public void Select_Single(int index)
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.Select(index);
Assert.Equal(R(index), selection.GetSnapshot());
Assert.Equal(index, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
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 Select_Multiple_NoExtend()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.Select(1);
selection.Select(2);
Assert.Equal(R(2), selection.GetSnapshot());
Assert.Equal(2, collection.FocusIndex);
Assert.Equal(2, selectionChanged);
}
public void Select_IgnoresOutOfRange()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
collection.FocusIndex = 3;
selection.Select(10);
Assert.Equal(new MultiRange(), selection.GetSnapshot());
Assert.Equal(3, collection.FocusIndex);
Assert.Equal(0, selectionChanged);
}
public void SelectRange_Extend()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
selection.Select(7);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.SelectRange(2, 5, true);
Assert.Equal(R(2, 6, 7, 8), selection.GetSnapshot());
Assert.Equal(7, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
public void SelectRange_NonEmpty()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
selection.Select(5);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.SelectRange(2, 5);
Assert.Equal(R(2, 6), selection.GetSnapshot());
Assert.Equal(5, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
public void ToggleExtent_ExtendForward()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
selection.Select(1);
selection.ToggleSingle(3, true);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.ToggleExtent(5, true);
Assert.Equal(R(1, 2, 3, 6), selection.GetSnapshot());
Assert.Equal(5, collection.FocusIndex);
Assert.Equal(1, selectionChanged);
}
public void ToggleSingle_Extend()
{
var collection = new VirtualCollection(10);
var selection = new AsyncDataGridRowSelection(collection);
selection.Select(5);
int selectionChanged = 0;
selection.SelectionChanged += (s, e) => ++ selectionChanged;
selection.ToggleSingle(2, true);
selection.ToggleSingle(3, true);
Assert.Equal(R(2, 4, 5, 6), selection.GetSnapshot());
Assert.Equal(3, collection.FocusIndex);
Assert.Equal(2, selectionChanged);
}
