public void ShouldNotChangeRequiredAssociateEvenIfItIsUsedTwice()
{
var requiredAssociate = new RequiredAssociate();
var root = new RootEntity { RequiredAssociate = requiredAssociate, Sources = new List<RootEntity>() };
using (var context = new TestDbContext())
{
context.RootEntities.Add(root);
context.RequiredAssociates.Add(requiredAssociate);
context.SaveChanges();
} // Simulate detach
var expectedAssociateId = requiredAssociate.Id;
var owned = new RootEntity { RequiredAssociate = requiredAssociate };
root.Sources.Add(owned);
using (var context = new TestDbContext())
{
root = context.UpdateGraph(root, map => map.OwnedCollection(r => r.Sources, with => with.AssociatedEntity(s => s.RequiredAssociate)));
context.SaveChanges();
var ownedAfterSave = root.Sources.FirstOrDefault();
Assert.IsNotNull(ownedAfterSave);
Assert.IsNotNull(ownedAfterSave.RequiredAssociate);
Assert.AreEqual(expectedAssociateId, ownedAfterSave.RequiredAssociate.Id);
var ownedReloaded = context.RootEntities.Single(r => r.Id == ownedAfterSave.Id);
Assert.IsNotNull(ownedReloaded.RequiredAssociate);
Assert.AreEqual(expectedAssociateId, ownedReloaded.RequiredAssociate.Id);
}
}
public void ShouldAddTwoNewOwnedItemsWithSharedRequiredAssociate()
{
var root = new RootEntity { RequiredAssociate = new RequiredAssociate(), Sources = new List<RootEntity>() };
var requiredAssociate = new RequiredAssociate();
using (var context = new TestDbContext())
{
context.RootEntities.Add(root);
context.RequiredAssociates.Add(requiredAssociate);
context.SaveChanges();
} // Simulate detach
var expectedAssociateId = requiredAssociate.Id;
var ownedOne = new RootEntity { RequiredAssociate = requiredAssociate };
root.Sources.Add(ownedOne);
var ownedTwo = new RootEntity { RequiredAssociate = requiredAssociate };
root.Sources.Add(ownedTwo);
using (var context = new TestDbContext())
{
root = context.UpdateGraph(root, map => map.OwnedCollection(r => r.Sources, with => with.AssociatedEntity(s => s.RequiredAssociate)));
context.SaveChanges();
Assert.IsTrue(root.Sources.All(s => s.RequiredAssociate.Id == expectedAssociateId));
var sourceIds = root.Sources.Select(s => s.Id).ToArray();
var sourcesReloaded = context.RootEntities.Where(r => sourceIds.Contains(r.Id)).ToList();
Assert.IsTrue(sourcesReloaded.All(s => s.RequiredAssociate != null && s.RequiredAssociate.Id == expectedAssociateId));
}
}