From 248f059e6f1b6a4008152b401c92728acac0aea2 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Wed, 23 Mar 2016 18:03:40 +0100
Subject: [PATCH] Added failing TreeViewItem test.

Binding returned from TreeDataTemplate is getting collected.
---
 tests/Perspex.Controls.UnitTests/TreeViewTests.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/Perspex.Controls.UnitTests/TreeViewTests.cs b/tests/Perspex.Controls.UnitTests/TreeViewTests.cs
index 993449a295..d4e44a44b3 100644
--- a/tests/Perspex.Controls.UnitTests/TreeViewTests.cs
+++ b/tests/Perspex.Controls.UnitTests/TreeViewTests.cs
@@ -273,6 +273,9 @@ namespace Perspex.Controls.UnitTests
             Assert.Equal(new[] { "Child1", "Child2" }, ExtractItemHeader(target, 1));
             Assert.Equal(new[] { "Grandchild2a" }, ExtractItemHeader(target, 2));
 
+            // Make sure that the binding to Node.Children does not get collected.
+            GC.Collect();
+
             data[0].Children = new PerspexList<Node>
             {
                 new Node