| #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.Linq; |
| using System.Threading; |
| using System.Threading.Tasks; |
| using Grpc.Core; |
| using Grpc.Core.Internal; |
| using Grpc.Core.Profiling; |
| using Grpc.Core.Utils; |
| using NUnit.Framework; |
| |
| namespace Grpc.Core.Tests |
| { |
| public class ClientServerTest |
| { |
| const string Host = "127.0.0.1"; |
| |
| MockServiceHelper helper; |
| Server server; |
| Channel channel; |
| |
| [SetUp] |
| public void Init() |
| { |
| helper = new MockServiceHelper(Host); |
| server = helper.GetServer(); |
| server.Start(); |
| channel = helper.GetChannel(); |
| } |
| |
| [TearDown] |
| public void Cleanup() |
| { |
| channel.ShutdownAsync().Wait(); |
| server.ShutdownAsync().Wait(); |
| } |
| |
| [Test] |
| public async Task UnaryCall() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| return request; |
| }); |
| |
| Assert.AreEqual("ABC", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "ABC")); |
| |
| Assert.AreEqual("ABC", await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "ABC")); |
| } |
| |
| [Test] |
| public void UnaryCall_ServerHandlerThrows() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) => |
| { |
| throw new Exception("This was thrown on purpose by a test"); |
| }); |
| |
| var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unknown, ex.Status.StatusCode); |
| |
| var ex2 = Assert.ThrowsAsync<RpcException>(async () => await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unknown, ex2.Status.StatusCode); |
| } |
| |
| [Test] |
| public void UnaryCall_ServerHandlerThrowsRpcException() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) => |
| { |
| throw new RpcException(new Status(StatusCode.Unauthenticated, "")); |
| }); |
| |
| var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unauthenticated, ex.Status.StatusCode); |
| |
| var ex2 = Assert.ThrowsAsync<RpcException>(async () => await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unauthenticated, ex2.Status.StatusCode); |
| } |
| |
| [Test] |
| public void UnaryCall_ServerHandlerSetsStatus() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| context.Status = new Status(StatusCode.Unauthenticated, ""); |
| return ""; |
| }); |
| |
| var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unauthenticated, ex.Status.StatusCode); |
| |
| var ex2 = Assert.ThrowsAsync<RpcException>(async () => await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unauthenticated, ex2.Status.StatusCode); |
| } |
| |
| [Test] |
| public async Task ClientStreamingCall() |
| { |
| helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>(async (requestStream, context) => |
| { |
| string result = ""; |
| await requestStream.ForEachAsync(async (request) => |
| { |
| result += request; |
| }); |
| await Task.Delay(100); |
| return result; |
| }); |
| |
| var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall()); |
| await call.RequestStream.WriteAllAsync(new string[] { "A", "B", "C" }); |
| Assert.AreEqual("ABC", await call.ResponseAsync); |
| |
| Assert.AreEqual(StatusCode.OK, call.GetStatus().StatusCode); |
| Assert.IsNotNull(call.GetTrailers()); |
| } |
| |
| [Test] |
| public async Task ServerStreamingCall() |
| { |
| helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) => |
| { |
| await responseStream.WriteAllAsync(request.Split(new []{' '})); |
| context.ResponseTrailers.Add("xyz", ""); |
| }); |
| |
| var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), "A B C"); |
| CollectionAssert.AreEqual(new string[] { "A", "B", "C" }, await call.ResponseStream.ToListAsync()); |
| |
| Assert.AreEqual(StatusCode.OK, call.GetStatus().StatusCode); |
| Assert.IsNotNull("xyz", call.GetTrailers()[0].Key); |
| } |
| |
| [Test] |
