A first test with typed async client and untyped service for a simple rpc

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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <chrono>
+#include <memory>
+
+#include "test/core/util/test_config.h"
+#include "test/cpp/util/echo.pb.h"
+#include "src/cpp/util/time.h"
+#include <grpc++/anonymous_service.h>
+#include <grpc++/async_unary_call.h>
+#include <grpc++/byte_buffer.h>
+#include <grpc++/channel_arguments.h>
+#include <grpc++/channel_interface.h>
+#include <grpc++/client_context.h>
+#include <grpc++/create_channel.h>
+#include <grpc++/credentials.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include <grpc++/server_context.h>
+#include <grpc++/server_credentials.h>
+#include <grpc++/slice.h>
+#include <grpc++/status.h>
+#include <grpc++/stream.h>
+#include "test/core/util/port.h"
+#include <gtest/gtest.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/thd.h>
+#include <grpc/support/time.h>
+
+using grpc::cpp::test::util::EchoRequest;
+using grpc::cpp::test::util::EchoResponse;
+using std::chrono::system_clock;
+
+namespace grpc {
+namespace testing {
+namespace {
+
+void* tag(int i) { return (void*)(gpr_intptr)i; }
+
+void verify_ok(CompletionQueue* cq, int i, bool expect_ok) {
+  bool ok;
+  void* got_tag;
+  EXPECT_TRUE(cq->Next(&got_tag, &ok));
+  EXPECT_EQ(expect_ok, ok);
+  EXPECT_EQ(tag(i), got_tag);
+}
+
+class AnonymousEnd2endTest : public ::testing::Test {
+ protected:
+  AnonymousEnd2endTest() {}
+
+  void SetUp() GRPC_OVERRIDE {
+    int port = grpc_pick_unused_port_or_die();
+    server_address_ << "localhost:" << port;
+    // Setup server
+    ServerBuilder builder;
+    builder.AddPort(server_address_.str(), InsecureServerCredentials());
+    builder.RegisterAnonymousService(&anonymous_service_);
+    server_ = builder.BuildAndStart();
+  }
+
+  void TearDown() GRPC_OVERRIDE {
+    server_->Shutdown();
+    void* ignored_tag;
+    bool ignored_ok;
+    cli_cq_.Shutdown();
+    srv_cq_.Shutdown();
+    while (cli_cq_.Next(&ignored_tag, &ignored_ok))
+      ;
+    while (srv_cq_.Next(&ignored_tag, &ignored_ok))
+      ;
+  }
+
+  void ResetStub() {
+    std::shared_ptr<ChannelInterface> channel =
+        CreateChannel(server_address_.str(), InsecureCredentials(), ChannelArguments());
+    stub_ = std::move(grpc::cpp::test::util::TestService::NewStub(channel));
+  }
+
+  void server_ok(int i) { verify_ok(&srv_cq_, i, true); }
+  void client_ok(int i) { verify_ok(&cli_cq_, i, true); }
+  void server_fail(int i) { verify_ok(&srv_cq_, i, false); }
+  void client_fail(int i) { verify_ok(&cli_cq_, i, false); }
+
+  void SendRpc(int num_rpcs) {
+    for (int i = 0; i < num_rpcs; i++) {
+      EchoRequest send_request;
+      EchoRequest recv_request;
+      EchoResponse send_response;
+      EchoResponse recv_response;
+      Status recv_status;
+
+      ClientContext cli_ctx;
+      AnonymousServerContext srv_ctx;
+      GenericServerReaderWriter stream(&srv_ctx);
+
+      send_request.set_message("Hello");
+      std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+          stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
+      client_ok(1);
+
+      anonymous_service_.RequestCall(&srv_ctx, &stream, &srv_cq_, tag(2));
+
+      verify_ok(server_->cq(), 2, true);
+      EXPECT_EQ(server_address_.str(), srv_ctx.host());
+      EXPECT_EQ("/grpc.cpp.test.util.TestService/Echo", srv_ctx.method());
+      ByteBuffer recv_buffer;
+      stream.Read(&recv_buffer, tag(3));
+      server_ok(3);
+      std::vector<Slice> slices;
+      recv_buffer.Dump(&slices);
+      EXPECT_EQ(1, slices.size());  // FIXME(yangg) handle real vector
+      grpc::string buf(reinterpret_cast<const char*>(slices[0].begin()),
+                       slices[0].size());
+      EXPECT_TRUE(recv_request.ParseFromString(buf));
+      EXPECT_EQ(send_request.message(), recv_request.message());
+
+      send_response.set_message(recv_request.message());
+      buf.clear();
+      send_response.SerializeToString(&buf);
+      gpr_slice s = gpr_slice_from_copied_string(buf.c_str());
+      Slice slice(s, Slice::STEAL_REF);
+      ByteBuffer send_buffer(&slice, 1);
+      stream.Write(send_buffer, tag(4));
+      server_ok(4);
+
+      stream.Finish(Status::OK, tag(5));
+      server_ok(5);
+
+      response_reader->Finish(&recv_response, &recv_status, tag(4));
+      client_ok(4);
+
+      EXPECT_EQ(send_response.message(), recv_response.message());
+      EXPECT_TRUE(recv_status.IsOk());
+    }
+  }
+
+  CompletionQueue cli_cq_;
+  CompletionQueue srv_cq_;
+  std::unique_ptr<grpc::cpp::test::util::TestService::Stub> stub_;
+  std::unique_ptr<Server> server_;
+  AnonymousService anonymous_service_;
+  std::ostringstream server_address_;
+};
+
+TEST_F(AnonymousEnd2endTest, SimpleRpc) {
+  ResetStub();
+  SendRpc(1);
+}
+
+TEST_F(AnonymousEnd2endTest, SequentialRpcs) {
+  ResetStub();
+  SendRpc(10);
+}
+
+// // Two pings and a final pong.
