grpc/src/csharp/Grpc.Core.Tests/ShutdownHookPendingCallTest.cs

#region Copyright notice and license

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#endregion

using System;
using System.Diagnostics;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Grpc.Core;
using Grpc.Core.Internal;
using Grpc.Core.Utils;
using NUnit.Framework;

namespace Grpc.Core.Tests
{
    public class ShutdownHookPendingCallTest
    {
        const string Host = "127.0.0.1";

        [Test]
        public void ProcessExitHookCanCleanupAbandonedCall()
        {
            var helper = new MockServiceHelper(Host);
            var server = helper.GetServer();
            server.Start();
            var channel = helper.GetChannel();

            var readyToShutdown = new TaskCompletionSource<object>();
            helper.DuplexStreamingHandler = new DuplexStreamingServerMethod<string, string>(async (requestStream, responseStream, context) =>
            {
                readyToShutdown.SetResult(null);
                await requestStream.ToListAsync();
            });

            var call = Calls.AsyncDuplexStreamingCall(helper.CreateDuplexStreamingCall());
            readyToShutdown.Task.Wait();  // make sure handler is running
        }
    }
}