public async Task EventOrdering()
{
// Repopulating read models that span multiple aggregates should have their events
// applied in order using events time stamps
// Arrange
var idA = IdA.New;
var idB = IdB.New;
var i = 0;
await CommandBus.PublishAsync(new CommandA(idA, i++), CancellationToken.None);
await CommandBus.PublishAsync(new CommandA(idA, i++), CancellationToken.None);
await CommandBus.PublishAsync(new CommandB(idB, i++), CancellationToken.None);
await CommandBus.PublishAsync(new CommandB(idB, i++), CancellationToken.None);
await ReadModelPopulator.PurgeAsync(typeof(ReadModelAB), CancellationToken.None);
// Act
await ReadModelPopulator.PopulateAsync(typeof(ReadModelAB), CancellationToken.None);
// Assert
var readModelAb = await QueryProcessor.ProcessAsync(new ReadModelByIdQuery <ReadModelAB>(ReadModeld), CancellationToken.None);
readModelAb.Indexes.ShouldAllBeEquivalentTo(
new [] { 0, 1, 2, 3 },
o => o.WithStrictOrdering());
}
public async Task PurgeRemovesReadModels()
{
// Arrange
var id = ThingyId.New;
await PublishPingCommandAsync(id).ConfigureAwait(false);
// Act
await ReadModelPopulator.PurgeAsync(ReadModelType, CancellationToken.None).ConfigureAwait(false);
var readModel = await QueryProcessor.ProcessAsync(new ThingyGetQuery(id)).ConfigureAwait(false);
// Assert
readModel.Should().BeNull();
}
public async Task RePopulateHandlesManyAggregates()
{
// Arrange
var id1 = ThingyId.New;
var id2 = ThingyId.New;
await PublishPingCommandsAsync(id1, 3).ConfigureAwait(false);
await PublishPingCommandsAsync(id2, 5).ConfigureAwait(false);
// Act
await ReadModelPopulator.PurgeAsync(ReadModelType, CancellationToken.None).ConfigureAwait(false);
await ReadModelPopulator.PopulateAsync(ReadModelType, CancellationToken.None).ConfigureAwait(false);
// Assert
var readModel1 = await QueryProcessor.ProcessAsync(new ThingyGetQuery(id1)).ConfigureAwait(false);
var readModel2 = await QueryProcessor.ProcessAsync(new ThingyGetQuery(id2)).ConfigureAwait(false);
readModel1.PingsReceived.Should().Be(3);
readModel2.PingsReceived.Should().Be(5);
}
protected override Task PurgeTestAggregateReadModelAsync()
{
return(ReadModelPopulator.PurgeAsync <MsSqlThingyReadModel>(CancellationToken.None));
}
protected override Task PurgeTestAggregateReadModelAsync()
{
return(Task.WhenAll(
ReadModelPopulator.PurgeAsync <InMemoryThingyReadModel>(CancellationToken.None),
ReadModelPopulator.PurgeAsync <InMemoryThingyMessageReadModel>(CancellationToken.None)));
}