public void EnumeratesWrappedItems()
{
var originalCollection = new ObservableCollection <ItemMetadata>()
{
new ItemMetadata(new object()),
new ItemMetadata(new object())
};
IViewsCollection viewsCollection = new ViewsCollection(originalCollection, x => true);
Assert.AreEqual(2, viewsCollection.Count());
Assert.AreSame(originalCollection[0].Item, viewsCollection.ElementAt(0));
Assert.AreSame(originalCollection[1].Item, viewsCollection.ElementAt(1));
}
public void ViewsCollectionSortedAfterAddingItemToOriginalCollection()
{
var originalCollection = new ObservableCollection <ItemMetadata>();
ViewsCollection viewsCollection = new ViewsCollection(originalCollection, (i) => true);
viewsCollection.SortComparison = Region.DefaultSortComparison;
var view1 = new MockSortableView1();
var view2 = new MockSortableView2();
var view3 = new MockSortableView3();
originalCollection.Add(new ItemMetadata(view2));
originalCollection.Add(new ItemMetadata(view3));
originalCollection.Add(new ItemMetadata(view1));
Assert.AreSame(view1, viewsCollection.ElementAt(0));
Assert.AreSame(view2, viewsCollection.ElementAt(1));
Assert.AreSame(view3, viewsCollection.ElementAt(2));
}
public void ChangingSortComparisonCausesResortingOfCollection()
{
var originalCollection = new ObservableCollection <ItemMetadata>();
ViewsCollection viewsCollection = new ViewsCollection(originalCollection, (i) => true);
var view1 = new MockSortableView1();
var view2 = new MockSortableView2();
var view3 = new MockSortableView3();
originalCollection.Add(new ItemMetadata(view2));
originalCollection.Add(new ItemMetadata(view3));
originalCollection.Add(new ItemMetadata(view1));
// ensure items are in original order
Assert.AreSame(view2, viewsCollection.ElementAt(0));
Assert.AreSame(view3, viewsCollection.ElementAt(1));
Assert.AreSame(view1, viewsCollection.ElementAt(2));
// change sort comparison
viewsCollection.SortComparison = Region.DefaultSortComparison;
// ensure items are properly sorted
Assert.AreSame(view1, viewsCollection.ElementAt(0));
Assert.AreSame(view2, viewsCollection.ElementAt(1));
Assert.AreSame(view3, viewsCollection.ElementAt(2));
}