public async Task use_type_filters()
{
NumberOfStreams = 10;
await PublishSingleThreaded();
using var fetcher1 = new EventFetcher(theStore, theStore.Tenancy.Default.Database, new ISqlFragment[0]);
var shardName = new ShardName("name");
var range1 = new EventRange(shardName, 0, NumberOfEvents);
await fetcher1.Load(range1, CancellationToken.None);
var uniqueTypeCount = range1.Events.Select(x => x.EventType).Distinct()
.Count();
uniqueTypeCount.ShouldBe(5);
var filter = new EventTypeFilter(theStore.Events, new Type[] { typeof(Travel), typeof(Arrival) });
using var fetcher2 = new EventFetcher(theStore, theStore.Tenancy.Default.Database, new ISqlFragment[] { filter });
var range2 = new EventRange(shardName, 0, NumberOfEvents);
await fetcher2.Load(range2, CancellationToken.None);
range2.Events
.Select(x => x.EventType)
.OrderBy(x => x.Name).Distinct()
.ShouldHaveTheSameElementsAs(typeof(Arrival), typeof(Travel));
}
internal async Task executeAfterLoadingEvents(Action <IEventStore> loadEvents)
{
loadEvents(theSession.Events);
await theSession.SaveChangesAsync();
var fetcher = new EventFetcher(theStore, theStore.Tenancy.Default.Database, theFilters.ToArray());
await fetcher.Load(theRange, default);
}
public async Task event_fetcher_simple_case()
{
using var fetcher = new EventFetcher(theStore, new ISqlFragment[0]);
NumberOfStreams = 10;
await PublishSingleThreaded();
var range1 = new EventRange(new ShardName("name"), 0, 10);
await fetcher.Load(range1, CancellationToken.None);
var range2 = new EventRange(new ShardName("name"), 10, 20);
await fetcher.Load(range2, CancellationToken.None);
var range3 = new EventRange(new ShardName("name"), 20, 38);
await fetcher.Load(range3, CancellationToken.None);
range1.Events.Count.ShouldBe(10);
range2.Events.Count.ShouldBe(10);
range3.Events.Count.ShouldBe(18);
}