public async void Returns_Answers_When_Question_Exists()
{
var answersRepository = new Mock <IAnswersRepository>();
var questionsRepository = new Mock <IQuestionsRepository>();
var answers = Builder <Answer> .CreateListOfSize(5).Build().AsEnumerable();
answersRepository.Setup(x => x.GetAnswersByQuestionId(1))
.Returns(Task.FromResult(answers));
questionsRepository.Setup(x => x.QuestionExists(1)).Returns(Task.FromResult(true));
var queryHandler = new GetAnswersByQuestionIdQueryHandler(answersRepository.Object, questionsRepository.Object);
var query = new GetAnswersByQuestionIdQuery(questionId: 1);
var result = await queryHandler.Handle(query, cancellationToken : CancellationToken.None);
Assert.Equal(5, result.Count);
}
public async void Throw_Exception_When_Question_Does_Not_Exist()
{
var answersRepository = new Mock <IAnswersRepository>();
var questionsRepository = new Mock <IQuestionsRepository>();
questionsRepository.Setup(x => x.QuestionExists(1))
.Returns(Task.FromResult(false));
var query = new GetAnswersByQuestionIdQuery(questionId: 1);
var queryHandler = new GetAnswersByQuestionIdQueryHandler(answersRepository.Object, questionsRepository.Object);
try
{
var result = await queryHandler.Handle(query, CancellationToken.None);
}
catch (Exception ex)
{
Assert.True(ex is InvalidQuestionException);
}
}