| public async Task ServerStreamingCall_EndOfStreamIsIdempotent() |
| { |
| helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) => |
| { |
| }); |
| |
| var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), ""); |
| |
| Assert.IsFalse(await call.ResponseStream.MoveNext()); |
| Assert.IsFalse(await call.ResponseStream.MoveNext()); |
| } |
| |
| [Test] |
| public async Task ServerStreamingCall_ErrorCanBeAwaitedTwice() |
| { |
| helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) => |
| { |
| context.Status = new Status(StatusCode.InvalidArgument, ""); |
| }); |
| |
| var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), ""); |
| |
| var ex = Assert.ThrowsAsync<RpcException>(async () => await call.ResponseStream.MoveNext()); |
| Assert.AreEqual(StatusCode.InvalidArgument, ex.Status.StatusCode); |
| |
| // attempting MoveNext again should result in throwing the same exception. |
| var ex2 = Assert.ThrowsAsync<RpcException>(async () => await call.ResponseStream.MoveNext()); |
| Assert.AreEqual(StatusCode.InvalidArgument, ex2.Status.StatusCode); |
| } |
| |
| [Test] |
| public async Task DuplexStreamingCall() |
| { |
| helper.DuplexStreamingHandler = new DuplexStreamingServerMethod<string, string>(async (requestStream, responseStream, context) => |
| { |
| while (await requestStream.MoveNext()) |
| { |
| await responseStream.WriteAsync(requestStream.Current); |
| } |
| context.ResponseTrailers.Add("xyz", "xyz-value"); |
| }); |
| |
| var call = Calls.AsyncDuplexStreamingCall(helper.CreateDuplexStreamingCall()); |
| await call.RequestStream.WriteAllAsync(new string[] { "A", "B", "C" }); |
| CollectionAssert.AreEqual(new string[] { "A", "B", "C" }, await call.ResponseStream.ToListAsync()); |
| |
| Assert.AreEqual(StatusCode.OK, call.GetStatus().StatusCode); |
| Assert.IsNotNull("xyz-value", call.GetTrailers()[0].Value); |
| } |
| |
| [Test] |
| public async Task ClientStreamingCall_CancelAfterBegin() |
| { |
| var barrier = new TaskCompletionSource<object>(); |
| |
| helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>(async (requestStream, context) => |
| { |
| barrier.SetResult(null); |
| await requestStream.ToListAsync(); |
| return ""; |
| }); |
| |
| var cts = new CancellationTokenSource(); |
| var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall(new CallOptions(cancellationToken: cts.Token))); |
| |
| await barrier.Task; // make sure the handler has started. |
| cts.Cancel(); |
| |
| try |
| { |
| // cannot use Assert.ThrowsAsync because it uses Task.Wait and would deadlock. |
| await call.ResponseAsync; |
| Assert.Fail(); |
| } |
| catch (RpcException ex) |
| { |
| Assert.AreEqual(StatusCode.Cancelled, ex.Status.StatusCode); |
| } |
| } |
| |
| [Test] |
| public async Task ClientStreamingCall_ServerSideReadAfterCancelNotificationReturnsNull() |
| { |
| var handlerStartedBarrier = new TaskCompletionSource<object>(); |
| var cancelNotificationReceivedBarrier = new TaskCompletionSource<object>(); |
| var successTcs = new TaskCompletionSource<string>(); |
| |
| helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>(async (requestStream, context) => |
| { |
| handlerStartedBarrier.SetResult(null); |
| |
| // wait for cancellation to be delivered. |
| context.CancellationToken.Register(() => cancelNotificationReceivedBarrier.SetResult(null)); |
| await cancelNotificationReceivedBarrier.Task; |
| |
| var moveNextResult = await requestStream.MoveNext(); |
| successTcs.SetResult(!moveNextResult ? "SUCCESS" : "FAIL"); |
| return ""; |
| }); |
| |
| var cts = new CancellationTokenSource(); |
| var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall(new CallOptions(cancellationToken: cts.Token))); |
| |
| await handlerStartedBarrier.Task; |
| cts.Cancel(); |
| |
| try |
| { |
| await call.ResponseAsync; |
