| #region Copyright notice and license |
| |
| // Copyright 2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #endregion |
| |
| using System; |
| using System.Collections.Generic; |
| using System.Runtime.InteropServices; |
| using System.Threading.Tasks; |
| |
| using Grpc.Core.Internal; |
| using NUnit.Framework; |
| |
| namespace Grpc.Core.Internal.Tests |
| { |
| /// <summary> |
| /// Uses fake native call to test interaction of <c>AsyncCallServer</c> wrapping code with C core in different situations. |
| /// </summary> |
| public class AsyncCallServerTest |
| { |
| Server server; |
| FakeNativeCall fakeCall; |
| AsyncCallServer<string, string> asyncCallServer; |
| |
| [SetUp] |
| public void Init() |
| { |
| var environment = GrpcEnvironment.AddRef(); |
| |
| // Create a fake server just so we have an instance to refer to. |
| // The server won't actually be used at all. |
| server = new Server() |
| { |
| Ports = { { "localhost", 0, ServerCredentials.Insecure } } |
| }; |
| server.Start(); |
| |
| fakeCall = new FakeNativeCall(); |
| asyncCallServer = new AsyncCallServer<string, string>( |
| Marshallers.StringMarshaller.Serializer, Marshallers.StringMarshaller.Deserializer, |
| environment, |
| server); |
| asyncCallServer.InitializeForTesting(fakeCall); |
| } |
| |
| [TearDown] |
| public void Cleanup() |
| { |
| server.ShutdownAsync().Wait(); |
| GrpcEnvironment.Release(); |
| } |
| |
| [Test] |
| public void CancelNotificationAfterStartDisposes() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void CancelNotificationAfterStartDisposesAfterPendingReadFinishes() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var requestStream = new ServerRequestStream<string, string>(asyncCallServer); |
| |
| var moveNextTask = requestStream.MoveNext(); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| fakeCall.ReceivedMessageHandler(true, null); |
| Assert.IsFalse(moveNextTask.Result); |
| |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void ReadAfterCancelNotificationCanSucceed() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var requestStream = new ServerRequestStream<string, string>(asyncCallServer); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| |
| // Check that starting a read after cancel notification has been processed is legal. |
| var moveNextTask = requestStream.MoveNext(); |
| Assert.IsFalse(moveNextTask.Result); |
| |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void ReadCompletionFailureClosesRequestStream() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var requestStream = new ServerRequestStream<string, string>(asyncCallServer); |
| |
| // if a read completion's success==false, the request stream will silently finish |
| // and we rely on C core cancelling the call. |
| var moveNextTask = requestStream.MoveNext(); |
| fakeCall.ReceivedMessageHandler(false, null); |
| Assert.IsFalse(moveNextTask.Result); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void WriteAfterCancelNotificationFails() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var requestStream = new ServerRequestStream<string, string>(asyncCallServer); |
| var responseStream = new ServerResponseStream<string, string>(asyncCallServer); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| |
| // TODO(jtattermusch): should we throw a different exception type instead? |
| Assert.Throws(typeof(InvalidOperationException), () => responseStream.WriteAsync("request1")); |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void WriteCompletionFailureThrows() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var responseStream = new ServerResponseStream<string, string>(asyncCallServer); |
| |
| var writeTask = responseStream.WriteAsync("request1"); |
| fakeCall.SendCompletionHandler(false); |
| // TODO(jtattermusch): should we throw a different exception type instead? |
| Assert.ThrowsAsync(typeof(InvalidOperationException), async () => await writeTask); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| [Test] |
| public void WriteAndWriteStatusCanRunConcurrently() |
| { |
| var finishedTask = asyncCallServer.ServerSideCallAsync(); |
| var responseStream = new ServerResponseStream<string, string>(asyncCallServer); |
| |
| var writeTask = responseStream.WriteAsync("request1"); |
| var writeStatusTask = asyncCallServer.SendStatusFromServerAsync(Status.DefaultSuccess, new Metadata(), null); |
| |
| fakeCall.SendCompletionHandler(true); |
| fakeCall.SendStatusFromServerHandler(true); |
| |
| Assert.DoesNotThrowAsync(async () => await writeTask); |
| Assert.DoesNotThrowAsync(async () => await writeStatusTask); |
| |
| fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); |
| |
| AssertFinished(asyncCallServer, fakeCall, finishedTask); |
| } |
| |
| static void AssertFinished(AsyncCallServer<string, string> asyncCallServer, FakeNativeCall fakeCall, Task finishedTask) |
| { |
| Assert.IsTrue(fakeCall.IsDisposed); |
| Assert.IsTrue(finishedTask.IsCompleted); |
| Assert.DoesNotThrow(() => finishedTask.Wait()); |
| } |
| } |
| } |