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#region Copyright notice and license
// Copyright 2016 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#endregion
using System;
using System.Collections.Generic;
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 HalfcloseTest
{
MockServiceHelper helper;
Server server;
Channel channel;
[SetUp]
public void Init()
{
helper = new MockServiceHelper();
server = helper.GetServer();
server.Start();
channel = helper.GetChannel();
}
[TearDown]
public void Cleanup()
{
channel.ShutdownAsync().Wait();
server.ShutdownAsync().Wait();
}
/// <summary>
/// For client streaming and duplex streaming calls, if server does a full close
/// before we halfclose the request stream, an attempt to halfclose
/// (complete the request stream) shouldn't be treated as an error.
/// </summary>
[Test]
public async Task HalfcloseAfterFullclose_ClientStreamingCall()
{
helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>((requestStream, context) =>
{
return Task.FromResult("PASS");
});
var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall());
// make sure server has fullclosed on us
Assert.AreEqual("PASS", await call.ResponseAsync);
// sending close from client should be still fine because server can finish
// the call anytime and we cannot do anything about it on the client side.
await call.RequestStream.CompleteAsync();
// Second attempt to close from client is not allowed.
Assert.ThrowsAsync(typeof(InvalidOperationException), async () => await call.RequestStream.CompleteAsync());
}
}
}
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