#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.Diagnostics; using System.IO; 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 MarshallingErrorsTest { const string Host = "127.0.0.1"; MockServiceHelper helper; Server server; Channel channel; [SetUp] public void Init() { var marshaller = new Marshaller( (str) => { if (str == "UNSERIALIZABLE_VALUE") { // Google.Protobuf throws exception inherited from IOException throw new IOException("Error serializing the message."); } return System.Text.Encoding.UTF8.GetBytes(str); }, (payload) => { var s = System.Text.Encoding.UTF8.GetString(payload); if (s == "UNPARSEABLE_VALUE") { // Google.Protobuf throws exception inherited from IOException throw new IOException("Error parsing the message."); } return s; }); helper = new MockServiceHelper(Host, marshaller); server = helper.GetServer(); server.Start(); channel = helper.GetChannel(); } [TearDown] public void Cleanup() { channel.ShutdownAsync().Wait(); server.ShutdownAsync().Wait(); } [Test] public void ResponseParsingError_UnaryResponse() { helper.UnaryHandler = new UnaryServerMethod((request, context) => { return Task.FromResult("UNPARSEABLE_VALUE"); }); var ex = Assert.Throws(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "REQUEST")); Assert.AreEqual(StatusCode.Internal, ex.Status.StatusCode); } [Test] public void ResponseParsingError_StreamingResponse() { helper.ServerStreamingHandler = new ServerStreamingServerMethod(async (request, responseStream, context) => { await responseStream.WriteAsync("UNPARSEABLE_VALUE"); await Task.Delay(10000); }); var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), "REQUEST"); var ex = Assert.ThrowsAsync(async () => await call.ResponseStream.MoveNext()); Assert.AreEqual(StatusCode.Internal, ex.Status.StatusCode); } [Test] public void RequestParsingError_UnaryRequest() { helper.UnaryHandler = new UnaryServerMethod((request, context) => { return Task.FromResult("RESPONSE"); }); var ex = Assert.Throws(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "UNPARSEABLE_VALUE")); // Spec doesn't define the behavior. With the current implementation server handler throws exception which results in StatusCode.Unknown. Assert.AreEqual(StatusCode.Unknown, ex.Status.StatusCode); } [Test] public async Task RequestParsingError_StreamingRequest() { helper.ClientStreamingHandler = new ClientStreamingServerMethod(async (requestStream, context) => { try { // cannot use Assert.ThrowsAsync because it uses Task.Wait and would deadlock. await requestStream.MoveNext(); Assert.Fail(); } catch (IOException) { } return "RESPONSE"; }); var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall()); await call.RequestStream.WriteAsync("UNPARSEABLE_VALUE"); Assert.AreEqual("RESPONSE", await call); } [Test] public void RequestSerializationError_BlockingUnary() { Assert.Throws(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "UNSERIALIZABLE_VALUE")); } [Test] public void RequestSerializationError_AsyncUnary() { Assert.ThrowsAsync(async () => await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "UNSERIALIZABLE_VALUE")); } [Test] public async Task RequestSerializationError_ClientStreaming() { helper.ClientStreamingHandler = new ClientStreamingServerMethod(async (requestStream, context) => { CollectionAssert.AreEqual(new[] { "A", "B" }, await requestStream.ToListAsync()); return "RESPONSE"; }); var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall()); await call.RequestStream.WriteAsync("A"); Assert.ThrowsAsync(async () => await call.RequestStream.WriteAsync("UNSERIALIZABLE_VALUE")); await call.RequestStream.WriteAsync("B"); await call.RequestStream.CompleteAsync(); Assert.AreEqual("RESPONSE", await call); } } }