From 97cb3a68f04911c56aade74d25b38bd0ac9088c1 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Thu, 2 Jun 2022 14:40:25 +0100
Subject: [PATCH] Add unit test.

---
 .../FlyoutTests.cs                            | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/Avalonia.Controls.UnitTests/FlyoutTests.cs b/tests/Avalonia.Controls.UnitTests/FlyoutTests.cs
index 8b77074960..776b4508c2 100644
--- a/tests/Avalonia.Controls.UnitTests/FlyoutTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/FlyoutTests.cs
@@ -451,6 +451,28 @@ namespace Avalonia.Controls.UnitTests
                 Assert.Null(popup.Parent);
             }
         }
+        
+        [Fact]
+        public void Should_Reset_Popup_Parent_On_Target_Attach_Following_Detach()
+        {
+            using (CreateServicesWithFocus())
+            {
+                var userControl = new UserControl();
+                var window = PreparedWindow(userControl);
+                window.Show();
+                
+                var flyout = new TestFlyout();
+                flyout.ShowAt(userControl);
+                
+                var popup = Assert.IsType<Popup>(flyout.Popup);
+                Assert.NotNull(popup.Parent);
+                
+                flyout.Hide();
+                
+                flyout.ShowAt(userControl);
+                Assert.NotNull(popup.Parent);
+            }
+        }
 
         [Fact]
         public void ContextFlyout_Can_Be_Set_In_Styles()