public void Can_get_and_set_current_value_generic()
{
using var context = new FreezerContext();
var cherry = new Cherry();
var chunky = new Chunky();
context.AddRange(chunky, cherry);
var reference = context.Entry(chunky).Reference(e => e.Garcia);
Assert.Null(reference.CurrentValue);
reference.CurrentValue = cherry;
Assert.Same(cherry, chunky.Garcia);
Assert.Same(chunky, cherry.Monkeys.Single());
Assert.Equal(cherry.Id, chunky.GarciaId);
Assert.Same(cherry, reference.CurrentValue);
Assert.Same(reference.TargetEntry.GetInfrastructure(), context.Entry(cherry).GetInfrastructure());
reference.CurrentValue = null;
Assert.Null(chunky.Garcia);
Assert.Empty(cherry.Monkeys);
Assert.Null(chunky.GarciaId);
Assert.Null(reference.CurrentValue);
Assert.Null(reference.TargetEntry);
}
public void Can_get_and_set_current_value_collection()
{
using (var context = new FreezerContext())
{
var cherry = new Cherry();
var chunky = new Chunky();
context.AddRange(chunky, cherry);
var collection = context.Entry(cherry).Navigation("Monkeys");
Assert.Null(collection.CurrentValue);
collection.CurrentValue = new List <Chunky>
{
chunky
};
Assert.Same(cherry, chunky.Garcia);
Assert.Same(chunky, cherry.Monkeys.Single());
Assert.Equal(cherry.Id, chunky.GarciaId);
Assert.Same(chunky, ((ICollection <Chunky>)collection.CurrentValue).Single());
collection.CurrentValue = null;
Assert.Null(chunky.Garcia);
Assert.Null(cherry.Monkeys);
Assert.Null(chunky.GarciaId);
Assert.Null(collection.CurrentValue);
}
}
public void Can_get_and_set_current_value_reference()
{
using (var context = new FreezerContext())
{
var cherry = new Cherry();
var chunky = new Chunky();
context.AddRange(chunky, cherry);
var reference = context.Entry(chunky).Navigation("Garcia");
Assert.Null(reference.CurrentValue);
reference.CurrentValue = cherry;
Assert.Same(cherry, chunky.Garcia);
Assert.Same(chunky, cherry.Monkeys.Single());
Assert.Equal(cherry.Id, chunky.GarciaId);
Assert.Same(cherry, reference.CurrentValue);
reference.CurrentValue = null;
Assert.Null(chunky.Garcia);
Assert.Empty(cherry.Monkeys);
Assert.Null(chunky.GarciaId);
Assert.Null(reference.CurrentValue);
}
}
public void Can_get_and_set_current_value_generic()
{
using (var context = new FreezerContext())
{
var cherry = new Cherry();
var chunky = new Chunky();
context.AddRange(chunky, cherry);
var collection = context.Entry(cherry).Collection(e => e.Monkeys);
Assert.Null(collection.CurrentValue);
collection.CurrentValue = new List <Chunky>
{
chunky
};
Assert.Same(cherry, chunky.Garcia);
Assert.Same(chunky, cherry.Monkeys.Single());
Assert.Equal(cherry.Id, chunky.GarciaId);
Assert.Same(chunky, collection.CurrentValue.Single());
Assert.Same(collection.GetTargetEntry(chunky).GetInfrastructure(), context.Entry(chunky).GetInfrastructure());
collection.CurrentValue = null;
Assert.Null(chunky.Garcia);
Assert.Null(cherry.Monkeys);
Assert.Null(chunky.GarciaId);
Assert.Null(collection.CurrentValue);
Assert.Null(collection.GetTargetEntry(chunky));
}
}
public void Can_get_and_set_current_value_collection()
{
using var context = new FreezerContext();
var cherry = new Cherry();
var chunky = new Chunky();
context.AddRange(chunky, cherry);
var collection = context.Entry(cherry).Member("Chunkies");
var inverseCollection = context.Entry(chunky).Member("Cherries");
Assert.Null(collection.CurrentValue);
Assert.Null(inverseCollection.CurrentValue);
collection.CurrentValue = new List <Chunky> {
chunky
};
Assert.Same(cherry, chunky.Cherries.Single());
Assert.Same(chunky, cherry.Chunkies.Single());
Assert.Equal(cherry, ((ICollection <Cherry>)inverseCollection.CurrentValue).Single());
Assert.Same(chunky, ((ICollection <Chunky>)collection.CurrentValue).Single());
collection.CurrentValue = null;
Assert.Empty(chunky.Cherries);
Assert.Null(cherry.Chunkies);
Assert.Empty((IEnumerable)inverseCollection.CurrentValue);
Assert.Null(collection.CurrentValue);
}
private static void AttachGraph(FreezerContext context, Cherry cherry1, Cherry cherry2, Chunky chunky1, Chunky chunky2)
{
cherry1.Chunkies = new List <Chunky> {
chunky1, chunky2
};
cherry2.Chunkies = new List <Chunky>();
if (context is ExplicitFreezerContext)
{
context.AddRange(cherry1, cherry2, chunky1, chunky2); // So that PKs get generated values
context.ChangeTracker.Entries().ToList().ForEach(e => e.State = EntityState.Unchanged);
}
else
{
context.AttachRange(cherry1, cherry2, chunky1, chunky2);
}
}
