src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs

#region Copyright notice and license

// Copyright 2015, Google Inc.
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// modification, are permitted provided that the following conditions are
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//
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// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
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#endregion

using System;
using System.Collections.Generic;
using System.IO;
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 MetadataCredentialsTest
    {
        const string Host = "localhost";
        Server server;
        Channel channel;
        TestService.ITestServiceClient client;

        [TestFixtureSetUp]
        public void Init()
        {
            var serverCredentials = new SslServerCredentials(new[] { new KeyCertificatePair(File.ReadAllText(TestCredentials.ServerCertChainPath), File.ReadAllText(TestCredentials.ServerPrivateKeyPath)) });
            server = new Server
            {
                Services = { TestService.BindService(new TestServiceImpl()) },
                Ports = { { Host, ServerPort.PickUnused, serverCredentials } }
            };
            server.Start();

            var options = new List<ChannelOption>
            {
                new ChannelOption(ChannelOptions.SslTargetNameOverride, TestCredentials.DefaultHostOverride)
            };

            var asyncAuthInterceptor = new AsyncAuthInterceptor(async (context, metadata) =>
            {
                await Task.Delay(100);  // make sure the operation is asynchronous.
                metadata.Add("authorization", "SECRET_TOKEN");
            });

            var clientCredentials = ChannelCredentials.Create(
                new SslCredentials(File.ReadAllText(TestCredentials.ClientCertAuthorityPath)),
                CallCredentials.FromInterceptor(asyncAuthInterceptor));
            channel = new Channel(Host, server.Ports.Single().BoundPort, clientCredentials, options);
            client = TestService.NewClient(channel);
        }

        [TestFixtureTearDown]
        public void Cleanup()
        {
            channel.ShutdownAsync().Wait();
            server.ShutdownAsync().Wait();
        }

        [Test]
        public void MetadataCredentials()
        {
            var response = client.UnaryCall(new SimpleRequest { ResponseSize = 10 });
            Assert.AreEqual(10, response.Payload.Body.Length);
        }
    }
}