private static void AccessorTest(
string navigationName, Func <MyEntity, IEnumerable <MyOtherEntity> > reader, bool initializeCollections = true)
{
var accessor = new ClrCollectionAccessorSource(new CollectionTypeFactory()).GetAccessor(CreateNavigation(navigationName));
var entity = new MyEntity();
var value = new MyOtherEntity();
if (initializeCollections)
{
entity.InitializeCollections();
}
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());
}
private void Enumerable_backed_by_non_collection_throws(Action <IClrCollectionAccessor, MyEntity, MyOtherEntity> test)
{
var accessor = new ClrCollectionAccessorFactory().Create(CreateNavigation("AsIEnumerableNotCollection"));
var entity = new MyEntity();
var value = new MyOtherEntity();
entity.InitializeCollections();
Assert.Equal(
CoreStrings.NavigationBadType(
"AsIEnumerableNotCollection", typeof(MyEntity).Name, typeof(MyEnumerable).Name, typeof(MyOtherEntity).Name),
Assert.Throws <InvalidOperationException>(() => test(accessor, entity, value)).Message);
}
