public void MovingItemsResetsGuardProperties()
{
var child0 = new TestTreeItem(0);
var child1 = new TestTreeItem(1);
var child2 = new TestTreeItem(2);
var child3 = new TestTreeItem(3);
var child4 = new TestTreeItem(4);
var parent = new TestTreeItem(0, child0, child1, child2, child3, child4);
child0.CanMoveUp.Should().BeFalse();
child1.CanMoveUp.Should().BeTrue();
child1.MoveUp();
child0.CanMoveUp.Should().BeTrue();
child1.CanMoveUp.Should().BeFalse();
child3.CanMoveDown.Should().BeTrue();
child4.CanMoveDown.Should().BeFalse();
child3.MoveDown();
child3.CanMoveDown.Should().BeFalse();
child4.CanMoveDown.Should().BeTrue();
}
public void MovingAnItemUpPreservesIndexes()
{
var child0 = new TestTreeItem(0);
var child1 = new TestTreeItem(1);
var child2 = new TestTreeItem(2);
var child3 = new TestTreeItem(3);
var child4 = new TestTreeItem(4);
var parent = new TestTreeItem(0, child0, child1, child2, child3, child4);
child2.MoveUp();
for (int i = 0; i < parent.Children.Count; ++i)
{
parent.Children[i].Index.Should().Be(i);
}
parent.Children[0].Should().Be(child0);
parent.Children[1].Should().Be(child2);
parent.Children[2].Should().Be(child1);
parent.Children[3].Should().Be(child3);
parent.Children[4].Should().Be(child4);
}
