private static void Seed3595(Context3595 context)
{
var question = new Question3595();
var examInstance = new Exam3595();
var examInstanceQuestion = new ExamQuestion3595
{
Question = question,
Exam = examInstance
};
context.Add(question);
context.Add(examInstance);
context.Add(examInstanceQuestion);
context.SaveChanges();
}
public void GroupBy_with_uninitialized_datetime_projection_3595()
{
using (CreateScratch <Context3595>(Seed3595, "3595"))
{
using var context = new Context3595();
var q0 = from instance in context.Exams
join question in context.ExamQuestions
on instance.Id equals question.ExamId
where instance.Id != 3
group question by question.QuestionId
into gQuestions
select new { gQuestions.Key, MaxDate = gQuestions.Max(q => q.Modified) };
var result = q0.ToList();
Assert.Equal(default, result.Single().MaxDate);
private static InMemoryTestStore CreateScratch <TContext>(Action <TContext> Seed)
where TContext : DbContext, new()
=> InMemoryTestStore.CreateScratch(
() =>
{
using (var context = new TContext())
{
Seed(context);
}
},
() =>
{
using (var context = new Context3595())
{
context.GetInfrastructure().GetRequiredService <IInMemoryStoreSource>().GetGlobalStore().Clear();
}
});
private static InMemoryTestStore CreateScratch <TContext>(Action <TContext> Seed)
where TContext : DbContext, new()
=> InMemoryTestStore.CreateScratch(
() =>
{
using (var context = new TContext())
{
Seed(context);
}
},
() =>
{
using (var context = new Context3595())
{
context.GetService <IInMemoryStoreSource>().GetPersistentStore(DatabaseName).Clear();
}
});
