Imported Upstream version 5.14.0.78

Former-commit-id: 3494343bcc9ddb42b36b82dd9ae7b69e85e0229f

mcs/class/corlib/Test/System.Runtime.Remoting/RemotingServicesTest.cs

@@ -0,0 +1,60 @@
+//
+// MonoTests.System.Runtime.Remoting.RemotingServicesTest.cs
+//
+// Author: Alexis Christoforides (alchri@microsoft.com)
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+using System.Reflection;
+using System.Threading.Tasks;
+using NUnit.Framework;
+
+namespace MonoTests.System.Runtime.Remoting
+{
+	[TestFixture]
+	public class RemotingServicesTest
+	{
+		public class AppDomainObject : MarshalByRefObject
+		{
+			public void Init(CrossDomainSerializedObject applicationDependencies) // racy exception here
+			{
+
+			}
+		}
+
+		public class CrossDomainSerializedObject : MarshalByRefObject
+		{
+		}
+		private static CrossDomainSerializedObject crossDomainSerializedObject;
+
+		private static void AppDomainWithRemotingSerialization(Assembly assembly, string name)
+		{
+				var appDomain = AppDomain.CreateDomain(name);
+				var appDomainObject = (AppDomainObject)appDomain.CreateInstanceAndUnwrap(assembly.GetName().Name, typeof(AppDomainObject).FullName);
+				appDomainObject.Init(crossDomainSerializedObject);
+		}
+
+		[Test]
+		public void Bug46473 () // concurrent serialization/deserialization
+		{
+			bool success = true;
+			crossDomainSerializedObject = new CrossDomainSerializedObject();
+			Task[] tasks = new Task [20];
+			for (int i = 0; i < tasks.Length; i++)
+			{
+				var assembly = Assembly.GetAssembly(typeof(AppDomainObject));
+				var name = "AppDomainWithCall" + i;
+				tasks [i] = Task.Factory.StartNew(() => AppDomainWithRemotingSerialization(assembly, name));
+			}
+			try {
+				Task.WaitAll (tasks);
+			} catch (AggregateException e) {
+				success = false;
+				Console.WriteLine ($"{e}, {e.InnerException}");
+			}
+			Assert.IsTrue (success, "Bug46473 (exception during remoting call)");
+		}
+	}
+}