public void Attaching_previously_detached_entity_should_not_throw_exception()
{
using (var db = new DetachmentContext())
{
var login = new DeLogin
{
Id = 14
};
var order = new DeOrder
{
Id = 19
};
login.Orders.Add(order);
order.Login = login;
db.Logins.Attach(login);
((IObjectContextAdapter)db).ObjectContext.Detach(login);
Assert.Null(order.Login);
db.Logins.Attach(login);
Assert.Same(login, order.Login);
Assert.True(login.Orders.Contains(order));
Assert.Equal(EntityState.Unchanged, db.Entry(login).State);
Assert.Equal(EntityState.Unchanged, db.Entry(order).State);
}
}
protected override void Seed(DetachmentContext context)
{
var login = new DeLogin
{
Id = 14,
CustomerId = 21
};
var order = new DeOrder
{
Id = 19
};
var customer = new DeCustomer
{
DeCustomerId = 21
};
login.Orders.Add(order);
order.Login = login;
login.Customer = customer;
context.Logins.Add(login);
}