private QuizAggregate ExecuteCommand(Action <QuizAggregate> command)
{
var quizId = Guid.NewGuid();
var quiz = QuizAggregate.Create(quizId);
command(quiz);
return(quiz);
}
private async Task <QuizAggregate> CreateAggregate(IDocumentSession session, Guid quizId)
{
var events = (await session.Events.FetchStreamAsync(quizId)).Select(@event => @event.Data).ToArray();
return(QuizAggregate.Create(quizId, events));
}