public async Task when_associated_reference_set_to_null__entity_is_preserved()
{
using (TestDbContext context = new TestDbContext())
{
IDetachedContext<TestDbContext> detachedContext = new DetachedContext<TestDbContext>(context);
// GIVEN an enity root with references:
AssociatedReference[] references = new[]
{
new AssociatedReference { Id = 1, Name = "Associated Reference 1" },
new AssociatedReference { Id = 2, Name = "Associated Reference 2" }
};
context.AddRange(references);
context.Add(new Entity
{
AssociatedReference = references[0],
});
context.SaveChanges();
// WHEN the owned and the associated references are set to null:
Entity detachedEntity = new Entity
{
Id = 1,
AssociatedReference = null,
OwnedReference = null
};
await detachedContext.Set<Entity>().UpdateAsync(detachedEntity);
await detachedContext.SaveChangesAsync();
// THEN the associated reference still exsits:
Assert.True(context.AssociatedReferences.Any(a => a.Name == "Associated Reference 1"));
}
}
public async Task when_load_sorted__result_is_ordered()
{
using (TestDbContext dbContext = new TestDbContext())
{
IDetachedContext<TestDbContext> detachedContext = new DetachedContext<TestDbContext>(dbContext);
dbContext.AddRange(new[]
{
new Entity { Name = "Order By Entity 2" },
new Entity { Name = "Order By Entity 1" },
new Entity { Name = "Order By Entity 3" }
});
await dbContext.SaveChangesAsync();
}
}
public async Task when_entity_deleted__owned_properties_are_deleted()
{
using (TestDbContext context = new TestDbContext())
{
IDetachedContext<TestDbContext> detachedContext = new DetachedContext<TestDbContext>(context);
// GIVEN an enity root with an owned list:
var associatedItems = new List<AssociatedListItem>(new[]
{
new AssociatedListItem { Name = "Associated Item 1" },
new AssociatedListItem { Name = "Associated Item 2" }
});
context.AddRange(associatedItems);
await context.SaveChangesAsync();
context.Add(new Entity
{
OwnedList = new List<OwnedListItem>(new[] {
new OwnedListItem { Name = "Owned Item A" },
new OwnedListItem { Name = "Owned Item B" },
new OwnedListItem { Name = "Owned Item C" }
}),
AssociatedList = associatedItems
});
context.SaveChanges();
// WHEN the entity is deleted:
await detachedContext.Set<Entity>().DeleteAsync(1);
await detachedContext.SaveChangesAsync();
// THEN owned items are removed:
Assert.False(context.OwnedListItems.Any(e => e.Name == "Owned Item A"));
Assert.False(context.OwnedListItems.Any(e => e.Name == "Owned Item B"));
Assert.False(context.OwnedListItems.Any(e => e.Name == "Owned Item C"));
// and the associated items are not removed:
Assert.True(context.AssociatedListItems.Any(e => e.Name == "Associated Item 1"));
Assert.True(context.AssociatedListItems.Any(e => e.Name == "Associated Item 2"));
}
}
