1 files changed, 77 insertions, 0 deletions
diff --git a/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1691.cs b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1691.cs
new file mode 100644
index 00000000..110f9093
--- /dev/null
+++ b/Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue1691.cs
@@ -0,0 +1,77 @@
+using System;
+using System.Collections.ObjectModel;
+using System.Linq;
+
+using Xamarin.Forms.CustomAttributes;
+
+#if UITEST
+using Xamarin.UITest;
+using NUnit.Framework;
+using System.Diagnostics;
+#endif
+
+namespace Xamarin.Forms.Controls
+{
+	[Preserve (AllMembers = true)]
+	[Issue (IssueTracker.Github, 1691, "CarouselPage iOS CurrentPage bug")]
+	public class Issue1691 : TestCarouselPage
+	{
+		int _currentIndex;
+		int _page = 9;
+
+		protected override void Init ()
+		{
+			_currentIndex = 10;
+			ItemsSource = new ObservableCollection<int>() { _currentIndex };
+			SelectedItem = ((ObservableCollection<int>)ItemsSource)[0];
+		}
+
+		protected override ContentPage CreateDefault (object item)
+		{
+			var currentInt = item as int?;
+
+			var label = new Label {
+				Text = "Page " + currentInt,
+			}; 
+
+			return new ContentPage {
+				Content = new StackLayout {
+					Children = {
+						label, 
+						new Button {
+							AutomationId = "CreatePreviousPage" + currentInt,
+							Text = "Create previous page",
+							Command = new Command (() => {
+								((ObservableCollection<int>)ItemsSource).Insert (0, _page);
+								_page--;
+								label.Text = "Page Created";
+							})
+						},
+						new Button {
+							AutomationId = "GoToPreviousPage" + currentInt,
+							Text = "Go to previous page",
+							Command = new Command (() => {
+								CurrentPage = Children[0];
+							})
+						}
+					}
+				}
+			};
+		}
+
+#if UITEST
+		[Test]
+		public void Issue1691Test ()
+		{
+			RunningApp.Screenshot ("I am at Issue 1691");
+			RunningApp.Tap (q => q.Marked ("CreatePreviousPage10"));
+			RunningApp.WaitForElement (q => q.Marked ("Page Created"));
+			RunningApp.Screenshot ("I should be on the same page with a new page created to the left");
+			RunningApp.Tap (q => q.Marked ("GoToPreviousPage10"));
+			RunningApp.WaitForNoElement (q => q.Marked ("GoToPreviousPage10"));
+			RunningApp.Screenshot ("I should be on page 9");
+			RunningApp.WaitForElement (q => q.Marked ("GoToPreviousPage9"));
+		}
+#endif
+	}
+}