public void TransformingConstructorTest()
{
var currentMethodName = this.GetCurrentMethodName();
var sourceCollection = new VirtualizingObservableCollection <Item>(new VirtualizingObservableCollectionSource <Item>());
var collectionSource = new VirtualizingObservableCollectionTransformingPagedSource <ItemTransformed, Item>(sourceCollection, sItem => new ItemTransformed(sItem), itemTransformed => itemTransformed.Item);
var collection = new VirtualizingObservableCollection <ItemTransformed>(new PaginationManager <ItemTransformed>(collectionSource));
collection.CollectionChanged += this.collection_CollectionChanged;
collection.PropertyChanged += this.collection_PropertyChanged;
var iterations = 3;
this._testStopwatch.Start($"{currentMethodName} ");
for (var i = 0; i < iterations; i++)
{
sourceCollection.Add(_data[i]);
}
this._testStopwatch.Stop();
Assert.AreEqual(iterations, ItemTransformed.ObjectsConstructed);
}
public void VirtualizingObservableCollectionTransformingPagedSourceConcurrencyTest()
{
var currentMethodName = this.GetCurrentMethodName();
var sourceCollection = new VirtualizingObservableCollection <Item>(new VirtualizingObservableCollectionSource <Item>());
var collectionSource = new VirtualizingObservableCollectionTransformingPagedSource <Item, Item>(sourceCollection, sItem => new Item(sItem.I), sItem => new Item(sItem.I));
var collection = new VirtualizingObservableCollection <Item>(collectionSource);
collection.CollectionChanged += this.collection_CollectionChanged;
collection.PropertyChanged += this.collection_PropertyChanged;
this._testStopwatch.Start($"{currentMethodName} iterative add with notifications");
for (var i = 0; i < Iterations; i++)
{
sourceCollection.Add(_data[i]);
}
this._testStopwatch.Stop();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
sourceCollection.Clear();
this._testStopwatch.Start($"{currentMethodName} parallel add with notifications");
Parallel.ForEach(_data, item => { sourceCollection.Add(item); });
this._testStopwatch.Stop();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
sourceCollection.Clear();
collection.Clear();
this._testStopwatch.Start($"{currentMethodName} parallel add int without interlocked");
Parallel.ForEach(_data, item => { sourceCollection.Add(item); });
this._testStopwatch.Stop();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
sourceCollection.Clear();
this._testStopwatch.Start($"{currentMethodName} Iterative add with parallel read");
Parallel.Invoke(() => this.Add(sourceCollection), () => this.Iteration(collection));
this._testStopwatch.Stop();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
sourceCollection.Clear();
this._testStopwatch.Start($"{currentMethodName} Iterative add with parallel read and remove");
var task = Task.Factory.StartNew(() => this.RemoveRandom(sourceCollection));
Parallel.Invoke(() => this.Add(sourceCollection), () => this.Iteration(collection));
this._testStopwatch.Stop();
this.IsRandomCanceled = true;
task.Wait();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
this.RemovedObjects.Clear();
sourceCollection.Clear();
this._testStopwatch.Start($"{currentMethodName} Iterative add with parallel long read and remove");
task = Task.Factory.StartNew(() => this.RemoveRandom(sourceCollection));
Parallel.Invoke(() => this.Add(sourceCollection), () => this.IterationLong(collection));
this._testStopwatch.Stop();
this.IsRandomCanceled = true;
task.Wait();
//this.CheckDataConsistency(collection);
this.CheckDataConsistency(sourceCollection);
Assert.AreEqual(Iterations, this.RemovedObjects.Count - collection.Count());
this.RemovedObjects.Clear();
sourceCollection.Clear();
}
