Refactored subview methods

UnitTests/FileServices/FileDialogTests.cs

@@ -99,13 +99,9 @@ public class FileDialogTests (ITestOutputHelper output)
         string openIn = Path.Combine (Environment.CurrentDirectory, "zz");
         Directory.CreateDirectory (openIn);
         dlg.Path = openIn + Path.DirectorySeparatorChar;
-#if BROKE_IN_2927
-        Send ('f', ConsoleKey.F, false, true, false);
-#else
         Application.OnKeyDown (Key.Tab);
         Application.OnKeyDown (Key.Tab);
         Application.OnKeyDown (Key.Tab);
-#endif
 
         Assert.IsType<TextField> (dlg.MostFocused);
         var tf = (TextField)dlg.MostFocused;

UnitTests/View/SubviewTests.cs

@@ -373,4 +373,130 @@ public class SubviewTests
         view.Remove (subview);
         Assert.Equal (new Size (5, 5), view.GetContentSize ());
     }
+
+    [Fact]
+    public void MoveSubviewToStart ()
+    {
+        View superView = new ();
+
+        View subview1 = new View ()
+        {
+            Id = "subview1"
+        };
+
+        View subview2 = new View ()
+        {
+            Id = "subview2"
+        };
+
+        View subview3 = new View ()
+        {
+            Id = "subview3"
+        };
+
+        superView.Add (subview1, subview2, subview3);
+
+        superView.MoveSubviewToStart (subview2);
+        Assert.Equal(subview2, superView.Subviews [0]);
+
+        superView.MoveSubviewToStart (subview3);
+        Assert.Equal (subview3, superView.Subviews [0]);
+    }
+
+
+    [Fact]
+    public void MoveSubviewTowardsFront ()
+    {
+        View superView = new ();
+
+        View subview1 = new View ()
+        {
+            Id = "subview1"
+        };
+
+        View subview2 = new View ()
+        {
+            Id = "subview2"
+        };
+
+        View subview3 = new View ()
+        {
+            Id = "subview3"
+        };
+
+        superView.Add (subview1, subview2, subview3);
+
+        superView.MoveSubviewTowardsFront (subview2);
+        Assert.Equal (subview2, superView.Subviews [0]);
+
+        superView.MoveSubviewTowardsFront (subview3);
+        Assert.Equal (subview3, superView.Subviews [1]);
+
+        // Already at front, what happens?
+        superView.MoveSubviewTowardsFront (subview2);
+        Assert.Equal (subview2, superView.Subviews [0]);
+    }
+
+    [Fact]
+    public void MoveSubviewToEnd ()
+    {
+        View superView = new ();
+
+        View subview1 = new View ()
+        {
+            Id = "subview1"
+        };
+
+        View subview2 = new View ()
+        {
+            Id = "subview2"
+        };
+
+        View subview3 = new View ()
+        {
+            Id = "subview3"
+        };
+
+        superView.Add (subview1, subview2, subview3);
+
+        superView.MoveSubviewToEnd (subview1);
+        Assert.Equal (subview1, superView.Subviews [^1]);
+
+        superView.MoveSubviewToEnd (subview2);
+        Assert.Equal (subview2, superView.Subviews [^1]);
+    }
+
+
+    [Fact]
+    public void MoveSubviewTowardsEnd ()
+    {
+        View superView = new ();
+
+        View subview1 = new View ()
+        {
+            Id = "subview1"
+        };
+
+        View subview2 = new View ()
+        {
+            Id = "subview2"
+        };
+
+        View subview3 = new View ()
+        {
+            Id = "subview3"
+        };
+
+        superView.Add (subview1, subview2, subview3);
+
+        superView.MoveSubviewTowardsEnd (subview2);
+        Assert.Equal (subview2, superView.Subviews [^1]);
+
+        superView.MoveSubviewTowardsEnd (subview1);
+        Assert.Equal (subview1, superView.Subviews [1]);
+
+        // Already at end, what happens?
+        superView.MoveSubviewTowardsEnd (subview2);
+        Assert.Equal (subview2, superView.Subviews [^1]);
+    }
 }