1 files changed, 49 insertions, 0 deletions
diff --git a/tests/src/baseservices/regression/v1/threads/functional/threadpool/cs_threadpoolnullchecks/cs_threadpoolnullchecks.cs b/tests/src/baseservices/regression/v1/threads/functional/threadpool/cs_threadpoolnullchecks/cs_threadpoolnullchecks.cs
new file mode 100644
index 0000000000..ccb56485db
--- /dev/null
+++ b/tests/src/baseservices/regression/v1/threads/functional/threadpool/cs_threadpoolnullchecks/cs_threadpoolnullchecks.cs
@@ -0,0 +1,49 @@
+// 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.
+using System;
+using System.Security;
+using System.Threading;
+
+#if WINCORESYS
+[assembly:AllowPartiallyTrustedCallers]
+#endif
+
+public class CS_ThreadPoolNullChecks {
+	public static void EventSig(Object state, bool wasSignalled) {
+		Console.WriteLine("In EventSig: {0}.", Thread.CurrentThread.GetHashCode());
+		Console.WriteLine("wasSignalled: " + wasSignalled);
+	}
+	public static int Main(String [] args) {
+		Console.WriteLine("CS_ThreadPoolNullChecks ...");
+		int					ret	= 100;
+		ManualResetEvent	j	= new ManualResetEvent(false);
+		try {
+			ThreadPool.RegisterWaitForSingleObject(null,new WaitOrTimerCallback(EventSig),null,20,false);
+			ret = 0;	//	Fail
+		}
+		catch (ArgumentNullException) {
+		}
+		try {
+			ThreadPool.RegisterWaitForSingleObject(null,null,null,20,false);
+			ret = 0;	//	Fail
+		}
+		catch (ArgumentNullException) {
+		}
+		try {
+			ThreadPool.RegisterWaitForSingleObject(j,null,null,20,false);
+			ret = 0;	//	Fail
+		}
+		catch (ArgumentNullException) {
+		}
+		try {
+			ThreadPool.QueueUserWorkItem(null);
+			Console.WriteLine("ThreadPool.QueueUserWorkItem(null) should have thrown an Exception!");
+			ret = 0;	//	Fail
+		}
+		catch (ArgumentNullException) {
+		}
+		Console.WriteLine(" ... CS_ThreadPoolNullChecks   (ret == {0})",ret);
+		return ret;
+	}
+}
+\ No newline at end of file