1 files changed, 3 insertions, 0 deletions
diff --git a/test/cpp/interop/interop_client.h b/test/cpp/interop/interop_client.h
index 1e89f0987d..7ec7ebee20 100644
--- a/test/cpp/interop/interop_client.h
+++ b/test/cpp/interop/interop_client.h
@@ -79,6 +79,8 @@ class InteropClient {
   bool DoEmptyStream();
   bool DoStatusWithMessage();
   bool DoCustomMetadata();
+  bool DoUnimplementedMethod();
+  bool DoUnimplementedService();
   bool DoCacheableUnary();
   // Auth tests.
   // username is a string containing the user email
@@ -99,6 +101,7 @@ class InteropClient {
     ServiceStub(std::shared_ptr<Channel> channel, bool new_stub_every_call);
 
     TestService::Stub* Get();
+    UnimplementedService::Stub* GetUnimplementedServiceStub();
 
     void Reset(std::shared_ptr<Channel> channel);