Adjust a few expected test results.

tests/Avalonia.Controls.UnitTests/CarouselTests.cs

@@ -265,7 +265,7 @@ namespace Avalonia.Controls.UnitTests
         }
 
         [Fact]
-        public void Selected_Item_Changes_To_NextAvailable_Item_If_SelectedItem_Is_Removed_From_Middle()
+        public void Selected_Item_Changes_To_First_Item_If_SelectedItem_Is_Removed_From_Middle()
         {
             var items = new ObservableCollection<string>
             {
@@ -288,8 +288,8 @@ namespace Avalonia.Controls.UnitTests
 
             items.RemoveAt(1);
 
-            Assert.Equal(1, target.SelectedIndex);
-            Assert.Equal("FooBar", target.SelectedItem);
+            Assert.Equal(0, target.SelectedIndex);
+            Assert.Equal("Foo", target.SelectedItem);
         }
 
         private Control CreateTemplate(Carousel control, INameScope scope)

tests/Avalonia.Controls.UnitTests/Primitives/SelectingItemsControlTests_Multiple.cs

@@ -367,7 +367,7 @@ namespace Avalonia.Controls.UnitTests.Primitives
             target.SelectedIndex = 3;
             target.SelectRange(1);
 
-            Assert.Equal(new[] { "qux", "baz", "bar" }, target.SelectedItems.Cast<object>().ToList());
+            Assert.Equal(new[] { "bar", "baz", "qux" }, target.SelectedItems.Cast<object>().ToList());
         }
 
         [Fact]
@@ -1111,7 +1111,7 @@ namespace Avalonia.Controls.UnitTests.Primitives
             target.SelectAll();
             items[1] = "Qux";
 
-            Assert.Equal(new[] { "Foo", "Qux", "Baz" }, target.SelectedItems);
+            Assert.Equal(new[] { "Foo", "Baz" }, target.SelectedItems);
         }
 
         [Fact]

tests/Avalonia.Controls.UnitTests/Primitives/TabStripTests.cs

@@ -67,7 +67,7 @@ namespace Avalonia.Controls.UnitTests.Primitives
         }
 
         [Fact]
-        public void Removing_Selected_Should_Select_Next()
+        public void Removing_Selected_Should_Select_First()
         {
             var items = new ObservableCollection<TabItem>()
             {
@@ -96,10 +96,9 @@ namespace Avalonia.Controls.UnitTests.Primitives
             Assert.Same(items[1], target.SelectedItem);
             items.RemoveAt(1);
 
-            // Assert for former element [2] now [1] == "3rd"
-            Assert.Equal(1, target.SelectedIndex);
-            Assert.Same(items[1], target.SelectedItem);
-            Assert.Same("3rd", ((TabItem)target.SelectedItem).Name);
+            Assert.Equal(0, target.SelectedIndex);
+            Assert.Same(items[0], target.SelectedItem);
+            Assert.Same("first", ((TabItem)target.SelectedItem).Name);
         }
 
         private Control CreateTabStripTemplate(TabStrip parent, INameScope scope)

tests/Avalonia.Controls.UnitTests/TabControlTests.cs

@@ -95,7 +95,7 @@ namespace Avalonia.Controls.UnitTests
         }
 
         [Fact]
-        public void Removal_Should_Set_Next_Tab()
+        public void Removal_Should_Set_First_Tab()
         {
             var collection = new ObservableCollection<TabItem>()
             {
@@ -126,8 +126,7 @@ namespace Avalonia.Controls.UnitTests
             target.SelectedItem = collection[1];
             collection.RemoveAt(1);
 
-            // compare with former [2] now [1] == "3rd"
-            Assert.Same(collection[1], target.SelectedItem);
+            Assert.Same(collection[0], target.SelectedItem);
         }
 
         [Fact]