public void EntityContainer_GetChanges()
{
TestEntityContainer container = new TestEntityContainer();
container.LoadEntities(_cities);
EntityChangeSet changeset = container.GetChanges();
Assert.IsNotNull(changeset);
Assert.IsTrue(changeset.IsEmpty);
// invoke domain method on 2 cities and verify invocation is in changeset
// TODO: need 2 separate legal domain methods
_cities[0].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
_cities[2].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
changeset = container.GetChanges();
Assert.IsTrue(changeset.AddedEntities.Count == 0);
Assert.IsTrue(changeset.ModifiedEntities.Count == 2);
Assert.IsTrue(changeset.RemovedEntities.Count == 0);
Assert.AreEqual<string>(_assignCityZone.Name, changeset.ModifiedEntities[0].EntityActions.Single().Name);
Assert.AreEqual<string>(_assignCityZone.Name, changeset.ModifiedEntities[1].EntityActions.Single().Name);
// revert one of the domain method invocations. verify invocation in changeset is updated
((System.ComponentModel.IRevertibleChangeTracking)_cities[0]).RejectChanges();
changeset = container.GetChanges();
City returned = changeset.ModifiedEntities.Single(p => p == _cities[2]) as City;
Assert.IsNotNull(returned);
Assert.AreEqual<string>(_assignCityZone.Name, returned.EntityActions.Single().Name);
Assert.AreEqual<int>(_assignCityZone.Parameters.Count(), returned.EntityActions.Single().Parameters.Count());
}
public void EntityContainer_GetChanges_DetachAfterInvoke()
{
TestEntityContainer container = new TestEntityContainer();
container.LoadEntities(_cities);
EntityChangeSet changeset = container.GetChanges();
Assert.IsTrue(changeset.IsEmpty);
// invoke then delete the entity. Verify the ModifiedEntities are updated
_cities[0].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
Assert.AreEqual(1, _cities[0].EntityActions.Count());
Assert.AreEqual(1, container.GetChanges().ModifiedEntities.Count());
container.GetEntitySet<City>().Detach(_cities[0]);
Assert.AreEqual(0, container.GetChanges().ModifiedEntities.Count());
}
public void Entity_CancelEdit()
{
// verify that DomainMethod invocations participate in IEditableObject sessions properly
TestEntityContainer container = new TestEntityContainer();
container.LoadEntities(_cities);
System.ComponentModel.IEditableObject editableCity = _cities[0] as System.ComponentModel.IEditableObject;
Assert.IsNotNull(editableCity);
editableCity.BeginEdit();
int prevZoneID = _cities[0].ZoneID;
_cities[0].ZoneID = 777;
_cities[0].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
Assert.AreEqual(1, _cities[0].EntityActions.Count());
// cancel editing. Domain method invocation and property updates are reverted
editableCity.CancelEdit();
Assert.AreEqual(prevZoneID, _cities[0].ZoneID);
Assert.AreEqual(0, _cities[0].EntityActions.Count());
Assert.AreEqual(EntityState.Unmodified, _cities[0].EntityState);
Assert.IsTrue(container.GetChanges().IsEmpty);
// now start an edit session with a modified entity
// and verify same results
_cities[0].ZoneID = 777;
Assert.AreEqual(EntityState.Modified, _cities[0].EntityState);
editableCity.BeginEdit();
_cities[0].ZoneID = 888;
_cities[0].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
editableCity.CancelEdit();
Assert.AreEqual(777, _cities[0].ZoneID);
Assert.AreEqual(0, _cities[0].EntityActions.Count());
Assert.AreEqual(EntityState.Modified, _cities[0].EntityState);
// now test an edit session where only a DM was invoked (no property edits)
((System.ComponentModel.IRevertibleChangeTracking)_cities[0]).RejectChanges();
Assert.AreEqual(EntityState.Unmodified, _cities[0].EntityState);
editableCity.BeginEdit();
_cities[0].InvokeAction(_assignCityZone.Name, _assignCityZone.Parameters.ToArray<object>());
Assert.AreEqual(EntityState.Modified, _cities[0].EntityState);
editableCity.CancelEdit();
Assert.AreEqual(EntityState.Unmodified, _cities[0].EntityState);
Assert.IsTrue(container.GetChanges().IsEmpty);
}