First attempt to add service account creds interop test

3 files changed, 60 insertions, 12 deletions

diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
index ce4a18c192..13bbb5363f 100644
--- a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
@@ -32,9 +32,6 @@
     <PlatformTarget>x86</PlatformTarget>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Google.Apis.Auth">
-      <HintPath>..\packages\Google.Apis.Auth.1.9.1\lib\net40\Google.Apis.Auth.dll</HintPath>
-    </Reference>
     <Reference Include="Google.Apis.Auth.PlatformServices">
       <HintPath>..\packages\Google.Apis.Auth.1.9.1\lib\net40\Google.Apis.Auth.PlatformServices.dll</HintPath>
     </Reference>
@@ -50,10 +47,6 @@
     <Reference Include="Microsoft.Threading.Tasks.Extensions.Desktop">
       <HintPath>..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.Extensions.Desktop.dll</HintPath>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Newtonsoft.Json.6.0.6\lib\net45\Newtonsoft.Json.dll</HintPath>
-    </Reference>
     <Reference Include="nunit.framework">
       <HintPath>..\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
     </Reference>
@@ -61,10 +54,6 @@
     <Reference Include="Google.ProtocolBuffers">
       <HintPath>..\packages\Google.ProtocolBuffers.2.4.1.521\lib\net40\Google.ProtocolBuffers.dll</HintPath>
     </Reference>
-    <Reference Include="System.Collections.Immutable, Version=1.0.34.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Microsoft.Bcl.Immutable.1.0.34\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll</HintPath>
-    </Reference>
     <Reference Include="System.Net" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Net.Http.Extensions">
@@ -74,6 +63,12 @@
       <HintPath>..\packages\Microsoft.Net.Http.2.2.28\lib\net45\System.Net.Http.Primitives.dll</HintPath>
     </Reference>
     <Reference Include="System.Net.Http.WebRequest" />
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\packages\Newtonsoft.Json.6.0.6\lib\net45\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+    <Reference Include="System.Collections.Immutable">
+      <HintPath>..\packages\Microsoft.Bcl.Immutable.1.0.34\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -92,6 +87,10 @@
       <Project>{CCC4440E-49F7-4790-B0AF-FEABB0837AE7}</Project>
       <Name>Grpc.Core</Name>
     </ProjectReference>
+    <ProjectReference Include="..\Grpc.Auth\Grpc.Auth.csproj">
+      <Project>{AE21D0EE-9A2C-4C15-AB7F-5224EED5B0EA}</Project>
+      <Name>Grpc.Auth</Name>
+    </ProjectReference>
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
index 6b92d3c660..20ecd60c30 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
@@ -39,14 +39,25 @@ using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using Google.ProtocolBuffers;
 using grpc.testing;
+using Grpc.Auth;
 using Grpc.Core;
 using Grpc.Core.Utils;
 using NUnit.Framework;
+using Newtonsoft.Json.Linq;
+using System.Threading;
+
+using Google.Apis.Auth.OAuth2;
+using System.Security.Cryptography.X509Certificates;
 
 namespace Grpc.IntegrationTesting
 {
     public class InteropClient
     {
+        private const string ServiceAccountUser = "155450119199-3psnrh1sdr3d8cpj1v46naggf81mhdnk@developer.gserviceaccount.com";
+        private const string ComputeEngineUser = "155450119199-r5aaqa2vqoa9g5mv2m6s3m1l293rlmel@developer.gserviceaccount.com";
+        private const string AuthScope = "https://www.googleapis.com/auth/xapi.zoo";
+        private const string AuthScopeResponse = "xapi.zoo";
+
         private class ClientOptions
         {
             public bool help;
@@ -115,7 +126,18 @@ namespace Grpc.IntegrationTesting
 
             using (Channel channel = new Channel(addr, credentials, channelArgs))
             {
-                TestServiceGrpc.ITestServiceClient client = new TestServiceGrpc.TestServiceClientStub(channel);
+                var stubConfig = StubConfiguration.Default;
+                if (options.testCase == "service_account_creds")
+                {
+                    var credential = GoogleCredential.GetApplicationDefault();
+                    if (credential.IsCreateScopedRequired)
+                    {
+                        credential = credential.CreateScoped(new[] { AuthScope });
+                    }
+                    stubConfig = new StubConfiguration(OAuth2InterceptorFactory.Create(credential));
+                }
+
+                TestServiceGrpc.ITestServiceClient client = new TestServiceGrpc.TestServiceClientStub(channel, stubConfig);
                 RunTestCase(options.testCase, client);
             }
 
@@ -144,6 +166,9 @@ namespace Grpc.IntegrationTesting
                 case "empty_stream":
                     RunEmptyStream(client);
                     break;
+                case "service_account_creds":
+                    RunServiceAccountCreds(client);
+                    break;
                 case "benchmark_empty_unary":
                     RunBenchmarkEmptyUnary(client);
                     break;
@@ -287,6 +312,26 @@ namespace Grpc.IntegrationTesting
             Console.WriteLine("Passed!");
         }
 
+        public static void RunServiceAccountCreds(TestServiceGrpc.ITestServiceClient client)
+        {
+            Console.WriteLine("running service_account_creds");
+            var request = SimpleRequest.CreateBuilder()
+                .SetResponseType(PayloadType.COMPRESSABLE)
+                    .SetResponseSize(314159)
+                    .SetPayload(CreateZerosPayload(271828))
+                    .SetFillUsername(true)
+                    .SetFillOauthScope(true)
+                    .Build();
+
+            var response = client.UnaryCall(request);
+
+            Assert.AreEqual(PayloadType.COMPRESSABLE, response.Payload.Type);
+            Assert.AreEqual(314159, response.Payload.Body.Length);
+            Assert.AreEqual(AuthScopeResponse, response.OauthScope);
+            Assert.AreEqual(ServiceAccountUser, response.Username);
+            Console.WriteLine("Passed!");
+        }
+
         // This is not an official interop test, but it's useful.
         public static void RunBenchmarkEmptyUnary(TestServiceGrpc.ITestServiceClient client)
         {
diff --git a/src/csharp/Grpc.IntegrationTesting/app.config b/src/csharp/Grpc.IntegrationTesting/app.config
index 4e4d248a19..966b777192 100644
--- a/src/csharp/Grpc.IntegrationTesting/app.config
+++ b/src/csharp/Grpc.IntegrationTesting/app.config
@@ -6,6 +6,10 @@
         <assemblyIdentity name="System.Net.Http.Primitives" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
         <bindingRedirect oldVersion="0.0.0.0-4.2.28.0" newVersion="4.2.28.0" />
       </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.2.28.0" newVersion="4.0.0.0" />
+      </dependentAssembly>
     </assemblyBinding>
   </runtime>
 </configuration>
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