+// TEST_F(AnonymousEnd2endTest, SimpleClientStreaming) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   ServerAsyncReader<EchoResponse, EchoRequest> srv_stream(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::unique_ptr<ClientAsyncWriter<EchoRequest> > cli_stream(
+//       stub_->AsyncRequestStream(&cli_ctx, &recv_response, &cli_cq_, tag(1)));
+// 
+//   service_.RequestRequestStream(&srv_ctx, &srv_stream, &srv_cq_, tag(2));
+// 
+//   server_ok(2);
+//   client_ok(1);
+// 
+//   cli_stream->Write(send_request, tag(3));
+//   client_ok(3);
+// 
+//   srv_stream.Read(&recv_request, tag(4));
+//   server_ok(4);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+// 
+//   cli_stream->Write(send_request, tag(5));
+//   client_ok(5);
+// 
+//   srv_stream.Read(&recv_request, tag(6));
+//   server_ok(6);
+// 
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+//   cli_stream->WritesDone(tag(7));
+//   client_ok(7);
+// 
+//   srv_stream.Read(&recv_request, tag(8));
+//   server_fail(8);
+// 
+//   send_response.set_message(recv_request.message());
+//   srv_stream.Finish(send_response, Status::OK, tag(9));
+//   server_ok(9);
+// 
+//   cli_stream->Finish(&recv_status, tag(10));
+//   client_ok(10);
+// 
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+//   EXPECT_TRUE(recv_status.IsOk());
+// }
+// 
+// // One ping, two pongs.
+// TEST_F(AnonymousEnd2endTest, SimpleServerStreaming) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   ServerAsyncWriter<EchoResponse> srv_stream(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::unique_ptr<ClientAsyncReader<EchoResponse> > cli_stream(
+//       stub_->AsyncResponseStream(&cli_ctx, send_request, &cli_cq_, tag(1)));
+// 
+//   service_.RequestResponseStream(&srv_ctx, &recv_request, &srv_stream, &srv_cq_,
+//                                  tag(2));
+// 
+//   server_ok(2);
+//   client_ok(1);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+// 
+//   send_response.set_message(recv_request.message());
+//   srv_stream.Write(send_response, tag(3));
+//   server_ok(3);
+// 
+//   cli_stream->Read(&recv_response, tag(4));
+//   client_ok(4);
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+// 
+//   srv_stream.Write(send_response, tag(5));
+//   server_ok(5);
+// 
+//   cli_stream->Read(&recv_response, tag(6));
+//   client_ok(6);
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+// 
+//   srv_stream.Finish(Status::OK, tag(7));
+//   server_ok(7);
+// 
+//   cli_stream->Read(&recv_response, tag(8));
+//   client_fail(8);
+// 
+//   cli_stream->Finish(&recv_status, tag(9));
+//   client_ok(9);
+// 
+//   EXPECT_TRUE(recv_status.IsOk());
+// }
+// 
+// // One ping, one pong.
