1 files changed, 52 insertions, 0 deletions
diff --git a/src/csharp/GrpcCoreTests/ClientServerTest.cs b/src/csharp/GrpcCoreTests/ClientServerTest.cs
new file mode 100644
index 0000000000..c700ffbe7b
--- /dev/null
+++ b/src/csharp/GrpcCoreTests/ClientServerTest.cs
@@ -0,0 +1,52 @@
+using System;
+using NUnit.Framework;
+using Google.GRPC.Core;
+using Google.GRPC.Core.Internal;
+using System.Threading;
+using System.Threading.Tasks;
+using Google.GRPC.Core.Utils;
+
+namespace Google.GRPC.Core.Tests
+{
+    public class ClientServerTest
+    {
+        string serverAddr = "localhost:" + PortPicker.PickUnusedPort();
+
+        Method<string, string> unaryEchoStringMethod = new Method<string, string>(
+            MethodType.Unary,
+            "/tests.Test/UnaryEchoString",
+            Marshallers.StringMarshaller,
+            Marshallers.StringMarshaller);
+
+        [Test]
+        public void EmptyCall()
+        {
+            Server server = new Server();
+            server.AddServiceDefinition(
+                ServerServiceDefinition.CreateBuilder("someService")
+                    .AddMethod(unaryEchoStringMethod, HandleUnaryEchoString).Build());
+
+            server.AddPort(serverAddr);
+            server.Start();
+
+            using (Channel channel = new Channel(serverAddr))
+            {
+                var call = new Call<string, string>(unaryEchoStringMethod, channel);
+
+                Assert.AreEqual("ABC", Calls.BlockingUnaryCall(call, "ABC", default(CancellationToken)));
+                Assert.AreEqual("abcdef", Calls.BlockingUnaryCall(call, "abcdef", default(CancellationToken)));
+            }
+         
+            server.ShutdownAsync().Wait();
+
+            GrpcEnvironment.Shutdown();
+        }
+
+        private void HandleUnaryEchoString(string request, IObserver<string> responseObserver) {
+            responseObserver.OnNext(request);
+            responseObserver.OnCompleted();
+        }
+
+    }
+}
+