public void CreateQuestionDuplicator_RandomlySelectedQuestion_Throws()
{
var questionDuplicatorFactory = new QuestionDuplicatorFactory
(
dbContext: null
);
Assert.Throws <InvalidOperationException>
(
() => questionDuplicatorFactory.CreateQuestionDuplicator
(
new RandomlySelectedQuestion()
)
);
}
public void CreateQuestionDuplicator_ReturnsCorrectType(
Type questionType,
Type expectedDuplicatorType)
{
var questionDuplicatorFactory = new QuestionDuplicatorFactory
(
dbContext: null
);
var result = questionDuplicatorFactory.CreateQuestionDuplicator
(
(Question)Activator.CreateInstance(questionType)
);
Assert.Equal(expectedDuplicatorType, result.GetType());
}
/// <summary>
/// Constructor.
/// </summary>
public QuestionService(
DatabaseContext dbContext,
QuestionLoaderFactory questionLoaderFactory,
QuestionUpdaterFactory questionUpdaterFactory,
QuestionGraderFactory questionGraderFactory,
QuestionDuplicatorFactory questionDuplicatorFactory,
IQuestionGenerator questionGenerator,
IJsonSerializer jsonSerializer,
IRandomNumberProvider randomNumberProvider,
ITimeProvider timeProvider)
{
_dbContext = dbContext;
_questionLoaderFactory = questionLoaderFactory;
_questionUpdaterFactory = questionUpdaterFactory;
_questionGraderFactory = questionGraderFactory;
_questionDuplicatorFactory = questionDuplicatorFactory;
_questionGenerator = questionGenerator;
_jsonSerializer = jsonSerializer;
_randomNumberProvider = randomNumberProvider;
_timeProvider = timeProvider;
}
/// <summary>
/// Creates a question service.
/// </summary>
private QuestionService CreateQuestionService(
DatabaseContext dbContext,
QuestionLoaderFactory questionLoaderFactory = null,
QuestionUpdaterFactory questionUpdaterFactory = null,
QuestionGraderFactory questionGraderFactory = null,
QuestionDuplicatorFactory questionDuplicatorFactory = null,
IQuestionGenerator questionGenerator = null,
IJsonSerializer jsonSerializer = null,
IRandomNumberProvider randomNumberProvider = null,
ITimeProvider timeProvider = null)
{
return new QuestionService
(
dbContext,
questionLoaderFactory,
questionUpdaterFactory,
questionGraderFactory,
questionDuplicatorFactory,
questionGenerator,
jsonSerializer,
randomNumberProvider,
timeProvider
);
}