| Assert.Fail(); |
| } |
| catch (RpcException ex) |
| { |
| Assert.AreEqual(StatusCode.Cancelled, ex.Status.StatusCode); |
| } |
| Assert.AreEqual("SUCCESS", await successTcs.Task); |
| } |
| |
| [Test] |
| public async Task AsyncUnaryCall_EchoMetadata() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| foreach (Metadata.Entry metadataEntry in context.RequestHeaders) |
| { |
| if (metadataEntry.Key != "user-agent") |
| { |
| context.ResponseTrailers.Add(metadataEntry); |
| } |
| } |
| return ""; |
| }); |
| |
| var headers = new Metadata |
| { |
| { "ascii-header", "abcdefg" }, |
| { "binary-header-bin", new byte[] { 1, 2, 3, 0, 0xff } } |
| }; |
| var call = Calls.AsyncUnaryCall(helper.CreateUnaryCall(new CallOptions(headers: headers)), "ABC"); |
| await call; |
| |
| Assert.AreEqual(StatusCode.OK, call.GetStatus().StatusCode); |
| |
| var trailers = call.GetTrailers(); |
| Assert.AreEqual(2, trailers.Count); |
| Assert.AreEqual(headers[0].Key, trailers[0].Key); |
| Assert.AreEqual(headers[0].Value, trailers[0].Value); |
| |
| Assert.AreEqual(headers[1].Key, trailers[1].Key); |
| CollectionAssert.AreEqual(headers[1].ValueBytes, trailers[1].ValueBytes); |
| } |
| |
| [Test] |
| public void UnknownMethodHandler() |
| { |
| var nonexistentMethod = new Method<string, string>( |
| MethodType.Unary, |
| MockServiceHelper.ServiceName, |
| "NonExistentMethod", |
| Marshallers.StringMarshaller, |
| Marshallers.StringMarshaller); |
| |
| var callDetails = new CallInvocationDetails<string, string>(channel, nonexistentMethod, new CallOptions()); |
| |
| var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(callDetails, "abc")); |
| Assert.AreEqual(StatusCode.Unimplemented, ex.Status.StatusCode); |
| } |
| |
| [Test] |
| public void StatusDetailIsUtf8() |
| { |
| // some japanese and chinese characters |
| var nonAsciiString = "\u30a1\u30a2\u30a3 \u62b5\u6297\u662f\u5f92\u52b3\u7684"; |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| context.Status = new Status(StatusCode.Unknown, nonAsciiString); |
| return ""; |
| }); |
| |
| var ex = Assert.Throws<RpcException>(() => Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc")); |
| Assert.AreEqual(StatusCode.Unknown, ex.Status.StatusCode); |
| Assert.AreEqual(nonAsciiString, ex.Status.Detail); |
| } |
| |
| [Test] |
| public void ServerCallContext_PeerInfoPresent() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| return context.Peer; |
| }); |
| |
| string peer = Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc"); |
| Assert.IsTrue(peer.Contains(Host)); |
| } |
| |
| [Test] |
| public void ServerCallContext_HostAndMethodPresent() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| Assert.IsTrue(context.Host.Contains(Host)); |
| Assert.AreEqual("/tests.Test/Unary", context.Method); |
| return "PASS"; |
| }); |
| Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "abc")); |
| } |
| |
| [Test] |
| public async Task Channel_WaitForStateChangedAsync() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| return request; |
| }); |
| |
| Assert.ThrowsAsync(typeof(TaskCanceledException), |
| async () => await channel.WaitForStateChangedAsync(channel.State, DateTime.UtcNow.AddMilliseconds(10))); |
| |
| var stateChangedTask = channel.WaitForStateChangedAsync(channel.State); |
| |
| await Calls.AsyncUnaryCall(helper.CreateUnaryCall(), "abc"); |
| |
| await stateChangedTask; |
| Assert.AreEqual(ChannelState.Ready, channel.State); |
| } |
| |
| [Test] |
| public async Task Channel_ConnectAsync() |
| { |
| await channel.ConnectAsync(); |
| Assert.AreEqual(ChannelState.Ready, channel.State); |
| |
| await channel.ConnectAsync(DateTime.UtcNow.AddMilliseconds(1000)); |
| Assert.AreEqual(ChannelState.Ready, channel.State); |
| } |
| } |
| } |