public void CreateTypeNameExpression_ReturnsConditionalExpression_IfTypeHasDerivedTypes()
{
// Arrange
IEdmEntityType baseType = new EdmEntityType("NS", "BaseType");
IEdmEntityType typeA = new EdmEntityType("NS", "A", baseType);
IEdmEntityType typeB = new EdmEntityType("NS", "B", baseType);
IEdmEntityType typeAA = new EdmEntityType("NS", "AA", typeA);
IEdmEntityType typeAAA = new EdmEntityType("NS", "AAA", typeAA);
IEdmEntityType[] types = new[] { baseType, typeA, typeAAA, typeB, typeAA };
EdmModel model = new EdmModel();
foreach (var type in types)
{
model.AddElement(type);
model.SetAnnotationValue(type, new ClrTypeAnnotation(new MockType(type.Name, @namespace: type.Namespace)));
}
Expression source = Expression.Constant(42);
// Act
Expression result = SelectExpandBinder.CreateTypeNameExpression(source, baseType, model);
// Assert
Assert.Equal(
result.ToString(),
@"IIF((42 Is AAA), ""NS.AAA"", IIF((42 Is AA), ""NS.AA"", IIF((42 Is B), ""NS.B"", IIF((42 Is A), ""NS.A"", ""NS.BaseType""))))");
}
public void Bind_GeneratedExpression_ContainsExpandedObject()
{
// Arrange
SelectExpandQueryOption selectExpand = new SelectExpandQueryOption("Orders,Orders/Customer", "Orders,Orders/Customer", _context);
// Act
IQueryable queryable = SelectExpandBinder.Bind(_queryable, _settings, selectExpand);
// Assert
IEnumerator enumerator = queryable.GetEnumerator();
Assert.True(enumerator.MoveNext());
var partialCustomer = Assert.IsType <SelectExpandWrapper <Customer> >(enumerator.Current);
Assert.False(enumerator.MoveNext());
Assert.Null(partialCustomer.Instance);
IEnumerable <SelectExpandWrapper <Order> > innerOrders = partialCustomer.Container.ToDictionary()["Orders"] as IEnumerable <SelectExpandWrapper <Order> >;
Assert.NotNull(innerOrders);
SelectExpandWrapper <Order> partialOrder = innerOrders.Single();
Assert.Same(_queryable.First().Orders.First(), partialOrder.Instance);
SelectExpandWrapper <Customer> innerInnerCustomer = Assert.IsType <SelectExpandWrapper <Customer> >(partialOrder.Container.ToDictionary()["Customer"]);
Assert.Same(_queryable.First(), innerInnerCustomer.Instance);
}
public static object Bind(object entity, ODataQuerySettings settings, SelectExpandQueryOption selectExpandQuery)
{
Contract.Assert(entity != null);
SelectExpandBinder binder = new SelectExpandBinder(settings, selectExpandQuery);
return binder.Bind(entity);
}
public static IQueryable Bind(IQueryable queryable, ODataQuerySettings settings, SelectExpandQueryOption selectExpandQuery)
{
Contract.Assert(queryable != null);
SelectExpandBinder binder = new SelectExpandBinder(settings, selectExpandQuery);
return binder.Bind(queryable);
}
public static object Bind(object entity, ODataQuerySettings settings, SelectExpandQueryOption selectExpandQuery)
{
Contract.Assert(entity != null);
SelectExpandBinder binder = new SelectExpandBinder(settings, selectExpandQuery);
return(binder.Bind(entity));
}
public static IQueryable Bind(IQueryable queryable, ODataQuerySettings settings, SelectExpandQueryOption selectExpandQuery)
{
Contract.Assert(queryable != null);
SelectExpandBinder binder = new SelectExpandBinder(settings, selectExpandQuery);
return(binder.Bind(queryable));
}
public SelectExpandBinderTest()
{
_settings = new ODataQuerySettings { HandleNullPropagation = HandleNullPropagationOption.False };
_model = new CustomersModelWithInheritance();
_model.Model.SetAnnotationValue<ClrTypeAnnotation>(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
_model.Model.SetAnnotationValue<ClrTypeAnnotation>(_model.SpecialCustomer, new ClrTypeAnnotation(typeof(SpecialCustomer)));
_context = new ODataQueryContext(_model.Model, typeof(Customer));
_binder = new SelectExpandBinder(_settings, new SelectExpandQueryOption("*", "", _context));
Customer customer = new Customer();
Order order = new Order { Customer = customer };
customer.Orders.Add(order);
_queryable = new[] { customer }.AsQueryable();
}
public void Bind_ReturnsIEdmObject_WithRightEdmType()
{
// Arrange
SelectExpandQueryOption selectExpand = new SelectExpandQueryOption(select: "ID", expand: null, context: _context);
// Act
IQueryable queryable = SelectExpandBinder.Bind(_queryable, _settings, selectExpand);
// Assert
Assert.NotNull(queryable);
IEdmTypeReference edmType = _model.Model.GetEdmTypeReference(queryable.GetType());
Assert.NotNull(edmType);
Assert.True(edmType.IsCollection());
Assert.Same(_model.Customer, edmType.AsCollection().ElementType().Definition);
}
public void CreateTypeNameExpression_ReturnsNull_IfTypeHasNoDerivedTypes()
{
// Arrange
IEdmEntityType baseType = new EdmEntityType("NS", "BaseType");
EdmModel model = new EdmModel();
model.AddElement(baseType);
Expression source = Expression.Constant(42);
// Act
Expression result = SelectExpandBinder.CreateTypeNameExpression(source, baseType, model);
// Assert
Assert.Null(result);
}
public void CreateTypeNameExpression_ThrowsODataException_IfTypeHasNoMapping()
{
// Arrange
IEdmEntityType baseType = new EdmEntityType("NS", "BaseType");
IEdmEntityType derivedType = new EdmEntityType("NS", "DerivedType", baseType);
EdmModel model = new EdmModel();
model.AddElement(baseType);
model.AddElement(derivedType);
Expression source = Expression.Constant(42);
// Act & Assert
Assert.Throws <ODataException>(
() => SelectExpandBinder.CreateTypeNameExpression(source, baseType, model),
"The provided mapping doesn't contain an entry for the entity type 'NS.DerivedType'.");
}
public SelectExpandBinderTest()
{
_settings = new ODataQuerySettings {
HandleNullPropagation = HandleNullPropagationOption.False
};
_model = new CustomersModelWithInheritance();
_model.Model.SetAnnotationValue <ClrTypeAnnotation>(_model.Customer, new ClrTypeAnnotation(typeof(Customer)));
_model.Model.SetAnnotationValue <ClrTypeAnnotation>(_model.SpecialCustomer, new ClrTypeAnnotation(typeof(SpecialCustomer)));
_context = new ODataQueryContext(_model.Model, typeof(Customer));
_binder = new SelectExpandBinder(_settings, new SelectExpandQueryOption("*", "", _context));
Customer customer = new Customer();
Order order = new Order {
Customer = customer
};
customer.Orders.Add(order);
_queryable = new[] { customer }.AsQueryable();
}