public void SelectAll(int size)
{
var collection = new VirtualCollection(size);
var selection = new AsyncDataGridRowSelection(collection);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
collection.FocusIndex = 3;
selection.SelectAll();
Assert.Equal(R(0, size), selection.GetSnapshot());
Assert.Equal(3, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
public void SelectAll_NonEmpty()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
selection.Select(5);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.SelectAll();
Assert.Equal(R(0, 10), selection.GetSnapshot());
Assert.Equal(5, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
