diff --git a/tests/Avalonia.Controls.UnitTests/ComboBoxTests.cs b/tests/Avalonia.Controls.UnitTests/ComboBoxTests.cs
index 599e214b31..81908b5147 100644
--- a/tests/Avalonia.Controls.UnitTests/ComboBoxTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/ComboBoxTests.cs
@@ -108,5 +108,36 @@ namespace Avalonia.Controls.UnitTests
                 };
             });
         }
+
+        [Fact]
+        public void Detaching_Closed_ComboBox_Keeps_Current_Focus()
+        {
+            using (UnitTestApplication.Start(TestServices.RealFocus))
+            {
+                var target = new ComboBox
+                {
+                    Items = new[] { new Canvas() },
+                    SelectedIndex = 0,
+                    Template = GetTemplate(),
+                };
+
+                var other = new Control { Focusable = true };
+
+                StackPanel panel;
+
+                var root = new TestRoot { Child = panel = new StackPanel { Children = { target, other } } };
+
+                target.ApplyTemplate();
+                target.Presenter.ApplyTemplate();
+
+                other.Focus();
+
+                Assert.True(other.IsFocused);
+
+                panel.Children.Remove(target);
+
+                Assert.True(other.IsFocused);
+            }
+        }
     }
 }
diff --git a/tests/Avalonia.Controls.UnitTests/Primitives/PopupTests.cs b/tests/Avalonia.Controls.UnitTests/Primitives/PopupTests.cs
index 7cb9fccee8..1f07482617 100644
--- a/tests/Avalonia.Controls.UnitTests/Primitives/PopupTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/Primitives/PopupTests.cs
@@ -223,7 +223,33 @@ namespace Avalonia.Controls.UnitTests.Primitives
             }
         }
 
-        
+        [Fact]
+        public void Popup_Close_On_Closed_Popup_Should_Not_Raise_Closed_Event()
+        {
+            using (CreateServices())
+            {
+                var window = PreparedWindow();
+                var target = new Popup() { PlacementMode = PlacementMode.Pointer };
+
+                window.Content = target;
+                window.ApplyTemplate();
+                
+                int closedCount = 0;
+
+                target.Closed += (sender, args) =>
+                {
+                    closedCount++;
+                };
+
+                target.Close();
+                target.Close();
+                target.Close();
+                target.Close();
+
+                Assert.Equal(0, closedCount);
+            }
+        }
+
         [Fact]
         public void Templated_Control_With_Popup_In_Template_Should_Set_TemplatedParent()
         {