diff --git a/src/csharp/Grpc.Core.Tests/Internal/AsyncCallServerTest.cs b/src/csharp/Grpc.Core.Tests/Internal/AsyncCallServerTest.cs index 0e204761f61c0513e25a0a4c0a99090cc3266d3d..f14a61d34f863e75ece50a751f8c428755e181fd 100644 --- a/src/csharp/Grpc.Core.Tests/Internal/AsyncCallServerTest.cs +++ b/src/csharp/Grpc.Core.Tests/Internal/AsyncCallServerTest.cs @@ -181,6 +181,21 @@ namespace Grpc.Core.Internal.Tests AssertFinished(asyncCallServer, fakeCall, finishedTask); } + [Test] + public void WriteAfterWriteStatusThrowsInvalidOperationException() + { + var finishedTask = asyncCallServer.ServerSideCallAsync(); + var responseStream = new ServerResponseStream<string, string>(asyncCallServer); + + asyncCallServer.SendStatusFromServerAsync(Status.DefaultSuccess, new Metadata(), null); + Assert.ThrowsAsync(typeof(InvalidOperationException), async () => await responseStream.WriteAsync("request1")); + + fakeCall.SendStatusFromServerHandler(true); + fakeCall.ReceivedCloseOnServerHandler(true, cancelled: true); + + AssertFinished(asyncCallServer, fakeCall, finishedTask); + } + static void AssertFinished(AsyncCallServer<string, string> asyncCallServer, FakeNativeCall fakeCall, Task finishedTask) { Assert.IsTrue(fakeCall.IsDisposed);