+// TEST_F(AnonymousEnd2endTest, SimpleBidiStreaming) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   ServerAsyncReaderWriter<EchoResponse, EchoRequest> srv_stream(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::unique_ptr<ClientAsyncReaderWriter<EchoRequest, EchoResponse> >
+//       cli_stream(stub_->AsyncBidiStream(&cli_ctx, &cli_cq_, tag(1)));
+// 
+//   service_.RequestBidiStream(&srv_ctx, &srv_stream, &srv_cq_, tag(2));
+// 
+//   server_ok(2);
+//   client_ok(1);
+// 
+//   cli_stream->Write(send_request, tag(3));
+//   client_ok(3);
+// 
+//   srv_stream.Read(&recv_request, tag(4));
+//   server_ok(4);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+// 
+//   send_response.set_message(recv_request.message());
+//   srv_stream.Write(send_response, tag(5));
+//   server_ok(5);
+// 
+//   cli_stream->Read(&recv_response, tag(6));
+//   client_ok(6);
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+// 
+//   cli_stream->WritesDone(tag(7));
+//   client_ok(7);
+// 
+//   srv_stream.Read(&recv_request, tag(8));
+//   server_fail(8);
+// 
+//   srv_stream.Finish(Status::OK, tag(9));
+//   server_ok(9);
+// 
+//   cli_stream->Finish(&recv_status, tag(10));
+//   client_ok(10);
+// 
+//   EXPECT_TRUE(recv_status.IsOk());
+// }
+// 
+// // Metadata tests
+// TEST_F(AnonymousEnd2endTest, ClientInitialMetadataRpc) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+// 
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::pair<grpc::string, grpc::string> meta1("key1", "val1");
+//   std::pair<grpc::string, grpc::string> meta2("key2", "val2");
+//   cli_ctx.AddMetadata(meta1.first, meta1.second);
+//   cli_ctx.AddMetadata(meta2.first, meta2.second);
+// 
+//   std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+//       stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
+// 
+//   service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, &srv_cq_,
+//                        tag(2));
+//   server_ok(2);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+//   auto client_initial_metadata = srv_ctx.client_metadata();
+//   EXPECT_EQ(meta1.second, client_initial_metadata.find(meta1.first)->second);
+//   EXPECT_EQ(meta2.second, client_initial_metadata.find(meta2.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), client_initial_metadata.size());
+//   client_ok(1);
+// 
+//   send_response.set_message(recv_request.message());
+//   response_writer.Finish(send_response, Status::OK, tag(3));
+// 
+//   server_ok(3);
+// 
+//   response_reader->Finish(&recv_response, &recv_status, tag(4));
+//   client_ok(4);
+// 
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+//   EXPECT_TRUE(recv_status.IsOk());
+// }
+// 
+// TEST_F(AnonymousEnd2endTest, ServerInitialMetadataRpc) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+// 
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::pair<grpc::string, grpc::string> meta1("key1", "val1");
+//   std::pair<grpc::string, grpc::string> meta2("key2", "val2");
+// 
+//   std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+//       stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
+// 
+//   service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, &srv_cq_,
+//                        tag(2));
+//   server_ok(2);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+//   srv_ctx.AddInitialMetadata(meta1.first, meta1.second);
+//   srv_ctx.AddInitialMetadata(meta2.first, meta2.second);
+//   client_ok(1);
+//   response_writer.SendInitialMetadata(tag(3));
+//   server_ok(3);
+// 
+//   response_reader->ReadInitialMetadata(tag(4));
+//   client_ok(4);
+//   auto server_initial_metadata = cli_ctx.GetServerInitialMetadata();
+//   EXPECT_EQ(meta1.second, server_initial_metadata.find(meta1.first)->second);
+//   EXPECT_EQ(meta2.second, server_initial_metadata.find(meta2.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), server_initial_metadata.size());
+// 
+//   send_response.set_message(recv_request.message());
+//   response_writer.Finish(send_response, Status::OK, tag(5));
+//   server_ok(5);
+// 
+//   response_reader->Finish(&recv_response, &recv_status, tag(6));
+//   client_ok(6);
+// 
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+//   EXPECT_TRUE(recv_status.IsOk());
+// }
+// 
+// TEST_F(AnonymousEnd2endTest, ServerTrailingMetadataRpc) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+// 
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::pair<grpc::string, grpc::string> meta1("key1", "val1");
+//   std::pair<grpc::string, grpc::string> meta2("key2", "val2");
+// 
+//   std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+//       stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
