| /* |
| * |
| * Copyright 2018 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/time.h> |
| #include <grpcpp/channel.h> |
| #include <grpcpp/client_context.h> |
| #include <grpcpp/create_channel.h> |
| #include <grpcpp/security/credentials.h> |
| #include <grpcpp/security/server_credentials.h> |
| #include <grpcpp/server.h> |
| #include <grpcpp/server_builder.h> |
| #include <grpcpp/server_context.h> |
| |
| #include "src/proto/grpc/testing/echo.grpc.pb.h" |
| #include "test/core/util/port.h" |
| #include "test/core/util/test_config.h" |
| #include "test/cpp/util/string_ref_helper.h" |
| |
| #include <gtest/gtest.h> |
| |
| namespace grpc { |
| namespace testing { |
| namespace { |
| |
| const char kServerReturnStatusCode[] = "server_return_status_code"; |
| const char kServerDelayBeforeReturnUs[] = "server_delay_before_return_us"; |
| const char kServerReturnAfterNReads[] = "server_return_after_n_reads"; |
| |
| class TestServiceImpl : public ::grpc::testing::EchoTestService::Service { |
| public: |
| // Unused methods are not implemented. |
| |
| Status RequestStream(ServerContext* context, |
| ServerReader<EchoRequest>* reader, |
| EchoResponse* response) override { |
| int server_return_status_code = |
| GetIntValueFromMetadata(context, kServerReturnStatusCode, 0); |
| int server_delay_before_return_us = |
| GetIntValueFromMetadata(context, kServerDelayBeforeReturnUs, 0); |
| int server_return_after_n_reads = |
| GetIntValueFromMetadata(context, kServerReturnAfterNReads, 0); |
| |
| EchoRequest request; |
| while (server_return_after_n_reads--) { |
| EXPECT_TRUE(reader->Read(&request)); |
| } |
| |
| response->set_message("response msg"); |
| |
| gpr_sleep_until(gpr_time_add( |
| gpr_now(GPR_CLOCK_MONOTONIC), |
| gpr_time_from_micros(server_delay_before_return_us, GPR_TIMESPAN))); |
| |
| return Status(static_cast<StatusCode>(server_return_status_code), ""); |
| } |
| |
| Status BidiStream( |
| ServerContext* context, |
| ServerReaderWriter<EchoResponse, EchoRequest>* stream) override { |
| int server_return_status_code = |
| GetIntValueFromMetadata(context, kServerReturnStatusCode, 0); |
| int server_delay_before_return_us = |
| GetIntValueFromMetadata(context, kServerDelayBeforeReturnUs, 0); |
| int server_return_after_n_reads = |
| GetIntValueFromMetadata(context, kServerReturnAfterNReads, 0); |
| |
| EchoRequest request; |
| EchoResponse response; |
| while (server_return_after_n_reads--) { |
| EXPECT_TRUE(stream->Read(&request)); |
| response.set_message(request.message()); |
| EXPECT_TRUE(stream->Write(response)); |
| } |
| |
| gpr_sleep_until(gpr_time_add( |
| gpr_now(GPR_CLOCK_MONOTONIC), |
| gpr_time_from_micros(server_delay_before_return_us, GPR_TIMESPAN))); |
| |
| return Status(static_cast<StatusCode>(server_return_status_code), ""); |
| } |
| |
| int GetIntValueFromMetadata(ServerContext* context, const char* key, |
| int default_value) { |
| auto metadata = context->client_metadata(); |
| if (metadata.find(key) != metadata.end()) { |
| std::istringstream iss(ToString(metadata.find(key)->second)); |
| iss >> default_value; |
| } |
| return default_value; |
| } |
| }; |
| |
| class ServerEarlyReturnTest : public ::testing::Test { |
| protected: |
| ServerEarlyReturnTest() : picked_port_(0) {} |
| |
| void SetUp() override { |
| int port = grpc_pick_unused_port_or_die(); |
| picked_port_ = port; |
