public void Navigation_back_pointer_is_fixed_up_as_navigation_is_added_and_removed()
{
var entityType1 = new EntityType(typeof(Customer));
entityType1.SetKey(entityType1.AddProperty(Customer.IdProperty));
var entityType2 = new EntityType(typeof(Customer));
var navigation
= new Navigation(
new ForeignKey(
entityType1.GetKey(),
new[] { entityType1.AddProperty(Customer.IdProperty) }), "Nav", pointsToPrincipal: true);
entityType1.AddNavigation(navigation);
Assert.Same(entityType1, navigation.EntityType);
entityType2.AddNavigation(navigation);
Assert.Same(entityType2, navigation.EntityType);
Assert.Empty(entityType1.Navigations);
entityType2.RemoveNavigation(navigation);
Assert.Empty(entityType2.Navigations);
Assert.Null(navigation.EntityType);
}
public void Delegate_getter_is_cached_by_type_and_property_name()
{
var entityType = new EntityType(typeof(MyEntity));
var navigation = entityType.AddNavigation(new Navigation(Mock.Of <ForeignKey>(), "AsICollection", pointsToPrincipal: false));
var source = new ClrCollectionAccessorSource();
Assert.Same(source.GetAccessor(navigation), source.GetAccessor(navigation));
}
public void Can_add_navigations()
{
var entityType = new EntityType(typeof(Order));
var navigation = new Navigation(new Mock <ForeignKey>().Object, "Milk", pointsToPrincipal: true);
entityType.AddNavigation(navigation);
Assert.Same(navigation, entityType.Navigations.Single());
Assert.Same(entityType, navigation.EntityType);
}
private static void AccessorTest(string navigationName, Func <MyEntity, IEnumerable <Random> > reader)
{
var entityType = new EntityType(typeof(MyEntity));
var navigation = entityType.AddNavigation(new Navigation(Mock.Of <ForeignKey>(), navigationName, pointsToPrincipal: true));
var accessor = new ClrCollectionAccessorSource().GetAccessor(navigation);
var entity = new MyEntity();
var value = new Random();
Assert.False(accessor.Contains(entity, value));
Assert.DoesNotThrow(() => accessor.Remove(entity, value));
accessor.Add(entity, value);
Assert.True(accessor.Contains(entity, value));
Assert.Equal(1, reader(entity).Count());
accessor.Remove(entity, value);
Assert.False(accessor.Contains(entity, value));
Assert.Equal(0, reader(entity).Count());
}