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#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<string>(
(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<string, string>((request, context) =>
{
return Task.FromResult("UNPARSEABLE_VALUE");
});
var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "REQUEST"));
Assert.AreEqual(StatusCode.Internal, ex.Status.StatusCode);
}
[Test]
public void ResponseParsingError_StreamingResponse()
{
helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) =>
{
await responseStream.WriteAsync("UNPARSEABLE_VALUE");
await Task.Delay(10000);
});
var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), "REQUEST");
var ex = Assert.ThrowsAsync<RpcException>(async () => await call.ResponseStream.MoveNext());
Assert.AreEqual(StatusCode.Internal, ex.Status.StatusCode);
}
[Test]
public void RequestParsingError_UnaryRequest()
{
helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) =>
{
return Task.FromResult("RESPONSE");
});
var ex = Assert.Throws<RpcException>(() => 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<string, string>(async (requestStream, context) =>
{
Assert.ThrowsAsync<IOException>(async () => await requestStream.MoveNext());
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<IOException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "UNSERIALIZABLE_VALUE"));
}
[Test]
public void RequestSerializationError_AsyncUnary()
{
Assert.ThrowsAsync<IOException>(async () => await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "UNSERIALIZABLE_VALUE"));
}
[Test]
public async Task RequestSerializationError_ClientStreaming()
{
helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>(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<IOException>(async () => await call.RequestStream.WriteAsync("UNSERIALIZABLE_VALUE"));
await call.RequestStream.WriteAsync("B");
await call.RequestStream.CompleteAsync();
Assert.AreEqual("RESPONSE", await call);
}
}
}
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