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/*
*
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* Copyright 2016, Google Inc.
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* 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 <memory>
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#include <thread>
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#include <grpc++/channel.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc/grpc.h>
#include <grpc/support/thd.h>
#include <grpc/support/time.h>
#include <gtest/gtest.h>
#include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.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"
namespace grpc {
namespace testing {
namespace {
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class TestServiceImpl : public ::grpc::testing::EchoTestService::Service {
public:
TestServiceImpl() : signal_client_(false), host_() {}
explicit TestServiceImpl(const grpc::string& host)
: signal_client_(false), host_(new grpc::string(host)) {}
Status Echo(ServerContext* context, const EchoRequest* request,
EchoResponse* response) GRPC_OVERRIDE {
response->set_message(request->message());
if (host_) {
response->mutable_param()->set_host(*host_);
}
if (request->has_param() && request->param().client_cancel_after_us()) {
{
std::unique_lock<std::mutex> lock(mu_);
signal_client_ = true;
}
while (!context->IsCancelled()) {
gpr_sleep_until(gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_micros(request->param().client_cancel_after_us(),
GPR_TIMESPAN)));
}
return Status::CANCELLED;
} else if (request->has_param() &&
request->param().server_cancel_after_us()) {
gpr_sleep_until(gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_micros(request->param().server_cancel_after_us(),
GPR_TIMESPAN)));
return Status::CANCELLED;
} else {
EXPECT_FALSE(context->IsCancelled());
}
if (request->has_param() && request->param().echo_metadata()) {
const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata =
context->client_metadata();
for (std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator
iter = client_metadata.begin();
iter != client_metadata.end(); ++iter) {
context->AddTrailingMetadata(ToString(iter->first),
ToString(iter->second));
}
}
if (request->has_param() &&
request->param().response_message_length() > 0) {
response->set_message(
grpc::string(request->param().response_message_length(), '\0'));
}
if (request->has_param() && request->param().echo_peer()) {
response->mutable_param()->set_peer(context->peer());
}
return Status::OK;
}
// Unimplemented is left unimplemented to test the returned error.
Status RequestStream(ServerContext* context,
ServerReader<EchoRequest>* reader,
EchoResponse* response) GRPC_OVERRIDE {
EchoRequest request;
response->set_message("");
int cancel_after_reads = 0;
while (reader->Read(&request)) {
if (cancel_after_reads == 1) {
gpr_log(GPR_INFO, "return cancel status");
return Status::CANCELLED;
} else if (cancel_after_reads > 0) {
cancel_after_reads--;
}
response->mutable_message()->append(request.message());
}
return Status::OK;
}
// Return 3 messages.
// TODO(yangg) make it generic by adding a parameter into EchoRequest
Status ResponseStream(ServerContext* context, const EchoRequest* request,
ServerWriter<EchoResponse>* writer) GRPC_OVERRIDE {
EchoResponse response;
response.set_message(request->message() + "0");
writer->Write(response);
response.set_message(request->message() + "1");
writer->Write(response);
response.set_message(request->message() + "2");
writer->Write(response);
return Status::OK;
}
Status BidiStream(ServerContext* context,
ServerReaderWriter<EchoResponse, EchoRequest>* stream)
GRPC_OVERRIDE {
EchoRequest request;
EchoResponse response;
while (stream->Read(&request)) {
gpr_log(GPR_INFO, "recv msg %s", request.message().c_str());
response.set_message(request.message());
stream->Write(response);
}
return Status::OK;
}
bool signal_client() {
std::unique_lock<std::mutex> lock(mu_);
return signal_client_;
}
private:
bool signal_client_;
std::mutex mu_;
std::unique_ptr<grpc::string> host_;
};
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void* tag(int i) { return (void*)(intptr_t)i; }
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bool VerifyReturnSuccess(CompletionQueue* cq, int i) {
void* got_tag;
bool ok;
EXPECT_TRUE(cq->Next(&got_tag, &ok));
EXPECT_EQ(tag(i), got_tag);
return ok;
}
void Verify(CompletionQueue* cq, int i, bool expect_ok) {
EXPECT_EQ(expect_ok, VerifyReturnSuccess(cq, i));
}
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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>
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;
EchoResponse send_response;
service->RequestEcho(&srv_ctx, &recv_request, &response_writer, cq, cq, tag(1));
Verify(cq, 1, true);
send_response.set_message(recv_request.message());
response_writer.Finish(send_response, Status::OK, tag(2));
Verify(cq, 2, true);
}
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template <class Service>
void HandleClientStreaming(Service* service, ServerCompletionQueue* cq) {
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ServerContext srv_ctx;
EchoRequest recv_request;
EchoResponse send_response;
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);
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));
Verify(cq, 3, true);
}
class HybridEnd2endTest : public ::testing::Test {
protected:
HybridEnd2endTest() {}
void SetUpServer(::grpc::Service* service) {
int port = grpc_pick_unused_port_or_die();
server_address_ << "localhost:" << port;
// Setup server
ServerBuilder builder;
builder.AddListeningPort(server_address_.str(),
grpc::InsecureServerCredentials());
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builder.RegisterService(service);
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cq_ = builder.AddCompletionQueue();
server_ = builder.BuildAndStart();
}
void TearDown() GRPC_OVERRIDE {
server_->Shutdown();
void* ignored_tag;
bool ignored_ok;
cq_->Shutdown();
while (cq_->Next(&ignored_tag, &ignored_ok))
;
}
void ResetStub() {
std::shared_ptr<Channel> channel =
CreateChannel(server_address_.str(), InsecureChannelCredentials());
stub_ = grpc::testing::EchoTestService::NewStub(channel);
}
void TestAllMethods() {
SendEcho();
SendSimpleClientStreaming();
}
void SendEcho() {
EchoRequest send_request;
EchoResponse recv_response;
ClientContext cli_ctx;
send_request.set_message("Hello");
Status recv_status = stub_->Echo(&cli_ctx, send_request, &recv_response);
EXPECT_EQ(send_request.message(), recv_response.message());
EXPECT_TRUE(recv_status.ok());
}
void SendSimpleClientStreaming() {
EchoRequest send_request;
EchoResponse recv_response;
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grpc::string expected_message;
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ClientContext cli_ctx;
send_request.set_message("Hello");
auto stream = stub_->RequestStream(&cli_ctx, &recv_response);
for (int i = 0; i < 5; i++) {
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EXPECT_TRUE(stream->Write(send_request));
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());
}
std::unique_ptr<ServerCompletionQueue> cq_;
std::unique_ptr<grpc::testing::EchoTestService::Stub> stub_;
std::unique_ptr<Server> server_;
std::ostringstream server_address_;
};
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TEST_F(HybridEnd2endTest, AsyncEcho) {
EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> service;
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SetUpServer(&service);
ResetStub();
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std::thread echo_handler_thread([this, &service] { HandleEcho(&service, cq_.get()); });
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TestAllMethods();
echo_handler_thread.join();
}
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TEST_F(HybridEnd2endTest, AsyncEchoRequestStream) {
EchoTestService::WithAsyncMethod_RequestStream<EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> > service;
SetUpServer(&service);
ResetStub();
std::thread echo_handler_thread([this, &service] { HandleEcho(&service, cq_.get()); });
std::thread request_stream_handler_thread([this, &service] { HandleClientStreaming(&service, cq_.get()); });
TestAllMethods();
echo_handler_thread.join();
request_stream_handler_thread.join();
}
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} // namespace
} // namespace testing
} // namespace grpc
int main(int argc, char** argv) {
grpc_test_init(argc, argv);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}