Added device test

Author: NanthiniMahalingam

src/Controls/src/Core/View/View.cs

@@ -17,7 +17,7 @@ namespace Microsoft.Maui.Controls
 	/// This is the base class for <see cref="Layout"/> and most of the controls.
 	/// Because <see cref="View" /> ultimately inherits from <see cref="BindableObject" />, application developers can use the Model-View-ViewModel architecture, as well as XAML, to develop portable user interfaces.
 	/// </remarks>
-	public partial class View : VisualElement, IViewController, IGestureController, IGestureRecognizers, IView, IPropertyMapperView, IHotReloadableView, IControlsView
+	public partial class View : VisualElement, IViewController, IGestureController, IGestureRecognizers, IView, IPropertyMapperView, IHotReloadableView, IControlsView, IViewWithWindow
 	{
 		protected internal IGestureController GestureController => this;
 
@@ -282,6 +282,7 @@ bool ValidateGesture(IGestureRecognizer gesture)
 		Thickness IView.Margin => Margin;
 		partial void HandlerChangedPartial();
 		GestureManager _gestureManager;
+		IWindow? IViewWithWindow.Window => Window;
 
 		private protected override void OnHandlerChangedCore()
 		{

src/Controls/tests/DeviceTests/Elements/View/ViewTests.Android.cs

@@ -16,6 +16,7 @@
 using Microsoft.Maui.Platform;
 using Xunit;
 using Xunit.Sdk;
+using Microsoft.Maui.Devices;
 
 namespace Microsoft.Maui.DeviceTests
 {
@@ -81,8 +82,7 @@ await CreateHandlerAndAddToWindow(grid, (LayoutHandler handler) =>
 
 						// This fails sometimes due to the way we arrange the content based on coordinates instead of size
 						// Assert.Equal(expectedWidth, pxFrame.Width);
-						Assert.True(pxFrame.Left == lastRight);
-
+						Assert.True(pxFrame.Left == lastRight, $"ColumnCount: {columnCount} Expected Left {lastRight} but got {pxFrame.Left} for child {i} Device Info: {DeviceDisplay.Current.MainDisplayInfo}");
 						lastRight = pxFrame.Right;
 					}
 				});

src/Controls/tests/DeviceTests/Stubs/WindowHandlerStub.Android.cs

@@ -17,6 +17,11 @@ public class WindowHandlerStub : ElementHandler<IWindow, AActivity>, IWindowHand
 			[nameof(IWindow.Content)] = MapContent
 		};
 
+		public static CommandMapper<IWindow, IWindowHandler> CommandMapper = new(ElementCommandMapper)
+		{
+			[nameof(IWindow.RequestDisplayDensity)] = WindowHandler.MapRequestDisplayDensity,
+		};
+
 		public AView PlatformViewUnderTest { get; private set; }
 
 		void UpdateContent()
@@ -50,7 +55,7 @@ protected override void DisconnectHandler(AActivity platformView)
 		}
 
 		public WindowHandlerStub()
-			: base(WindowMapper)
+			: base(WindowMapper, CommandMapper)
 		{
 		}