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/*
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*
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* Copyright 2016, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <memory>
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#include <thread>
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#include <grpc++/channel.h>
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#include <grpc++/client_context.h>
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#include <grpc++/create_channel.h>
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#include <grpc++/server.h>
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#include <grpc++/server_builder.h>
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#include <grpc++/server_context.h>
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#include <grpc/grpc.h>
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#include <grpc/support/thd.h>
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#include <grpc/support/time.h>
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#include <gtest/gtest.h>
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#include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
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#include "src/proto/grpc/testing/echo.grpc.pb.h"
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#include "test/core/util/port.h"
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#include "test/core/util/test_config.h"
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#include "test/cpp/util/string_ref_helper.h"
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namespace grpc {
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namespace testing {
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namespace {
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class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
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public:
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TestServiceImpl() : signal_client_(false), host_() {}
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explicit TestServiceImpl(const grpc::string& host)
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: signal_client_(false), host_(new grpc::string(host)) {}
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Status Echo(ServerContext* context, const EchoRequest* request,
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EchoResponse* response) GRPC_OVERRIDE {
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response->set_message(request->message());
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if (host_) {
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response->mutable_param()->set_host(*host_);
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}
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if (request->has_param() && request->param().client_cancel_after_us()) {
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{
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std::unique_lock<std::mutex> lock(mu_);
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signal_client_ = true;
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}
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while (!context->IsCancelled()) {
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gpr_sleep_until(gpr_time_add(
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gpr_now(GPR_CLOCK_REALTIME),
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gpr_time_from_micros(request->param().client_cancel_after_us(),
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GPR_TIMESPAN)));
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}
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return Status::CANCELLED;
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} else if (request->has_param() &&
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request->param().server_cancel_after_us()) {
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gpr_sleep_until(gpr_time_add(
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gpr_now(GPR_CLOCK_REALTIME),
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gpr_time_from_micros(request->param().server_cancel_after_us(),
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GPR_TIMESPAN)));
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return Status::CANCELLED;
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} else {
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EXPECT_FALSE(context->IsCancelled());
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}
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if (request->has_param() && request->param().echo_metadata()) {
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const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata =
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context->client_metadata();
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for (std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator
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iter = client_metadata.begin();
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iter != client_metadata.end(); ++iter) {
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context->AddTrailingMetadata(ToString(iter->first),
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ToString(iter->second));
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}
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}
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if (request->has_param() &&
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request->param().response_message_length() > 0) {
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response->set_message(
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grpc::string(request->param().response_message_length(), '\0'));
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}
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if (request->has_param() && request->param().echo_peer()) {
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response->mutable_param()->set_peer(context->peer());
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}
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return Status::OK;
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}
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// Unimplemented is left unimplemented to test the returned error.
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Status RequestStream(ServerContext* context,
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ServerReader<EchoRequest>* reader,
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EchoResponse* response) GRPC_OVERRIDE {
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EchoRequest request;
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response->set_message("");
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int cancel_after_reads = 0;
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while (reader->Read(&request)) {
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if (cancel_after_reads == 1) {
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gpr_log(GPR_INFO, "return cancel status");
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return Status::CANCELLED;
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} else if (cancel_after_reads > 0) {
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cancel_after_reads--;
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}
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response->mutable_message()->append(request.message());
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}
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return Status::OK;
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}
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// Return 3 messages.
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// TODO(yangg) make it generic by adding a parameter into EchoRequest
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Status ResponseStream(ServerContext* context, const EchoRequest* request,
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ServerWriter<EchoResponse>* writer) GRPC_OVERRIDE {
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EchoResponse response;
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response.set_message(request->message() + "0");
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writer->Write(response);
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response.set_message(request->message() + "1");
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writer->Write(response);
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response.set_message(request->message() + "2");
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writer->Write(response);
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return Status::OK;
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}
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Status BidiStream(ServerContext* context,
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ServerReaderWriter<EchoResponse, EchoRequest>* stream)
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GRPC_OVERRIDE {
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EchoRequest request;
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EchoResponse response;
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while (stream->Read(&request)) {
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gpr_log(GPR_INFO, "recv msg %s", request.message().c_str());
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response.set_message(request.message());
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stream->Write(response);
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}
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return Status::OK;
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}
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bool signal_client() {
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std::unique_lock<std::mutex> lock(mu_);
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return signal_client_;
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}
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private:
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bool signal_client_;
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std::mutex mu_;
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std::unique_ptr<grpc::string> host_;
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};
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void* tag(int i) { return (void*)(intptr_t)i; }
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bool VerifyReturnSuccess(CompletionQueue* cq, int i) {
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void* got_tag;
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bool ok;
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EXPECT_TRUE(cq->Next(&got_tag, &ok));
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EXPECT_EQ(tag(i), got_tag);
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return ok;
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}
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void Verify(CompletionQueue* cq, int i, bool expect_ok) {
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EXPECT_EQ(expect_ok, VerifyReturnSuccess(cq, i));
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}
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// Handlers to handle async request at a server. To be run in a separate thread.
