| #region Copyright notice and license |
| |
| // Copyright 2015 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 |
| { |
| /// <summary> |
| /// Tests for response headers support. |
| /// </summary> |
| public class ResponseHeadersTest |
| { |
| MockServiceHelper helper; |
| Server server; |
| Channel channel; |
| |
| Metadata headers; |
| |
| [SetUp] |
| public void Init() |
| { |
| helper = new MockServiceHelper(); |
| |
| server = helper.GetServer(); |
| server.Start(); |
| channel = helper.GetChannel(); |
| |
| headers = new Metadata { { "ascii-header", "abcdefg" } }; |
| } |
| |
| [TearDown] |
| public void Cleanup() |
| { |
| channel.ShutdownAsync().Wait(); |
| server.ShutdownAsync().Wait(); |
| } |
| |
| [Test] |
| public async Task ResponseHeadersAsync_UnaryCall() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| return "PASS"; |
| }); |
| |
| var call = Calls.AsyncUnaryCall(helper.CreateUnaryCall(), ""); |
| var responseHeaders = await call.ResponseHeadersAsync; |
| |
| Assert.AreEqual(headers.Count, responseHeaders.Count); |
| Assert.AreEqual("ascii-header", responseHeaders[0].Key); |
| Assert.AreEqual("abcdefg", responseHeaders[0].Value); |
| |
| Assert.AreEqual("PASS", await call.ResponseAsync); |
| } |
| |
| [Test] |
| public async Task ResponseHeadersAsync_ClientStreamingCall() |
| { |
| helper.ClientStreamingHandler = new ClientStreamingServerMethod<string, string>(async (requestStream, context) => |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| return "PASS"; |
| }); |
| |
| var call = Calls.AsyncClientStreamingCall(helper.CreateClientStreamingCall()); |
| await call.RequestStream.CompleteAsync(); |
| var responseHeaders = await call.ResponseHeadersAsync; |
| |
| Assert.AreEqual("ascii-header", responseHeaders[0].Key); |
| Assert.AreEqual("PASS", await call.ResponseAsync); |
| } |
| |
| [Test] |
| public async Task ResponseHeadersAsync_ServerStreamingCall() |
| { |
| helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) => |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| await responseStream.WriteAsync("PASS"); |
| }); |
| |
| var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), ""); |
| var responseHeaders = await call.ResponseHeadersAsync; |
| |
| Assert.AreEqual("ascii-header", responseHeaders[0].Key); |
| CollectionAssert.AreEqual(new[] { "PASS" }, await call.ResponseStream.ToListAsync()); |
| } |
| |
| [Test] |
| public async Task ResponseHeadersAsync_DuplexStreamingCall() |
| { |
| helper.DuplexStreamingHandler = new DuplexStreamingServerMethod<string, string>(async (requestStream, responseStream, context) => |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| while (await requestStream.MoveNext()) |
| { |
| await responseStream.WriteAsync(requestStream.Current); |
| } |
| }); |
| |
| var call = Calls.AsyncDuplexStreamingCall(helper.CreateDuplexStreamingCall()); |
| var responseHeaders = await call.ResponseHeadersAsync; |
| |
| var messages = new[] { "PASS" }; |
| await call.RequestStream.WriteAllAsync(messages); |
| |
| Assert.AreEqual("ascii-header", responseHeaders[0].Key); |
| CollectionAssert.AreEqual(messages, await call.ResponseStream.ToListAsync()); |
| } |
| |
| [Test] |
| public void WriteResponseHeaders_NullNotAllowed() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) => |
| { |
| Assert.ThrowsAsync(typeof(ArgumentNullException), async () => await context.WriteResponseHeadersAsync(null)); |
| return Task.FromResult("PASS"); |
| }); |
| |
| Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "")); |
| } |
| |
| [Test] |
| public void WriteResponseHeaders_AllowedOnlyOnce() |
| { |
| helper.UnaryHandler = new UnaryServerMethod<string, string>(async (request, context) => |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| try |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| Assert.Fail(); |
| } |
| catch (InvalidOperationException) |
| { |
| } |
| return "PASS"; |
| }); |
| |
| Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), "")); |
| } |
| |
| [Test] |
| public async Task WriteResponseHeaders_NotAllowedAfterWrite() |
| { |
| helper.ServerStreamingHandler = new ServerStreamingServerMethod<string, string>(async (request, responseStream, context) => |
| { |
| await responseStream.WriteAsync("A"); |
| try |
| { |
| await context.WriteResponseHeadersAsync(headers); |
| Assert.Fail(); |
| } |
| catch (InvalidOperationException) |
| { |
| } |
| await responseStream.WriteAsync("B"); |
| }); |
| |
| var call = Calls.AsyncServerStreamingCall(helper.CreateServerStreamingCall(), ""); |
| var responses = await call.ResponseStream.ToListAsync(); |
| CollectionAssert.AreEqual(new[] { "A", "B" }, responses); |
| } |
| } |
| } |