Initial checkin of gRPC to third_party/

third_party/grpc/src/csharp/Grpc.Core.Tests/UserAgentStringTest.cs

Index: third_party/grpc/src/csharp/Grpc.Core.Tests/UserAgentStringTest.cs
diff --git a/third_party/grpc/src/csharp/Grpc.Core.Tests/UserAgentStringTest.cs b/third_party/grpc/src/csharp/Grpc.Core.Tests/UserAgentStringTest.cs
new file mode 100644
index 0000000000000000000000000000000000000000..cc830086a67d3b7f4444262fe03bf0dbbc1154a0
--- /dev/null
+++ b/third_party/grpc/src/csharp/Grpc.Core.Tests/UserAgentStringTest.cs
@@ -0,0 +1,101 @@
+#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.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 UserAgentStringTest
+    {
+        const string Host = "127.0.0.1";
+
+        MockServiceHelper helper;
+        Server server;
+        Channel channel;
+
+        [TearDown]
+        public void Cleanup()
+        {
+            channel.ShutdownAsync().Wait();
+            server.ShutdownAsync().Wait();
+        }
+
+        [Test]
+        public void DefaultUserAgentString()
+        {
+            helper = new MockServiceHelper(Host);
+            server = helper.GetServer();
+            server.Start();
+            channel = helper.GetChannel();
+
+            helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) =>
+            {
+                var userAgentString = context.RequestHeaders.First(m => (m.Key == "user-agent")).Value;
+                var parts = userAgentString.Split(new [] {' '}, 2);
+                Assert.AreEqual(string.Format("grpc-csharp/{0}", VersionInfo.CurrentVersion), parts[0]);
+                Assert.IsTrue(parts[1].StartsWith("grpc-c/"));
+                return Task.FromResult("PASS");
+            });
+            Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), ""));
+        }
+
+        [Test]
+        public void ApplicationUserAgentString()
+        {
+            helper = new MockServiceHelper(Host,
+                channelOptions: new[] { new ChannelOption(ChannelOptions.PrimaryUserAgentString, "XYZ") });
+            server = helper.GetServer();
+            server.Start();
+            channel = helper.GetChannel();
+            
+            channel = helper.GetChannel();
+            helper.UnaryHandler = new UnaryServerMethod<string, string>((request, context) =>
+            {
+                var userAgentString = context.RequestHeaders.First(m => (m.Key == "user-agent")).Value;
+                var parts = userAgentString.Split(new[] { ' ' }, 3);
+                Assert.AreEqual("XYZ", parts[0]);
+                return Task.FromResult("PASS");
+            });
+            Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), ""));
+        }
+    }
+}