Initial checkin of gRPC to third_party/

third_party/grpc/src/csharp/Grpc.IntegrationTesting/HeaderInterceptorTest.cs

Index: third_party/grpc/src/csharp/Grpc.IntegrationTesting/HeaderInterceptorTest.cs
diff --git a/third_party/grpc/src/csharp/Grpc.IntegrationTesting/HeaderInterceptorTest.cs b/third_party/grpc/src/csharp/Grpc.IntegrationTesting/HeaderInterceptorTest.cs
new file mode 100644
index 0000000000000000000000000000000000000000..1d758b75402087b73f91ec5eae4f1573f7168d1e
--- /dev/null
+++ b/third_party/grpc/src/csharp/Grpc.IntegrationTesting/HeaderInterceptorTest.cs
@@ -0,0 +1,113 @@
+#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.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Grpc.Core;
+using Grpc.Core.Utils;
+using Grpc.Testing;
+using NUnit.Framework;
+
+namespace Grpc.IntegrationTesting
+{
+    public class HeaderInterceptorTest
+    {
+        const string Host = "localhost";
+        Server server;
+        Channel channel;
+        TestService.TestServiceClient client;
+
+        [TestFixtureSetUp]
+        public void Init()
+        {
+            server = new Server
+            {
+                Services = { TestService.BindService(new TestServiceImpl()) },
+                Ports = { { Host, ServerPort.PickUnused, ServerCredentials.Insecure } }
+            };
+            server.Start();
+
+            channel = new Channel(Host, server.Ports.Single().BoundPort, ChannelCredentials.Insecure);
+            client = TestService.NewClient(channel);
+        }
+
+        [TestFixtureTearDown]
+        public void Cleanup()
+        {
+            channel.ShutdownAsync().Wait();
+            server.ShutdownAsync().Wait();
+        }
+
+        [Test]
+        public async Task HeaderInterceptor_CreateMetadata()
+        {
+            var key = "x-grpc-test-echo-initial";
+            client.HeaderInterceptor = new HeaderInterceptor((method, metadata) =>
+            {
+                metadata.Add(key, "ABC");
+            });
+
+            var call = client.UnaryCallAsync(new SimpleRequest());
+            await call;
+
+           var responseHeaders = await call.ResponseHeadersAsync;
+           Assert.AreEqual("ABC", responseHeaders.First((entry) => entry.Key == key).Value);
+        }
+
+        [Test]
+        public async Task HeaderInterceptor_AppendMetadata()
+        {
+            var initialKey = "x-grpc-test-echo-initial";
+            var trailingKey = "x-grpc-test-echo-trailing-bin";
+
+            client.HeaderInterceptor = new HeaderInterceptor((method, metadata) =>
+            {
+                metadata.Add(initialKey, "ABC");
+            });
+
+            var headers = new Metadata
+            {
+                { trailingKey, new byte[] {0xaa} }
+            };
+            var call = client.UnaryCallAsync(new SimpleRequest(), headers: headers);
+            await call;
+
+            var responseHeaders = await call.ResponseHeadersAsync;
+            Assert.AreEqual("ABC", responseHeaders.First((entry) => entry.Key == initialKey).Value);
+            CollectionAssert.AreEqual(new byte[] {0xaa}, call.GetTrailers().First((entry) => entry.Key == trailingKey).ValueBytes);
+        }
+    }
+}