public async Task Snapshots_include_etags_for_events_that_have_been_persisted_to_the_event_store()
{
var etag = Guid.NewGuid().ToString().ToETag();
var configuration = Configuration.Current;
var addPlayer = new MarcoPoloPlayerWhoIsNotIt.JoinGame
{
IdOfPlayerWhoIsIt = Any.Guid(),
ETag = etag
};
var player = await new MarcoPoloPlayerWhoIsNotIt()
.ApplyAsync(addPlayer);
await configuration.Repository <MarcoPoloPlayerWhoIsNotIt>().Save(player);
await configuration.SnapshotRepository().SaveSnapshot(player);
var snapshot = await configuration.SnapshotRepository()
.GetSnapshot(player.Id);
snapshot.ETags
.MayContain(etag)
.Should()
.BeTrue();
}
public async Task Scatter_gather_produces_a_unique_etag_per_sent_command()
{
var repo = configuration.Repository <MarcoPoloPlayerWhoIsIt>();
var it = new MarcoPoloPlayerWhoIsIt();
await repo.Save(it);
var numberOfPlayers = 6;
var players = Enumerable.Range(1, numberOfPlayers)
.Select(_ => new MarcoPoloPlayerWhoIsNotIt());
foreach (var player in players)
{
var joinGame = new MarcoPoloPlayerWhoIsNotIt.JoinGame
{
IdOfPlayerWhoIsIt = it.Id
};
await player.ApplyAsync(joinGame).AndSave();
}
await repo.Refresh(it);
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.SayMarco()).AndSave();
await repo.Refresh(it);
it.Events()
.OfType <MarcoPoloPlayerWhoIsIt.HeardPolo>()
.Count()
.Should()
.Be(numberOfPlayers);
}
public async Task When_sourced_from_a_snapshot_and_applying_a_command_that_is_already_in_the_bloom_filter_then_a_precondition_check_is_used_to_rule_out_false_positives()
{
var verifierWasCalled = false;
var preconditionVerifier = new TestEventStoreETagChecker(() =>
{
verifierWasCalled = true;
return(true);
});
var configuration = Configuration.Current;
configuration.UseDependency <IETagChecker>(_ => preconditionVerifier);
var etag = Guid.NewGuid().ToString().ToETag();
var addPlayer = new MarcoPoloPlayerWhoIsNotIt.JoinGame
{
IdOfPlayerWhoIsIt = Any.Guid(),
ETag = etag
};
var player = await new MarcoPoloPlayerWhoIsNotIt()
.ApplyAsync(addPlayer);
await configuration.Repository <MarcoPoloPlayerWhoIsNotIt>().Save(player);
// don't call player.ConfirmSave
await configuration.SnapshotRepository()
.SaveSnapshot(player);
var snapshot = await configuration.SnapshotRepository().GetSnapshot(player.Id);
player = new MarcoPoloPlayerWhoIsNotIt(snapshot);
player.HasETag(etag).Should().BeTrue();
verifierWasCalled.Should().BeTrue();
}
