1 files changed, 42 insertions, 0 deletions
diff --git a/tests/src/GC/API/GC/ReRegisterForFinalize_null.cs b/tests/src/GC/API/GC/ReRegisterForFinalize_null.cs
new file mode 100644
index 0000000000..06f4e08dfe
--- /dev/null
+++ b/tests/src/GC/API/GC/ReRegisterForFinalize_null.cs
@@ -0,0 +1,42 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+// Tests ReRegisterForFinalize()
+
+using System;
+
+public class Test
+{
+    public bool RunTest()
+    {
+        try
+        {
+            GC.ReRegisterForFinalize(null); // should call Finalize() for obj1 now.
+        }
+        catch (ArgumentNullException)
+        {
+            return true;
+        }
+        catch (Exception)
+        {
+            Console.WriteLine("Unexpected Exception!");
+        }
+
+        return false;
+    }
+
+
+    public static int Main()
+    {
+        Test t = new Test();
+        if (t.RunTest())
+        {
+            Console.WriteLine("Null Test for ReRegisterForFinalize() passed!");
+            return 100;
+        }
+
+        Console.WriteLine("Null Test for ReRegisterForFinalize() failed!");
+        return 1;
+    }
+}