public void Get_Random_Question_By_Level()
{
BitcoinShowDBContext context = DbContextFactory.GetContext();
#region mock data
int[] easyIds = new int[5];
for (int i = 0; i < 4; i++)
{
Question easyQuestion = new Question();
easyQuestion.Answer = new Option {
Text = "Option 1 easyQuestion ${easyQuestion.Id}", QuestionId = easyQuestion.Id
};
easyQuestion.Title = "Question 1";
easyQuestion.Level = LevelEnum.Easy;
var options = RandomOptions(4).ToList();
options.ForEach(o => {
context.Options.Add(o);
});
context.SaveChanges();
easyQuestion.Answer = options[0];
context.Questions.Add(easyQuestion);
easyQuestion.Options = options;
options.ForEach(o => {
o.Question = easyQuestion;
context.Options.Update(o);
});
context.SaveChanges();
easyIds[i] = easyQuestion.Id;
}
#endregion mock data
QuestionRepository repository = new QuestionRepository(context);
Question question = repository.GetByLevel(LevelEnum.Easy, easyIds);
Assert.Null(question);
question = repository.GetByLevel(LevelEnum.Easy, new int[] { easyIds[0], easyIds[4] });
Assert.NotNull(question);
var filter = easyIds
.Select((value, index) => new { value, index })
.Where(item => item.index == 0 || item.index == 4)
.Select(item => item.value);
Assert.True(easyIds.Contains(question.Id));
Assert.False(filter.Contains(question.Id));
}