public void Initialization_for_read_only_navigation_without_backing_field_throws()
{
var accessor = new ClrCollectionAccessorFactory().Create(CreateNavigation("ReadOnlyPropNoField"));
Assert.Equal(
CoreStrings.NavigationNoSetter("ReadOnlyPropNoField", typeof(MyEntity).Name),
Assert.Throws <InvalidOperationException>(
() => accessor.Add(new MyEntity(false), new MyOtherEntity(), forMaterialization: false)).Message);
}
public void Initialization_for_navigation_with_internal_constructor_throws()
{
var accessor = new ClrCollectionAccessorFactory().Create(CreateNavigation("AsMyInternalCollection"));
Assert.Equal(
CoreStrings.NavigationCannotCreateType("AsMyInternalCollection", typeof(MyEntity).Name, typeof(MyInternalCollection).Name),
Assert.Throws <InvalidOperationException>(
() => accessor.Add(new MyEntity(false), new MyOtherEntity(), forMaterialization: false)).Message);
}
public void Delegate_accessor_always_creates_collections_that_use_reference_equality_comparer()
{
IMutableModel model = new Model();
var entityType = model.AddEntityType(typeof(MyEntity));
var otherType = model.AddEntityType(typeof(MyEntityWithCustomComparer));
var foreignKey = otherType.AddForeignKey(
otherType.AddProperty("MyEntityId", typeof(int)),
entityType.SetPrimaryKey(entityType.AddProperty("Id", typeof(int))),
entityType);
var navigation = foreignKey.HasPrincipalToDependent(
typeof(MyEntity).GetProperty(
nameof(MyEntity.AsICollectionWithCustomComparer),
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance));
new BackingFieldConvention(new TestLogger <DbLoggerCategory.Model, TestLoggingDefinitions>())
.Apply(((ForeignKey)foreignKey).Builder, (Navigation)navigation);
var accessor = new ClrCollectionAccessorFactory().Create(navigation);
var entity = new MyEntity(initialize: false);
var value = new MyEntityWithCustomComparer
{
Id = 1
};
Assert.False(accessor.Contains(entity, value));
accessor.Add(entity, value);
value.Id = 42;
accessor.Add(entity, value);
Assert.Equal(1, entity.AsICollectionWithCustomComparer.Count);
}
private static void AccessorTest(
string navigationName, Func <MyEntity, IEnumerable <MyOtherEntity> > reader, bool initializeCollections = true)
{
var accessor = new ClrCollectionAccessorFactory().Create(CreateNavigation(navigationName));
var entity = new MyEntity(initializeCollections);
var value = new MyOtherEntity();
Assert.False(accessor.Contains(entity, value));
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());
}