1 files changed, 134 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39499.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39499.cs
new file mode 100644
index 00000000..44fa2899
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39499.cs
@@ -0,0 +1,134 @@
+using System;
+
+using Xamarin.Forms.CustomAttributes;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Collections.ObjectModel;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+#endif
+
+namespace Xamarin.Forms.Controls
+{
+	[Preserve (AllMembers = true)]
+	[Issue (IssueTracker.Bugzilla, 39499, "CarouselViewTest")]
+	public sealed class CarouselViewContentPage : TestContentPage // or TestMasterDetailPage, etc ...
+	{
+		[Preserve (AllMembers = true)]
+		public sealed class Item
+		{
+			static int s_id = 0;
+
+			int id;
+
+			internal Item()
+			{
+				id = s_id++;
+			}
+
+			public int Id => id;
+		}
+
+		[Preserve (AllMembers = true)]
+		public sealed class ItemView : ContentView
+		{
+			public ItemView ()
+			{
+				var idLabel = new Label () { StyleId = "id", TextColor = Color.White };
+				idLabel.SetBinding (Label.TextProperty, nameof(Item.Id));
+
+				var stackLayout = new StackLayout {
+					Children = {
+						new Label { Text = "Target" },
+						new Label { Text = "Stack" }
+					},
+					BackgroundColor = Color.Red
+				};
+
+				var button = CreateButton ("Hide Target Stack", () => {
+					stackLayout.IsVisible = false;
+				});
+
+				Content = new StackLayout {
+					Children = {
+						idLabel,
+						button,
+						stackLayout,
+					}
+				};
+			}
+
+			Button CreateButton(string text, Action clicked)
+			{
+				var button = new Button ();
+				button.Text = text;
+				button.Clicked += (s, e) => {
+					clicked ();
+				};
+				return button;
+			}
+		}
+
+		static readonly IList<Item> Items = new ObservableCollection<Item> () {
+			new Item(),
+			new Item(),
+		};
+
+		Button CreateButton(string text, Action onClicked = null)
+		{
+			var button = new Button {
+				Text = text
+			};
+
+			if (onClicked != null)
+				button.Clicked += (s, e) => onClicked();
+
+			return button;
+		}
+
+		protected override void Init ()
+		{
+			BackgroundColor = Color.Blue;
+
+			var carouselView = new CarouselView {
+				BackgroundColor = Color.Purple,
+				ItemsSource = Items,
+				ItemTemplate = new DataTemplate(typeof(ItemView)),
+				Position = 0
+			};
+
+			var moveBar = new StackLayout {
+				Orientation = StackOrientation.Horizontal,
+				HorizontalOptions = LayoutOptions.FillAndExpand,
+				Children = {
+						CreateButton ("<<", () => carouselView.Position = 0),
+						CreateButton ("<", () => { try { carouselView.Position--; } catch { } }),
+						CreateButton (">", () => { try { carouselView.Position++; } catch { } }),
+						CreateButton (">>", () => carouselView.Position = Items.Count - 1)
+					}
+			};
+
+			Content = new StackLayout {
+				Children = {
+					carouselView,
+					moveBar,
+				}
+			};
+		}
+
+#if UITEST
+		//[Test]
+		public void CarouselViewTest ()
+		{
+			var app = RunningApp;
+			app.Screenshot ("I am at Issue 1");
+			app.WaitForElement (q => q.Marked ("Remove"));
+
+			app.Screenshot ("I see the Label");
+		}
+#endif
+	}
+}