Ensure views have size in Android tests so we know they've been laid out

src/Controls/tests/DeviceTests/Extensions.cs

@@ -20,7 +20,7 @@ namespace Microsoft.Maui.DeviceTests
 	public static class Extensions
 	{
 		public static Task WaitUntilLoaded(this Image image, int timeout = 1000) =>
-			AssertEventually(() => !image.IsLoading, timeout);
+			AssertEventually(() => !image.IsLoading, timeout, message: $"Timed out loading image {image}");
 
 		public static void SetupShellHandlers(this MauiAppBuilder builder)
 		{

src/TestUtils/src/DeviceTests/AssertionExtensions.Android.cs

@@ -20,6 +20,7 @@
 using MColor = Microsoft.Maui.Graphics.Color;
 using SearchView = AndroidX.AppCompat.Widget.SearchView;
 using static Microsoft.Maui.DeviceTests.AssertHelpers;
+using AndroidX.Core.View;
 
 namespace Microsoft.Maui.DeviceTests
 {
@@ -217,7 +218,7 @@ public static async Task WaitForKeyboardToHide(this AView view, int timeout = 10
 		public static Task WaitForLayoutOrNonZeroSize(this AView view, int timeout = 1000) =>
 			Task.WhenAll(
 				view.WaitForLayout(timeout),
-				AssertEventually(() => view.Width > 0 && view.Height > 0, timeout, 
+				AssertEventually(() => ViewCompat.IsLaidOut(view), timeout, 
 					message: $"Timed out waiting for {view} to have {nameof(view.Width)} and {nameof(view.Height)} greater than zero"));
 
 		public static Task<bool> WaitForLayout(this AView view, int timeout = 1000)
@@ -333,6 +334,13 @@ public static async Task<T> AttachAndRun<T>(this AView view, Func<Task<T>> actio
 					Gravity = GravityFlags.Center
 				};
 
+				// Ensure that the view gets _some_ width/height; the combination of WrapContent and Center above means that 
+				// the default Fill layout options will have no effect, so unless the root test object or its Content has a
+				// WidthRequest/HeightRequest, the actual layout height and width may be zero 
+
+				view.SetMinimumWidth(40);
+				view.SetMinimumHeight(40);
+
 				var act = context.GetActivity()!;
 				var rootView = act.FindViewById<FrameLayout>(Android.Resource.Id.Content)!;