+// 
+//   service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, &srv_cq_,
+//                        tag(2));
+//   server_ok(2);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+//   response_writer.SendInitialMetadata(tag(3));
+//   server_ok(3);
+//   client_ok(1);
+// 
+//   send_response.set_message(recv_request.message());
+//   srv_ctx.AddTrailingMetadata(meta1.first, meta1.second);
+//   srv_ctx.AddTrailingMetadata(meta2.first, meta2.second);
+//   response_writer.Finish(send_response, Status::OK, tag(4));
+// 
+//   server_ok(4);
+// 
+//   response_reader->Finish(&recv_response, &recv_status, tag(5));
+//   client_ok(5);
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+//   EXPECT_TRUE(recv_status.IsOk());
+//   auto server_trailing_metadata = cli_ctx.GetServerTrailingMetadata();
+//   EXPECT_EQ(meta1.second, server_trailing_metadata.find(meta1.first)->second);
+//   EXPECT_EQ(meta2.second, server_trailing_metadata.find(meta2.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), server_trailing_metadata.size());
+// }
+// 
+// TEST_F(AnonymousEnd2endTest, MetadataRpc) {
+//   ResetStub();
+// 
+//   EchoRequest send_request;
+//   EchoRequest recv_request;
+//   EchoResponse send_response;
+//   EchoResponse recv_response;
+//   Status recv_status;
+// 
+//   ClientContext cli_ctx;
+//   ServerContext srv_ctx;
+//   grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
+// 
+//   send_request.set_message("Hello");
+//   std::pair<grpc::string, grpc::string> meta1("key1", "val1");
+//   std::pair<grpc::string, grpc::string> meta2(
+//       "key2-bin", {"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc", 13});
+//   std::pair<grpc::string, grpc::string> meta3("key3", "val3");
+//   std::pair<grpc::string, grpc::string> meta6(
+//       "key4-bin",
+//       {"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d", 14});
+//   std::pair<grpc::string, grpc::string> meta5("key5", "val5");
+//   std::pair<grpc::string, grpc::string> meta4(
+//       "key6-bin",
+//       {"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee", 15});
+// 
+//   cli_ctx.AddMetadata(meta1.first, meta1.second);
+//   cli_ctx.AddMetadata(meta2.first, meta2.second);
+// 
+//   std::unique_ptr<ClientAsyncResponseReader<EchoResponse> > response_reader(
+//       stub_->AsyncEcho(&cli_ctx, send_request, &cli_cq_, tag(1)));
+// 
+//   service_.RequestEcho(&srv_ctx, &recv_request, &response_writer, &srv_cq_,
+//                        tag(2));
+//   server_ok(2);
+//   EXPECT_EQ(send_request.message(), recv_request.message());
+//   auto client_initial_metadata = srv_ctx.client_metadata();
+//   EXPECT_EQ(meta1.second, client_initial_metadata.find(meta1.first)->second);
+//   EXPECT_EQ(meta2.second, client_initial_metadata.find(meta2.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), client_initial_metadata.size());
+//   client_ok(1);
+// 
+//   srv_ctx.AddInitialMetadata(meta3.first, meta3.second);
+//   srv_ctx.AddInitialMetadata(meta4.first, meta4.second);
+//   response_writer.SendInitialMetadata(tag(3));
+//   server_ok(3);
+//   response_reader->ReadInitialMetadata(tag(4));
+//   client_ok(4);
+//   auto server_initial_metadata = cli_ctx.GetServerInitialMetadata();
+//   EXPECT_EQ(meta3.second, server_initial_metadata.find(meta3.first)->second);
+//   EXPECT_EQ(meta4.second, server_initial_metadata.find(meta4.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), server_initial_metadata.size());
+// 
+//   send_response.set_message(recv_request.message());
+//   srv_ctx.AddTrailingMetadata(meta5.first, meta5.second);
+//   srv_ctx.AddTrailingMetadata(meta6.first, meta6.second);
+//   response_writer.Finish(send_response, Status::OK, tag(5));
+// 
+//   server_ok(5);
+// 
+//   response_reader->Finish(&recv_response, &recv_status, tag(6));
+//   client_ok(6);
+//   EXPECT_EQ(send_response.message(), recv_response.message());
+//   EXPECT_TRUE(recv_status.IsOk());
+//   auto server_trailing_metadata = cli_ctx.GetServerTrailingMetadata();
+//   EXPECT_EQ(meta5.second, server_trailing_metadata.find(meta5.first)->second);
+//   EXPECT_EQ(meta6.second, server_trailing_metadata.find(meta6.first)->second);
+//   EXPECT_EQ(static_cast<size_t>(2), server_trailing_metadata.size());
+// }
+}  // namespace
+}  // namespace testing
+}  // namespace grpc
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  grpc_init();
+  ::testing::InitGoogleTest(&argc, argv);
+  int result = RUN_ALL_TESTS();
+  grpc_shutdown();
+  google::protobuf::ShutdownProtobufLibrary();
+  return result;
+}