private QuizAggregate ExecuteCommand(Action <QuizAggregate> command)
{
var quizId = Guid.NewGuid();
var quiz = QuizAggregate.Create(quizId);
command(quiz);
return(quiz);
}
public async Task Start(int id)
{
var quizModel = QuizModelFactory.Create(id);
var quiz = new QuizAggregate();
quiz.Start(quizModel);
await _quizRepository.Save(quiz);
}
public async Task <object> Start()
{
var quizModel = QuizModelFactory.Create();
var quiz = new QuizAggregate();
quiz.Start(quizModel);
await _quizRepository.Save(quiz);
return(new
{
QuizId = quiz.Id,
Questions = quiz.QuizModel.Questions
});
}
public void Given_A_Quiz_When_Closing_Then_QuizClosedEvent_Raised()
{
// Arrange
var quiz = new QuizAggregate();
// Act
quiz.Close();
// Assert
var closedEvent = quiz.GetPendingEvents().FirstOrDefault();
Assert.NotNull(closedEvent);
Assert.IsAssignableFrom(typeof(QuizClosedEvent), closedEvent);
}
public void Given_A_Quiz_When_Starting_Then_QuizStartedEvent_Raised()
{
// Arrange
var quiz = new QuizAggregate();
var quizModel = QuizModelFactory.Create(1);
// Act
quiz.Start(quizModel);
// Assert
var startEvent = quiz.GetPendingEvents().FirstOrDefault();
Assert.NotNull(startEvent);
Assert.IsAssignableFrom(typeof(QuizStartedEvent), startEvent);
}
public void Given_An_Started_Quiz_When_Voting_For_WrongAnswer_Then_QuestionWrongAnsweredEvent_Raised()
{
// Arrange
var quiz = new QuizAggregate();
var quizModel = QuizModelFactory.Create(1);
var selectedQuestion = quizModel.Questions.FirstOrDefault();
var selectedOption = selectedQuestion.Options.FirstOrDefault(x => !x.IsCorrect);
// Act
quiz.Start(quizModel);
quiz.Vote(selectedQuestion.Id, selectedOption.Id);
// Assert
var startedEvent = quiz.GetPendingEvents().FirstOrDefault();
var answeredEvent = quiz.GetPendingEvents().LastOrDefault();
Assert.NotNull(startedEvent);
Assert.IsAssignableFrom(typeof(QuizStartedEvent), startedEvent);
Assert.NotNull(answeredEvent);
Assert.IsAssignableFrom(typeof(QuestionWrongAnsweredEvent), answeredEvent);
}
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));
}
