public async Task UpdateQuestionAsync_NewQuestion_CreatesChoicesCategory()
{
var database = GetDatabase().Build();
var classroom = database.Context.Classrooms.First();
var questionCategoryId = database.Context
.QuestionCategories
.First()
.Id;
var errors = new MockErrorCollection();
var newQuestion = new RandomlySelectedQuestion()
{
Name = "Random Question",
QuestionCategoryId = questionCategoryId
};
var updater = new RandomlySelectedQuestionUpdater
(
database.Context,
newQuestion,
errors
);
await updater.UpdateQuestionAsync();
Assert.False(errors.HasErrors);
Assert.NotNull(newQuestion.ChoicesCategory);
Assert.Equal(classroom.Id, newQuestion.ChoicesCategory.ClassroomId);
Assert.Equal("Category1: Random Question", newQuestion.ChoicesCategory.Name);
}
/// <summary>
/// Creates a question loader for a randomly selected question.
/// </summary>
IQuestionResolver IQuestionResultVisitor <IQuestionResolver, UserQuestionData> .Visit(
RandomlySelectedQuestion question,
UserQuestionData userQuestionData)
{
return(new RandomlySelectedQuestionResolver
(
userQuestionData,
_dbContext,
_questionLoaderFactory
));
}
/// <summary>
/// Creates a new UserQuestionData object.
/// </summary>
private UserQuestionData CreateUserQuestionData(
RandomlySelectedQuestion randomlySelectedQuestion,
int?previousQuestionId = null)
{
return(new UserQuestionData()
{
NumAttempts = 1,
LastQuestionSubmission = "LastQuestionSubmission",
Seed = previousQuestionId,
AssignmentQuestion = new AssignmentQuestion()
{
Question = randomlySelectedQuestion
}
});
}
/// <summary>
/// Verifies that the given randomly selected question was
/// correctly duplicated.
/// </summary>
private void VerifyRandomlySelectedQuestion(
DatabaseContext dbContext,
RandomlySelectedQuestion oldQuestion,
RandomlySelectedQuestion newQuestion)
{
VerifyReferenceDuplicated
(
dbContext,
oldQuestion,
newQuestion,
q => q.ChoicesCategory,
q => q.Id,
q => q.Name,
VerifyQuestionCategory
);
}
/// <summary>
/// Creates a question loader for a randomly selected question.
/// </summary>
IQuestionLoader IQuestionResultVisitor <IQuestionLoader> .Visit(RandomlySelectedQuestion question)
{
return(new RandomlySelectedQuestionLoader(_dbContext, question));
}
/// <summary>
/// Creates a question updater for a randomly selected question.
/// </summary>
IQuestionUpdater IQuestionResultVisitor <IQuestionUpdater, IModelErrorCollection> .Visit(
RandomlySelectedQuestion question,
IModelErrorCollection errors)
{
return(new RandomlySelectedQuestionUpdater(_dbContext, question, errors));
}
/// <summary>
/// Creates a question loader for a randomly selected question.
/// </summary>
IUserQuestionDataUpdater IQuestionResultVisitor <IUserQuestionDataUpdater> .Visit(
RandomlySelectedQuestion question)
{
return(_randomlySelectedUserQuestionDataUpdater);
}
/// <summary>
/// Creates a question duplicator for a randomly selected question.
/// </summary>
IQuestionDuplicator IQuestionResultVisitor <IQuestionDuplicator> .Visit(RandomlySelectedQuestion question)
{
throw new InvalidOperationException("Randomly selected questions cannot be duplicated.");
}
/// <summary>
/// Creates a question loader for a randomly selected question.
/// </summary>
IQuestionGrader IQuestionResultVisitor <IQuestionGrader> .Visit(RandomlySelectedQuestion question)
{
throw new InvalidOperationException("Randomly-selected questions cannot be graded directly. Instead, grade actual question selected.");
}