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 Aggregates_can_schedule_commands_against_themselves_idempotently()
{
var it = new MarcoPoloPlayerWhoIsIt();
await Save(it);
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.KeepSayingMarcoOverAndOver());
VirtualClock.Current.AdvanceBy(TimeSpan.FromMinutes(1));
it = await Get<MarcoPoloPlayerWhoIsIt>(it.Id);
it.Events()
.OfType<MarcoPoloPlayerWhoIsIt.SaidMarco>()
.Count()
.Should()
.BeGreaterOrEqualTo(5);
}
public async Task Multiple_scheduled_commands_having_the_some_causative_command_etag_have_repeatable_and_unique_etags()
{
var scheduled = new List<ICommand>();
string[] firstPassEtags;
string[] secondPassEtags;
configuration.AddToCommandSchedulerPipeline<MarcoPoloPlayerWhoIsIt>(async (cmd, next) =>
{
scheduled.Add(cmd.Command);
await next(cmd);
});
configuration.AddToCommandSchedulerPipeline<MarcoPoloPlayerWhoIsNotIt>(async (cmd, next) =>
{
scheduled.Add(cmd.Command);
await next(cmd);
});
var it = new MarcoPoloPlayerWhoIsIt()
.Apply(new MarcoPoloPlayerWhoIsIt.AddPlayer { PlayerId = Any.Guid() })
.Apply(new MarcoPoloPlayerWhoIsIt.AddPlayer { PlayerId = Any.Guid() });
Console.WriteLine("[Saving]");
await itRepo.Save(it);
var sourceEtag = Any.Guid().ToString();
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.KeepSayingMarcoOverAndOver
{
ETag = sourceEtag
});
// VirtualClock.Current.AdvanceBy(TimeSpan.FromSeconds(2));
firstPassEtags = scheduled.Select(c => c.ETag).ToArray();
Console.WriteLine(new { firstPassEtags }.ToLogString());
scheduled.Clear();
// revert the aggregate and do the same thing again
it = await itRepo.GetLatest(it.Id);
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.KeepSayingMarcoOverAndOver
{
ETag = sourceEtag
});
Console.WriteLine("about to advance clock for the second time");
// VirtualClock.Current.AdvanceBy(TimeSpan.FromSeconds(2));
secondPassEtags = scheduled.Select(c => c.ETag).ToArray();
Console.WriteLine(new { secondPassEtags }.ToLogString());
secondPassEtags.Should()
.Equal(firstPassEtags);
}
public async Task Multiple_scheduled_commands_having_the_some_causative_command_etag_have_repeatable_and_unique_etags()
{
var scheduled = new List<ICommand>();
var configuration = Configuration.Current;
configuration.AddToCommandSchedulerPipeline<MarcoPoloPlayerWhoIsIt>(async (cmd, next) =>
{
scheduled.Add(cmd.Command);
await next(cmd);
});
configuration.AddToCommandSchedulerPipeline<MarcoPoloPlayerWhoIsNotIt>(async (cmd, next) =>
{
scheduled.Add(cmd.Command);
await next(cmd);
});
var it = new MarcoPoloPlayerWhoIsIt()
.Apply(new MarcoPoloPlayerWhoIsIt.AddPlayer { PlayerId = Any.Guid() })
.Apply(new MarcoPoloPlayerWhoIsIt.AddPlayer { PlayerId = Any.Guid() });
await Save(it);
var sourceEtag = Any.Guid().ToString();
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.KeepSayingMarcoOverAndOver
{
ETag = sourceEtag
});
var firstPassEtags = scheduled.Select(c => c.ETag).ToArray();
scheduled.Clear();
// revert the aggregate and do the same thing again
it = await Get<MarcoPoloPlayerWhoIsIt>(it.Id);
await it.ApplyAsync(new MarcoPoloPlayerWhoIsIt.KeepSayingMarcoOverAndOver
{
ETag = sourceEtag
});
var secondPassEtags = scheduled.Select(c => c.ETag).ToArray();
secondPassEtags.Should()
.Equal(firstPassEtags);
}