public async Task smoke_test_able_to_fetch_a_page_of_events()
{
var list = new List<MembersJoined>();
for (int i = 0; i < 500; i++)
{
list.Add(new MembersJoined {Day = i, Location = Guid.NewGuid().ToString(), Members = new string[] {Guid.NewGuid().ToString()}});
}
using (var session = theStore.LightweightSession())
{
session.Events.Append(Guid.NewGuid(), list.ToArray());
await session.SaveChangesAsync().ConfigureAwait(false);
}
var options = new AsyncOptions();
var settings = new DaemonSettings
{
LeadingEdgeBuffer = 0.Seconds()
};
using (var data = new Fetcher(theStore, settings, options, Substitute.For<IDaemonLogger>(), new StubErrorHandler(), new Type[] {typeof(MembersJoined)}))
{
var page = await data.FetchNextPage(0).ConfigureAwait(false);
page.From.ShouldBe(0);
page.To.ShouldBe(options.PageSize);
page.Streams.SelectMany(x => x.Events).Count().ShouldBe(100);
}
}
public async Task filters_by_event_type_name()
{
using (var session = theStore.OpenSession())
{
for (int i = 0; i < 20; i++)
{
var joined = new MembersJoined
{
Day = i,
Location = Guid.NewGuid().ToString(),
Members = new string[] { Guid.NewGuid().ToString() }
};
var departed = new MembersDeparted { Day = i, Location = Guid.NewGuid().ToString(), Members = new[] { Guid.NewGuid().ToString() } };
var reached = new ArrivedAtLocation { Day = i, Location = Guid.NewGuid().ToString() };
session.Events.Append(Guid.NewGuid(), joined, departed, reached);
}
await session.SaveChangesAsync().ConfigureAwait(false);
}
var settings = new DaemonSettings
{
LeadingEdgeBuffer = 0.Seconds()
};
using (var data = new Fetcher(theStore, settings, new AsyncOptions(), Substitute.For<IDaemonLogger>(), new StubErrorHandler(), new Type[] {typeof(MembersDeparted), typeof(ArrivedAtLocation)}))
{
var page = await data.FetchNextPage(0).ConfigureAwait(false);
var all = page.Streams.SelectMany(x => x.Events).ToArray();
all.OfType<Event<MembersJoined>>().Any().ShouldBeFalse();
all.OfType<Event<MembersDeparted>>().Any().ShouldBeTrue();
all.OfType<Event<ArrivedAtLocation>>().Any().ShouldBeTrue();
}
}
public async Task correctly_correlates_by_stream()
{
var streams = new List<EventStream>();
var logger = new RecordingLogger();
using (var session = theStore.LightweightSession())
{
session.Logger = logger;
for (int i = 0; i < 20; i++)
{
var joined = new MembersJoined
{
Day = i,
Location = Guid.NewGuid().ToString(),
Members = new string[] { Guid.NewGuid().ToString() }
};
var departed = new MembersDeparted { Day = i, Location = Guid.NewGuid().ToString(), Members = new[] { Guid.NewGuid().ToString() } };
var reached = new ArrivedAtLocation { Day = i, Location = Guid.NewGuid().ToString() };
session.Events.Append(Guid.NewGuid(), joined, departed, reached);
}
await session.SaveChangesAsync().ConfigureAwait(false);
streams.AddRange(logger.LastCommit.GetStreams());
}
var types = new Type[]
{
typeof(MembersJoined), typeof(MembersDeparted), typeof(ArrivedAtLocation)
};
var settings = new DaemonSettings
{
LeadingEdgeBuffer = 0.Seconds()
};
using (var data = new Fetcher(theStore, settings, new AsyncOptions(), Substitute.For<IDaemonLogger>(), new StubErrorHandler(), types))
{
var page = await data.FetchNextPage(0).ConfigureAwait(false);
foreach (var stream in page.Streams)
{
var existing = streams.Single(x => x.Id == stream.Id);
existing.Events.Select(x => x.Id)
.ShouldHaveTheSameElementsAs(stream.Events.Select(x => x.Id));
}
}
}
public async Task able_to_page_events()
{
var list = new List<MembersJoined>();
for (int i = 0; i < 500; i++)
{
list.Add(new MembersJoined { Day = i, Location = Guid.NewGuid().ToString(), Members = new string[] { Guid.NewGuid().ToString() } });
}
using (var session = theStore.LightweightSession())
{
session.Events.Append(Guid.NewGuid(), list.ToArray());
await session.SaveChangesAsync().ConfigureAwait(false);
}
var types = new Type[] {typeof(MembersJoined)};
var settings = new DaemonSettings
{
LeadingEdgeBuffer = 0.Seconds()
};
using (var data = new Fetcher(theStore, settings, new AsyncOptions(), Substitute.For<IDaemonLogger>(), new StubErrorHandler(), types))
{
var events1 = (await data.FetchNextPage(0).ConfigureAwait(false)).Streams.SelectMany(x => x.Events).ToArray();
var events2 = (await data.FetchNextPage(100).ConfigureAwait(false)).Streams.SelectMany(x => x.Events).ToArray();
var events3 = (await data.FetchNextPage(200).ConfigureAwait(false)).Streams.SelectMany(x => x.Events).ToArray();
events1.Intersect(events2).Any().ShouldBeFalse();
events1.Intersect(events3).Any().ShouldBeFalse();
events3.Intersect(events2).Any().ShouldBeFalse();
events1.Length.ShouldBe(100);
events2.Length.ShouldBe(100);
events3.Length.ShouldBe(100);
}
}