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template <class Service>
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void HandleEcho(Service* service, ServerCompletionQueue* cq) {
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ServerContext srv_ctx;
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grpc::ServerAsyncResponseWriter<EchoResponse> response_writer(&srv_ctx);
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EchoRequest recv_request;
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EchoResponse send_response;
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service->RequestEcho(&srv_ctx, &recv_request, &response_writer, cq, cq, tag(1));
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Verify(cq, 1, true);
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send_response.set_message(recv_request.message());
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response_writer.Finish(send_response, Status::OK, tag(2));
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Verify(cq, 2, true);
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}
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template <class Service>
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void HandleClientStreaming(Service* service, ServerCompletionQueue* cq) {
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ServerContext srv_ctx;
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EchoRequest recv_request;
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EchoResponse send_response;
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ServerAsyncReader<EchoResponse, EchoRequest> srv_stream(&srv_ctx);
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service->RequestRequestStream(&srv_ctx, &srv_stream, cq, cq, tag(1));
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Verify(cq, 1, true);
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do {
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send_response.mutable_message()->append(recv_request.message());
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srv_stream.Read(&recv_request, tag(2));
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} while (VerifyReturnSuccess(cq, 2));
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srv_stream.Finish(send_response, Status::OK, tag(3));
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Verify(cq, 3, true);
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}
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class HybridEnd2endTest : public ::testing::Test {
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protected:
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HybridEnd2endTest() {}
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void SetUpServer(::grpc::Service* service) {
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int port = grpc_pick_unused_port_or_die();
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server_address_ << "localhost:" << port;
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// Setup server
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ServerBuilder builder;
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builder.AddListeningPort(server_address_.str(),
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grpc::InsecureServerCredentials());
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builder.RegisterService(service);
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cq_ = builder.AddCompletionQueue();
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server_ = builder.BuildAndStart();
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}
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void TearDown() GRPC_OVERRIDE {
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server_->Shutdown();
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void* ignored_tag;
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bool ignored_ok;
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cq_->Shutdown();
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while (cq_->Next(&ignored_tag, &ignored_ok))
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;
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}
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void ResetStub() {
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std::shared_ptr<Channel> channel =
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CreateChannel(server_address_.str(), InsecureChannelCredentials());
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stub_ = grpc::testing::EchoTestService::NewStub(channel);
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}
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void TestAllMethods() {
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SendEcho();
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SendSimpleClientStreaming();
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}
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void SendEcho() {
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EchoRequest send_request;
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EchoResponse recv_response;
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ClientContext cli_ctx;
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send_request.set_message("Hello");
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Status recv_status = stub_->Echo(&cli_ctx, send_request, &recv_response);
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EXPECT_EQ(send_request.message(), recv_response.message());
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EXPECT_TRUE(recv_status.ok());
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}
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void SendSimpleClientStreaming() {
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EchoRequest send_request;
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EchoResponse recv_response;
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grpc::string expected_message;
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ClientContext cli_ctx;
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send_request.set_message("Hello");
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auto stream = stub_->RequestStream(&cli_ctx, &recv_response);
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for (int i = 0; i < 5; i++) {
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EXPECT_TRUE(stream->Write(send_request));
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expected_message.append(send_request.message());
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}
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stream->WritesDone();
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Status recv_status = stream->Finish();
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EXPECT_EQ(expected_message, recv_response.message());
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EXPECT_TRUE(recv_status.ok());
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}
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std::unique_ptr<ServerCompletionQueue> cq_;
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std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
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std::unique_ptr<Server> server_;
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std::ostringstream server_address_;
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};
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TEST_F(HybridEnd2endTest, AsyncEcho) {
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EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> service;
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SetUpServer(&service);
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ResetStub();
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std::thread echo_handler_thread([this, &service] { HandleEcho(&service, cq_.get()); });
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TestAllMethods();
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echo_handler_thread.join();
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}
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TEST_F(HybridEnd2endTest, AsyncEchoRequestStream) {
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EchoTestService::WithAsyncMethod_RequestStream<EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> > service;
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SetUpServer(&service);
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ResetStub();
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std::thread echo_handler_thread([this, &service] { HandleEcho(&service, cq_.get()); });
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std::thread request_stream_handler_thread([this, &service] { HandleClientStreaming(&service, cq_.get()); });
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TestAllMethods();
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echo_handler_thread.join();
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request_stream_handler_thread.join();
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}
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} // namespace
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} // namespace testing
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} // namespace grpc
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int main(int argc, char** argv) {
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grpc_test_init(argc, argv);
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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