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/*
*
* 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 <functional>
#include <mutex>
#include <grpcpp/channel.h>
#include <grpcpp/client_context.h>
#include <grpcpp/create_channel.h>
#include <grpcpp/generic/generic_stub.h>
#include <grpcpp/impl/codegen/proto_utils.h>
#include <grpcpp/server.h>
#include <grpcpp/server_builder.h>
#include <grpcpp/server_context.h>
#include <grpcpp/support/client_callback.h>
#include "src/proto/grpc/testing/echo.grpc.pb.h"
#include "test/core/util/test_config.h"
#include "test/cpp/end2end/test_service_impl.h"
#include "test/cpp/util/byte_buffer_proto_helper.h"
#include <gtest/gtest.h>
namespace grpc {
namespace testing {
namespace {
class ClientCallbackEnd2endTest : public ::testing::Test {
protected:
ClientCallbackEnd2endTest() {}
void SetUp() override {
ServerBuilder builder;
builder.RegisterService(&service_);
server_ = builder.BuildAndStart();
is_server_started_ = true;
}
void ResetStub() {
ChannelArguments args;
channel_ = server_->InProcessChannel(args);
stub_.reset(new GenericStub(channel_));
}
void TearDown() override {
if (is_server_started_) {
server_->Shutdown();
}
}
void SendRpcs(int num_rpcs, bool maybe_except) {
const grpc::string kMethodName("/grpc.testing.EchoTestService/Echo");
grpc::string test_string("");
for (int i = 0; i < num_rpcs; i++) {
EchoRequest request;
std::unique_ptr<ByteBuffer> send_buf;
ByteBuffer recv_buf;
ClientContext cli_ctx;
test_string += "Hello world. ";
request.set_message(test_string);
send_buf = SerializeToByteBuffer(&request);
std::mutex mu;
std::condition_variable cv;
bool done = false;
stub_->experimental().UnaryCall(
&cli_ctx, kMethodName, send_buf.get(), &recv_buf,
[&request, &recv_buf, &done, &mu, &cv, maybe_except](Status s) {
GPR_ASSERT(s.ok());
EchoResponse response;
EXPECT_TRUE(ParseFromByteBuffer(&recv_buf, &response));
EXPECT_EQ(request.message(), response.message());
std::lock_guard<std::mutex> l(mu);
done = true;
cv.notify_one();
#if GRPC_ALLOW_EXCEPTIONS
if (maybe_except) {
throw - 1;
}
#endif
});
std::unique_lock<std::mutex> l(mu);
while (!done) {
cv.wait(l);
}
}
}
bool is_server_started_;
std::shared_ptr<Channel> channel_;
std::unique_ptr<grpc::GenericStub> stub_;
TestServiceImpl service_;
std::unique_ptr<Server> server_;
};
TEST_F(ClientCallbackEnd2endTest, SimpleRpc) {
ResetStub();
SendRpcs(1, false);
}
TEST_F(ClientCallbackEnd2endTest, SequentialRpcs) {
ResetStub();
SendRpcs(10, false);
}
#if GRPC_ALLOW_EXCEPTIONS
TEST_F(ClientCallbackEnd2endTest, ExceptingRpc) {
ResetStub();
SendRpcs(10, true);
}
#endif
} // namespace
} // namespace testing
} // namespace grpc
int main(int argc, char** argv) {
grpc_test_init(argc, argv);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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