public void SerializationIntegration()
{
//Load the model
var repository = new ModelRepository();
var model = LoadRailwayModel(repository);
//Create the recorder
var recorder = new ModelChangeRecorder();
recorder.Start(model);
//Change the model
var route = new Route() { Id = 42 };
model.Routes.Add(route);
model.Routes[0].DefinedBy.RemoveAt(0);
model.Routes[0].DefinedBy[0].Elements.RemoveAt(0);
model.Semaphores[0].Signal = Signal.FAILURE;
//Parse the changes
var changes = recorder.GetModelChanges();
//Serialize the changes
var types = changes.TraverseFlat().Select(t => t.GetType()).Distinct();
var serializer = new XmiSerializer(types);
string xmi;
using (var writer = new StringWriter())
{
serializer.Serialize(changes, writer);
xmi = writer.ToString();
}
//Deserialize the XMI
ModelChangeCollection newChanges;
using (var reader = new StringReader(xmi))
{
newChanges = serializer.Deserialize(reader) as ModelChangeCollection;
}
Assert.IsNotNull(newChanges);
//Since model elements don't implement Equals() we can only test for property equality
var newRoute = ((ListInsertionComposition<IRoute>)((ChangeTransaction)newChanges.Changes[0]).SourceChange).NewElements[0];
Assert.AreEqual(route.Id, newRoute.Id);
//We have to leave out the changes with model elements in them when tesing for equality
CollectionAssert.AreEqual(changes.Changes.Skip(1).ToArray(), newChanges.Changes.Skip(1).ToArray());
//Load second instance of the model
var newRepository = new ModelRepository();
var newModel = LoadRailwayModel(newRepository);
//Apply changes to the new model
newChanges.Apply(newRepository);
Assert.AreEqual(model.Routes.Count, newModel.Routes.Count);
Assert.AreEqual(model.Routes[0].DefinedBy.Count, newModel.Routes[0].DefinedBy.Count);
Assert.AreEqual(model.Routes[0].DefinedBy[0].Elements.Count, newModel.Routes[0].DefinedBy[0].Elements.Count);
Assert.AreEqual(model.Semaphores[0].Signal, newModel.Semaphores[0].Signal);
}
public void RecordListDeletion()
{
var rec = new ModelChangeRecorder();
rec.Start(railway);
railway.Semaphores.RemoveAt(0);
var expected = new ListDeletion(railway.AbsoluteUri, "Semaphores", 0, 1);
var actual = ((ChangeTransaction)rec.GetModelChanges().Changes[0]).SourceChange;
Assert.AreEqual(expected, actual);
}
public void RecordListClear()
{
var parent = railway.Routes[0].DefinedBy[0].Elements[0];
var rec = new ModelChangeRecorder();
rec.Start(railway);
parent.ConnectsTo.Clear();
var expected = new ListDeletion(parent.AbsoluteUri, "ConnectsTo", 0, int.MaxValue);
var actual = rec.GetModelChanges().Changes[0];
Assert.AreEqual(expected, actual);
}
public void RecordElementDeletion()
{
var toDelete = railway.Routes[0];
var expected = new ElementDeletion(toDelete.AbsoluteUri);
var rec = new ModelChangeRecorder();
rec.Start(railway);
toDelete.Delete();
var actual = ((ChangeTransaction)rec.GetModelChanges().Changes[0]).SourceChange;
Assert.AreEqual(expected, actual);
}
public void RecordListInsertionComposition()
{
var semaphore = new Semaphore { Signal = Signal.STOP };
var rec = new ModelChangeRecorder();
rec.Start(railway);
railway.Semaphores.Insert(0, semaphore);
var expected = new ChangeTransaction()
{
SourceChange = new ListInsertionComposition<ISemaphore>(railway.AbsoluteUri, "Semaphores", 0, new List<ISemaphore>() { semaphore }),
