueryAllRawEvents().ToList().All(x => x.StreamId == stream2)
.ShouldBeTrue();
}
}
public static MemberJoined[] From(MembersJoined @event)
{
return(@event.Members.Select(x => new MemberJoined(@event.Day, @event.Location, x)).ToArray());
}
public void open_persisted_stream_in_new_store_with_same_settings()
{
var questId = "Sixth";
using (var session = theStore.LightweightSession())
{
//Note "Id = questId" @see live_aggregate_equals_inlined_aggregate...
var started = new QuestStarted {
Name = "Destroy the One Ring"
};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream <Quest>(questId, started, joined1);
session.SaveChanges();
}
// events-aggregate-on-the-fly - works with same store
using (var session = theStore.LightweightSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestPartyWithStringIdentifier>(questId);
party.ShouldNotBeNull();
var party_at_version_3 = session.Events
.AggregateStream <QuestPartyWithStringIdentifier>(questId, 3);
party_at_version_3.ShouldNotBeNull();
var party_yesterday = session.Events
.AggregateStream <QuestPartyWithStringIdentifier>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
using (var session = theStore.LightweightSession())
{
var party = session.Load <QuestPartyWithStringIdentifier>(questId);
SpecificationExtensions.ShouldNotBeNull(party);
}
var newStore = new DocumentStore(theStore.Options);
//Inline is working
using (var session = newStore.LightweightSession())
{
var party = session.Load <QuestPartyWithStringIdentifier>(questId);
party.ShouldNotBeNull();
}
//GetAll
using (var session = theStore.LightweightSession())
{
var parties = session.Events.QueryRawEventDataOnly <QuestPartyWithStringIdentifier>().ToArray();
foreach (var party in parties)
{
party.ShouldNotBeNull();
}
}
//This AggregateStream fail with NPE
using (var session = newStore.LightweightSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestPartyWithStringIdentifier>(questId);//Here we get NPE
party.ShouldNotBeNull();
var party_at_version_3 = session.Events
.AggregateStream <QuestPartyWithStringIdentifier>(questId, 3);
party_at_version_3.ShouldNotBeNull();
var party_yesterday = session.Events
.AggregateStream <QuestPartyWithStringIdentifier>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
}
public void open_persisted_stream_in_new_store_with_same_settings(TenancyStyle tenancyStyle, string[] tenants)
{
var store = InitStore(tenancyStyle);
var questId = Guid.NewGuid();
When.CalledForEach(tenants, (tenantId, index) =>
{
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
//Note "Id = questId" @see live_aggregate_equals_inlined_aggregate...
var started = new QuestStarted {
Id = questId, Name = "Destroy the One Ring"
};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream <Quest>(questId, started, joined1);
session.SaveChanges();
}
// events-aggregate-on-the-fly - works with same store
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);
party.Id.ShouldBe(questId);
party.ShouldNotBeNull();
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
party_at_version_3.ShouldNotBeNull();
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTimeOffset.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
var party = session.Load <QuestParty>(questId);
party.Id.ShouldBe(questId);
}
var newStore = InitStore(tenancyStyle, false);
//Inline is working
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
var party = session.Load <QuestParty>(questId);
SpecificationExtensions.ShouldNotBeNull(party);
}
//GetAll
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
var parties = session.Events.QueryRawEventDataOnly <QuestParty>().ToArray();
foreach (var party in parties)
{
SpecificationExtensions.ShouldNotBeNull(party);
}
}
//This AggregateStream fail with NPE
using (var session = store.OpenSession(tenantId, DocumentTracking.None))
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);//Here we get NPE
party.Id.ShouldBe(questId);
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
party_at_version_3.Id.ShouldBe(questId);
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTimeOffset.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
}).ShouldThrowIf(
(tenancyStyle == TenancyStyle.Single && tenants.Length > 1) || (tenancyStyle == TenancyStyle.Conjoined && tenants.SequenceEqual(SameTenants))
);
}
public void SampleCopyAndTransformStream()
{
#region sample_scenario-copyandtransformstream-setup
var started = new QuestStarted {
Name = "Find the Orb"
};
var joined = new MembersJoined {
Day = 2, Location = "Faldor's Farm", Members = new[] { "Garion", "Polgara", "Belgarath" }
};
var slayed1 = new MonsterSlayed {
Name = "Troll"
};
var slayed2 = new MonsterSlayed {
Name = "Dragon"
};
using (var session = theStore.OpenSession())
{
session.Events.StartStream <Quest>(started.Name, started, joined, slayed1, slayed2);
session.SaveChanges();
}
#endregion
#region sample_scenario-copyandtransformstream-transform
using (var session = theStore.OpenSession())
{
var events = session.Events.FetchStream(started.Name);
var transformedEvents = events.SelectMany(x =>
{
switch (x.Data)
{
case MonsterSlayed monster:
{
// Trolls we remove from our transformed stream
return(monster.Name.Equals("Troll") ? new object[] { } : new[] { monster });
}
case MembersJoined members:
{
// MembersJoined events we transform into a series of events
return(MemberJoined.From(members));
}
}
return(new[] { x.Data });
}).Where(x => x != null).ToArray();
var moveTo = $"{started.Name} without Trolls";
// We copy the transformed events to a new stream
session.Events.StartStream <Quest>(moveTo, transformedEvents);
// And additionally mark the old stream as moved. Furthermore, we assert on the new expected stream version to guard against any racing updates
session.Events.Append(started.Name, events.Count + 1, new StreamMovedTo
{
To = moveTo
});
// Transactionally update the streams.
session.SaveChanges();
}
#endregion
}
protected bool Equals(MembersJoined other)
{
return(QuestId.Equals(other.QuestId) && Day == other.Day && Location == other.Location && Members.SequenceEqual(other.Members));
}
public void running_synchronously()
{
var logger = new RecordingSessionLogger();
Guid streamId = Guid.NewGuid();
using (var session = theStore.OpenSession())
{
session.Logger = logger;
var joined = new MembersJoined {
Members = new[] { "Rand", "Matt", "Perrin", "Thom" }
};
var departed = new MembersDeparted {
Members = new[] { "Thom" }
};
session.Events.StartStream <Quest>(streamId, joined, departed);
session.SaveChanges();
var events = logger.LastCommit.GetEvents().ToArray();
events.Select(x => x.Version)
.ShouldHaveTheSameElementsAs(1, 2);
events.Each(x => SpecificationExtensions.ShouldBeGreaterThan(x.Sequence, 0L));
events.Select(x => x.Sequence).Distinct().Count().ShouldBe(2);
}
using (var session = theStore.OpenSession())
{
session.Logger = logger;
var joined2 = new MembersJoined {
Members = new[] { "Egwene" }
};
var departed2 = new MembersDeparted {
Members = new[] { "Perrin" }
};
session.Events.Append(streamId, joined2, departed2);
session.SaveChanges();
logger.LastCommit.GetEvents().Select(x => x.Version)
.ShouldHaveTheSameElementsAs(3, 4);
}
using (var session = theStore.OpenSession())
{
session.Logger = logger;
var joined3 = new MembersJoined {
Members = new[] { "Egwene" }
};
var departed3 = new MembersDeparted {
Members = new[] { "Perrin" }
};
session.Events.Append(streamId, joined3, departed3);
session.SaveChanges();
logger.LastCommit.GetEvents().Select(x => x.Version)
.ShouldHaveTheSameElementsAs(5, 6);
}
}