| server_address_ << "127.0.0.1:" << port; |
| ServerBuilder builder; |
| builder.AddListeningPort(server_address_.str(), |
| InsecureServerCredentials()); |
| builder.RegisterService(&service_); |
| server_ = builder.BuildAndStart(); |
| |
| channel_ = |
| CreateChannel(server_address_.str(), InsecureChannelCredentials()); |
| stub_ = grpc::testing::EchoTestService::NewStub(channel_); |
| } |
| |
| void TearDown() override { |
| server_->Shutdown(); |
| if (picked_port_ > 0) { |
| grpc_recycle_unused_port(picked_port_); |
| } |
| } |
| |
| // Client sends 20 requests and the server returns after reading 10 requests. |
| // If return_cancel is true, server returns CANCELLED status. Otherwise it |
| // returns OK. |
| void DoBidiStream(bool return_cancelled) { |
| EchoRequest request; |
| EchoResponse response; |
| ClientContext context; |
| |
| context.AddMetadata(kServerReturnAfterNReads, "10"); |
| if (return_cancelled) { |
| // "1" means CANCELLED |
| context.AddMetadata(kServerReturnStatusCode, "1"); |
| } |
| context.AddMetadata(kServerDelayBeforeReturnUs, "10000"); |
| |
| auto stream = stub_->BidiStream(&context); |
| |
| for (int i = 0; i < 20; i++) { |
| request.set_message(grpc::string("hello") + grpc::to_string(i)); |
| bool write_ok = stream->Write(request); |
| bool read_ok = stream->Read(&response); |
| if (i < 10) { |
| EXPECT_TRUE(write_ok); |
| EXPECT_TRUE(read_ok); |
| EXPECT_EQ(response.message(), request.message()); |
| } else { |
| EXPECT_FALSE(read_ok); |
| } |
| } |
| |
| stream->WritesDone(); |
| EXPECT_FALSE(stream->Read(&response)); |
| |
| Status s = stream->Finish(); |
| if (return_cancelled) { |
| EXPECT_EQ(s.error_code(), StatusCode::CANCELLED); |
| } else { |
| EXPECT_TRUE(s.ok()); |
| } |
| } |
| |
| void DoRequestStream(bool return_cancelled) { |
| EchoRequest request; |
| EchoResponse response; |
| ClientContext context; |
| |
| context.AddMetadata(kServerReturnAfterNReads, "10"); |
| if (return_cancelled) { |
| // "1" means CANCELLED |
| context.AddMetadata(kServerReturnStatusCode, "1"); |
| } |
| context.AddMetadata(kServerDelayBeforeReturnUs, "10000"); |
| |
| auto stream = stub_->RequestStream(&context, &response); |
| for (int i = 0; i < 20; i++) { |
| request.set_message(grpc::string("hello") + grpc::to_string(i)); |
| bool written = stream->Write(request); |
| if (i < 10) { |
| EXPECT_TRUE(written); |
| } |
| } |
| stream->WritesDone(); |
| Status s = stream->Finish(); |
| if (return_cancelled) { |
| EXPECT_EQ(s.error_code(), StatusCode::CANCELLED); |
| } else { |
| EXPECT_TRUE(s.ok()); |
| } |
| } |
| |
| std::shared_ptr<Channel> channel_; |
| std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_; |
| std::unique_ptr<Server> server_; |
| std::ostringstream server_address_; |
| TestServiceImpl service_; |
| int picked_port_; |
| }; |
| |
| TEST_F(ServerEarlyReturnTest, BidiStreamEarlyOk) { DoBidiStream(false); } |
| |
| TEST_F(ServerEarlyReturnTest, BidiStreamEarlyCancel) { DoBidiStream(true); } |
| |
| TEST_F(ServerEarlyReturnTest, RequestStreamEarlyOK) { DoRequestStream(false); } |
| TEST_F(ServerEarlyReturnTest, RequestStreamEarlyCancel) { |
| DoRequestStream(true); |
| } |
| |
| } // namespace |
| } // namespace testing |
| } // namespace grpc |
| |
| int main(int argc, char** argv) { |
| grpc_test_init(argc, argv); |
| ::testing::InitGoogleTest(&argc, argv); |
| return RUN_ALL_TESTS(); |
| } |