public void Should_Generate_Random_Quiz_Questions()
{
// Arrange
var randomCounter = new Dictionary <string, int>();
var mockQuizQuestionRepository = new Mock <IQuizQuestionRepository>();
mockQuizQuestionRepository.Setup(m => m.GetAll()).Returns(GetMockQuizQuestions());
var service = new QuizQuestionService(mockQuizQuestionRepository.Object, new Mock <IValidationDictionary>().Object);
// Act
for (var i = 1; i < 500; i++)
{
var question = service.GetRandomQuizQuestion();
if (randomCounter.ContainsKey(question.Question))
{
randomCounter[question.Question]++;
}
else
{
randomCounter.Add(question.Question, 1);
}
}
// Assert
// NOTE: In this instance since it's not easy to truly test for random, I'm outputting the
// result for a quick check by eye.
foreach (var key in randomCounter.Keys)
{
Console.WriteLine($"{key} was retrieved {randomCounter[key]} times");
}
}
public void Should_Get_Random_Quiz_Question_From_Repository()
{
// Arrange
var mockQuizQuestionRepository = new Mock <IQuizQuestionRepository>();
mockQuizQuestionRepository.Setup(m => m.GetAll()).Returns(GetMockQuizQuestions());
var service = new QuizQuestionService(mockQuizQuestionRepository.Object, new Mock <IValidationDictionary>().Object);
// Act
service.GetRandomQuizQuestion();
// Assert
mockQuizQuestionRepository.Verify(m => m.GetAll(), Times.Once);
}
public void Should_Not_Error_On_Generating_Random_Questions_If_No_Questions_Configured()
{
// Arrange
var randomCounter = new Dictionary <string, int>();
var mockQuizQuestionRepository = new Mock <IQuizQuestionRepository>();
mockQuizQuestionRepository.Setup(m => m.GetAll()).Returns(new List <QuizQuestion>());
var service = new QuizQuestionService(mockQuizQuestionRepository.Object, new Mock <IValidationDictionary>().Object);
// Act
var question = service.GetRandomQuizQuestion();
// Assert
mockQuizQuestionRepository.Verify(m => m.GetAll(), Times.Once);
Assert.IsNull(question);
}