Clean up

src/csharp/Grpc.HealthCheck.Tests/HealthServiceImplTest.cs

@@ -114,6 +114,7 @@ namespace Grpc.HealthCheck.Tests
             impl.ClearStatus("");
             Assert.AreEqual(HealthCheckResponse.Types.ServingStatus.ServiceUnknown, (await nextWriteTask).Status);
 
+            Assert.IsFalse(callTask.IsCompleted);
             cts.Cancel();
             await callTask;
         }

src/csharp/Grpc.HealthCheck.Tests/NUnitMain.cs

@@ -33,7 +33,7 @@ namespace Grpc.HealthCheck.Tests
         public static int Main(string[] args)
         {
             // Make logger immune to NUnit capturing stdout and stderr to workaround https://github.com/nunit/nunit/issues/1406.
-            //GrpcEnvironment.SetLogger(new ConsoleLogger());
+            GrpcEnvironment.SetLogger(new ConsoleLogger());
             return new AutoRun(typeof(NUnitMain).GetTypeInfo().Assembly).Execute(args);
         }
     }

src/csharp/Grpc.HealthCheck.Tests/TestResponseStreamWriter.cs

@@ -1,4 +1,4 @@
-#region Copyright notice and license
+#region Copyright notice and license
 // Copyright 2015 gRPC authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,7 +21,7 @@ using Grpc.Health.V1;
 
 namespace Grpc.HealthCheck.Tests
 {
-    private class TestResponseStreamWriter : IServerStreamWriter<HealthCheckResponse>
+    internal class TestResponseStreamWriter : IServerStreamWriter<HealthCheckResponse>
     {
         private TaskCompletionSource<HealthCheckResponse> _tcs;