public void GetSelfAndChildren_WhenNoChildren_ReturnsOnlySelf()
{
var s = new Child();
CollectionAssert.AreEqual(
new[] { s },
ScreenTreeHelper.GetChildrenOf(s, includeSelf: true).ToArray()
);
}
public void GetSelfAndChildren_WithChildren_ReturnsSelfAndChildren()
{
var p = new Parent();
var c = new Child();
p.Children.Attach(c);
var result = ScreenTreeHelper.GetChildrenOf(p, includeSelf: true).ToArray();
CollectionAssert.Contains(result, p);
CollectionAssert.Contains(result, c);
}
public void GetSelfAndChildren_WithGrandchildren_ReturnsSelfAndChildrenOnly()
{
var p = new Parent();
var child = new Parent();
var grand = new Child();
p.Children.Attach(child);
child.Children.Attach(grand);
var result = ScreenTreeHelper.GetChildrenOf(p, includeSelf: true).ToArray();
CollectionAssert.Contains(result, p);
CollectionAssert.Contains(result, child);
CollectionAssert.DoesNotContain(result, grand);
}
public void GetDescendantsOfWithoutSelf_ReturnsChildrenAndGrandchildren()
{
var p = new Parent();
var child = new Parent();
var grand = new Child();
p.Children.Attach(child);
child.Children.Attach(grand);
var result = ScreenTreeHelper.GetDescendantsOf(p, includeSelf: false);
CollectionAssert.AreEqual(
new IScreenBase[] { child, grand },
result.ToArray()
);
}
public Window GetAssociatedWindow(IScreenBase screen)
{
if (screen == null)
{
return(null);
}
WindowLifecycle lf = ScreenTreeHelper
.GetAncestorsOf(screen, includeSelf: true)
.SelectMany(s => s.Children.OfType <WindowLifecycle>())
.FirstOrDefault();
if (lf != null)
{
return(lf.Window);
}
throw new ArgumentException(ExceptionTexts.NoAssociatedWindow);
}
