public void Test_DereferenceRelatedObjects_ForSingle_IsOwner_WhenHasNoRelatedBO()
{
//The Car has a single relationship to engine. The car->engine relationship is marked
// as a dereference related relationship.
BORegistry.DataAccessor = new DataAccessorInMemory();
//---------------Set up test pack-------------------
new Car();
Engine engine = new Engine();
engine.SetPropertyValue("EngineNo", "NO111");
engine.Save();
engine.MarkForDelete();
SingleRelationshipDef relationshipDef = (SingleRelationshipDef)engine.Relationships["Car"].RelationshipDef;
relationshipDef.DeleteParentAction = DeleteParentAction.DereferenceRelated;
//---------------Assert Precondition----------------
Assert.IsTrue(relationshipDef.OwningBOHasForeignKey);
Assert.AreEqual(DeleteParentAction.DereferenceRelated, relationshipDef.DeleteParentAction);
Assert.IsNull(engine.GetCar());
//---------------Execute Test ----------------------
engine.Save();
//---------------Test Result -----------------------
Assert.IsNull(engine.GetCar());
Assert.IsTrue(engine.Status.IsNew && engine.Status.IsDeleted);
}
public void TestDereferenceRelatedObjects()
{
//The Car has a single relationship to engine. The car->engine relationship is marked
// as a dereference related relationship.
BORegistry.DataAccessor = new DataAccessorInMemory();
//---------------Set up test pack-------------------
Car car = new Car();
car.SetPropertyValue("CarRegNo", "NP32459");
car.Save();
Engine engine = new Engine();
engine.SetPropertyValue("EngineNo", "NO111");
const string carIDProp = "CarID";
engine.SetPropertyValue(carIDProp, car.GetPropertyValue(carIDProp));
engine.Save();
BORegistry.DataAccessor.BusinessObjectLoader.Refresh(engine);
Assert.AreSame(engine.GetCar(), car);
//---------------Execute Test ----------------------
car.MarkForDelete();
car.Save();
//---------------Test Result -----------------------
Assert.IsNull(engine.GetPropertyValue(carIDProp));
Assert.IsNull(engine.GetCar());
//---------------Test TearDown -----------------------
}