From 92284afa14a42b26ad4d8893c0b923d17f9e8a69 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Sat, 11 May 2019 12:22:26 +0200
Subject: [PATCH] Added failing test for #2507.

---
 .../CarouselTests.cs                          | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tests/Avalonia.Controls.UnitTests/CarouselTests.cs b/tests/Avalonia.Controls.UnitTests/CarouselTests.cs
index 2070b4b66a..515e18434d 100644
--- a/tests/Avalonia.Controls.UnitTests/CarouselTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/CarouselTests.cs
@@ -152,6 +152,29 @@ namespace Avalonia.Controls.UnitTests
             Assert.Equal("Bar", ((TextBlock)child).Text);
         }
 
+        [Fact]
+        public void Selected_Item_Changes_To_First_Item_When_Item_Added()
+        {
+            var items = new ObservableCollection<string>();
+            var target = new Carousel
+            {
+                Template = new FuncControlTemplate<Carousel>(CreateTemplate),
+                Items = items,
+                IsVirtualized = false
+            };
+
+            target.ApplyTemplate();
+            target.Presenter.ApplyTemplate();
+
+            Assert.Equal(-1, target.SelectedIndex);
+            Assert.Empty(target.GetLogicalChildren());
+
+            items.Add("Foo");
+
+            Assert.Equal(0, target.SelectedIndex);
+            Assert.Single(target.GetLogicalChildren());
+        }
+
         [Fact]
         public void Selected_Index_Changes_To_When_Items_Assigned_Null()
         {