Create new entity

[OscarCanek]

Would you help me with the following scenario?

When I add a new entity with a foreign key the keys are not added automatically after I call context.SaveChanges().

class Parent
{
   Guid Id;
   string name;
}

class Child
{
   Parent parent;
   Guid ParentId;
   Guid Id;
   string name;
}

Parent parent = new Parent
{
   Id = Guid.NewGuid(),
   name = "parent"
}

Child child = new Child
{
   Parent = parent,
   Id = Guid.NewGuid(),
   name = "child"
}

context.Childs.Add(child);
context.SaveChanges();

but when I get the ParentId of the child (context.Childs.First().ParentId) the value is null. In EF that behavior do not happen, when I use EF the ParentId property has the guid of the parent.

How can I get the same behavior with this library?

[RichardSilveira]

Hi @OscarCanek, this behavior is not the purpose of this library, i'm mocking the DbSet.Add EF' function and 'cause of it the auto-increment behavior of EF is not possible with mocks and should be manually configured.

[OscarCanek]

Oh, i see. Thanks for your help, your helper is really usefull for mock a dbcontext @RichardSilveira.

Btw, a colleague recommend me to use the effort library to get that behavior, it's not mock, but more like a in-memory simulation of a database.

[RichardSilveira]

Ah, i suggest you to give a research about mock vs stubs or something like that, maybe to your case stubs fits better than mocks, this article from Vladimir Khorikov (great pluralsight author) was a great reference for me..
http://enterprisecraftsmanship.com/2015/07/27/stubs-vs-mocks/