1 files changed, 52 insertions, 0 deletions
diff --git a/mono/tests/sgen-bridge-xref.cs b/mono/tests/sgen-bridge-xref.cs
new file mode 100644
index 0000000000..82892803ce
--- /dev/null
+++ b/mono/tests/sgen-bridge-xref.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Threading;
+
+public class Bridge {
+	public int __test;
+	public string id;
+	public List<object> link = new List<object> ();
+	
+	~Bridge () {
+	}
+}
+
+class Driver {
+	static WeakReference<Bridge> root, child;
+
+	static void SetupLinks () {
+		var a = new Bridge () { id = "bridge" };
+		var b = new Bridge () { id = "child" };
+		a.link.Add (b);
+		a.__test = 1;
+		b.__test = 0;
+		root = new WeakReference<Bridge> (a, true);
+		child = new WeakReference<Bridge> (b, true);
+	}
+
+	static int Main ()
+	{
+		var t = new Thread (SetupLinks);
+		t.Start ();
+		t.Join ();
+		
+		GC.Collect ();
+		Bridge a, b;
+		a = b = null;
+		Console.WriteLine ("try get A {0}", root.TryGetTarget (out a));
+		Console.WriteLine ("try get B {0}", child.TryGetTarget (out b));
+		Console.WriteLine ("a is null {0}", a == null);
+		Console.WriteLine ("b is null {0}", b == null);
+		if (a == null || b == null)
+			return 1;
+
+		Console.WriteLine ("a test {0}", a.__test);
+		Console.WriteLine ("b test {0}", b.__test);
+
+		if (a.__test != 1 || b.__test != 3)
+			return 2;
+
+		return 0;
+	}
+}
+\ No newline at end of file