NestedChanges = new List<IModelChange>() { new ElementCreation(semaphore) }
};
var actual = rec.GetModelChanges().Changes[0];
Assert.AreEqual(expected, actual);
}
public void RecordListInsertionAssociation()
{
var parent = railway.Routes[0].DefinedBy[0].Elements[0];
var newItem = railway.Routes[0].DefinedBy[1].Elements[0];
var rec = new ModelChangeRecorder();
rec.Start(railway);
parent.ConnectsTo.Insert(0, newItem);
var expected = new List<IModelChange>()
{
new ListInsertionAssociation<ITrackElement>(parent.AbsoluteUri, "ConnectsTo", 0, new List<Uri>() { newItem.AbsoluteUri })
};
var actual = rec.GetModelChanges().Changes;
CollectionAssert.AreEqual(expected, actual);
}
public void RecordPropertyChangeReference()
{
var parent = railway.Routes[0];
var rec = new ModelChangeRecorder();
rec.Start(railway);
parent.Entry = railway.Semaphores[0];
var expected = new PropertyChangeReference<ISemaphore>(parent.AbsoluteUri, "Entry", railway.Semaphores[0].AbsoluteUri);
var actual = rec.GetModelChanges().Changes[0];
Assert.AreEqual(expected, actual);
}
public void RecordPropertyChangeAttribute()
{
var semaphore = railway.Semaphores[0];
var rec = new ModelChangeRecorder();
rec.Start(railway);
semaphore.Signal = Signal.FAILURE;
var expected = new PropertyChangeAttribute<Signal>(semaphore.AbsoluteUri, "Signal", Signal.FAILURE);
var actual = rec.GetModelChanges().Changes[0];
Assert.AreEqual(expected, actual);
}
public void SerializationIntegration()
{
//Load the model
var repository = new ModelRepository();
var model = LoadRailwayModel(repository);
//Create the recorder
var recorder = new ModelChangeRecorder();
recorder.Start(model);
//Change the model
var route = new Route()
{
Id = 42
};
model.Routes.Add(route);
model.Routes[0].DefinedBy.RemoveAt(0);
model.Routes[0].DefinedBy[0].Elements.RemoveAt(0);
model.Semaphores[0].Signal = Signal.FAILURE;
//Parse the changes
var changes = recorder.GetModelChanges();
//Serialize the changes
var types = changes.TraverseFlat().Select(t => t.GetType()).Distinct();
var serializer = new XmiSerializer(types);
string xmi;
using (var writer = new StringWriter())
{
serializer.Serialize(changes, writer);
xmi = writer.ToString();
}
//Deserialize the XMI
ModelChangeCollection newChanges;
using (var reader = new StringReader(xmi))
{
newChanges = serializer.Deserialize(reader) as ModelChangeCollection;
}
Assert.IsNotNull(newChanges);
//Since model elements don't implement Equals() we can only test for property equality
var newRoute = ((ListInsertionComposition <IRoute>)((ChangeTransaction)newChanges.Changes[0]).SourceChange).NewElements[0];
Assert.AreEqual(route.Id, newRoute.Id);
//We have to leave out the changes with model elements in them when tesing for equality
CollectionAssert.AreEqual(changes.Changes.Skip(1).ToArray(), newChanges.Changes.Skip(1).ToArray());
//Load second instance of the model
var newRepository = new ModelRepository();
var newModel = LoadRailwayModel(newRepository);
//Apply changes to the new model
newChanges.Apply(newRepository);
Assert.AreEqual(model.Routes.Count, newModel.Routes.Count);
Assert.AreEqual(model.Routes[0].DefinedBy.Count, newModel.Routes[0].DefinedBy.Count);
Assert.AreEqual(model.Routes[0].DefinedBy[0].Elements.Count, newModel.Routes[0].DefinedBy[0].Elements.Count);
Assert.AreEqual(model.Semaphores[0].Signal, newModel.Semaphores[0].Signal);
}