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/*
*
* Copyright 2016 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 <thread>
#include <gflags/gflags.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpcpp/channel.h>
#include <grpcpp/client_context.h>
#include "src/core/lib/transport/byte_stream.h"
#include "src/proto/grpc/testing/messages.pb.h"
#include "src/proto/grpc/testing/test.grpc.pb.h"
#include "test/cpp/interop/http2_client.h"
#include "src/core/lib/gpr/string.h"
#include "src/core/lib/gpr/useful.h"
#include "test/cpp/util/create_test_channel.h"
#include "test/cpp/util/test_config.h"
namespace grpc {
namespace testing {
namespace {
const int kLargeRequestSize = 271828;
const int kLargeResponseSize = 314159;
} // namespace
Http2Client::ServiceStub::ServiceStub(const std::shared_ptr<Channel>& channel)
: channel_(std::move(channel)) {
stub_ = TestService::NewStub(channel);
}
TestService::Stub* Http2Client::ServiceStub::Get() { return stub_.get(); }
Http2Client::Http2Client(const std::shared_ptr<Channel>& channel)
: serviceStub_(channel),
channel_(std::move(channel)),
defaultRequest_(BuildDefaultRequest()) {}
bool Http2Client::AssertStatusCode(const Status& s, StatusCode expected_code) {
if (s.error_code() == expected_code) {
return true;
}
gpr_log(GPR_ERROR, "Error status code: %d (expected: %d), message: %s",
s.error_code(), expected_code, s.error_message().c_str());
abort();
}
Status Http2Client::SendUnaryCall(SimpleResponse* response) {
ClientContext context;
return serviceStub_.Get()->UnaryCall(&context, defaultRequest_, response);
}
SimpleRequest Http2Client::BuildDefaultRequest() {
SimpleRequest request;
request.set_response_size(kLargeResponseSize);
grpc::string payload(kLargeRequestSize, '\0');
request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
return request;
}
bool Http2Client::DoRstAfterHeader() {
gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream after header");
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::INTERNAL);
GPR_ASSERT(!response.has_payload()); // no data should be received
gpr_log(GPR_DEBUG, "Done testing reset stream after header");
return true;
}
bool Http2Client::DoRstAfterData() {
gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream after data");
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::INTERNAL);
// There is no guarantee that data would be received.
gpr_log(GPR_DEBUG, "Done testing reset stream after data");
return true;
}
bool Http2Client::DoRstDuringData() {
gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream during data");
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::INTERNAL);
GPR_ASSERT(!response.has_payload()); // no data should be received
gpr_log(GPR_DEBUG, "Done testing reset stream during data");
return true;
}
bool Http2Client::DoGoaway() {
gpr_log(GPR_DEBUG, "Sending two RPCs and expecting goaway");
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::OK);
GPR_ASSERT(response.payload().body() ==
grpc::string(kLargeResponseSize, '\0'));
// Sleep for one second to give time for client to receive goaway frame.
gpr_timespec sleep_time = gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_seconds(1, GPR_TIMESPAN));
gpr_sleep_until(sleep_time);
response.Clear();
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::OK);
GPR_ASSERT(response.payload().body() ==
grpc::string(kLargeResponseSize, '\0'));
gpr_log(GPR_DEBUG, "Done testing goaway");
return true;
}
bool Http2Client::DoPing() {
gpr_log(GPR_DEBUG, "Sending RPC and expecting ping");
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::OK);
GPR_ASSERT(response.payload().body() ==
grpc::string(kLargeResponseSize, '\0'));
gpr_log(GPR_DEBUG, "Done testing ping");
return true;
}
void Http2Client::MaxStreamsWorker(
const std::shared_ptr<grpc::Channel>& channel) {
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::OK);
GPR_ASSERT(response.payload().body() ==
grpc::string(kLargeResponseSize, '\0'));
}
bool Http2Client::DoMaxStreams() {
gpr_log(GPR_DEBUG, "Testing max streams");
// Make an initial call on the channel to ensure the server's max streams
// setting is received
SimpleResponse response;
AssertStatusCode(SendUnaryCall(&response), grpc::StatusCode::OK);
GPR_ASSERT(response.payload().body() ==
grpc::string(kLargeResponseSize, '\0'));
std::vector<std::thread> test_threads;
for (int i = 0; i < 10; i++) {
test_threads.emplace_back(
std::thread(&Http2Client::MaxStreamsWorker, this, channel_));
}
for (auto it = test_threads.begin(); it != test_threads.end(); it++) {
it->join();
}
gpr_log(GPR_DEBUG, "Done testing max streams");
return true;
}
} // namespace testing
} // namespace grpc
DEFINE_int32(server_port, 0, "Server port.");
DEFINE_string(server_host, "localhost", "Server host to connect to");
DEFINE_string(test_case, "rst_after_header",
"Configure different test cases. Valid options are:\n\n"
"goaway\n"
"max_streams\n"
"ping\n"
"rst_after_data\n"
"rst_after_header\n"
"rst_during_data\n");
int main(int argc, char** argv) {
grpc::testing::InitTest(&argc, &argv, true);
GPR_ASSERT(FLAGS_server_port);
const int host_port_buf_size = 1024;
char host_port[host_port_buf_size];
snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
FLAGS_server_port);
std::shared_ptr<grpc::Channel> channel =
grpc::CreateTestChannel(host_port, grpc::testing::INSECURE);
GPR_ASSERT(channel->WaitForConnected(gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_seconds(300, GPR_TIMESPAN))));
grpc::testing::Http2Client client(channel);
gpr_log(GPR_INFO, "Testing case: %s", FLAGS_test_case.c_str());
int ret = 0;
if (FLAGS_test_case == "rst_after_header") {
client.DoRstAfterHeader();
} else if (FLAGS_test_case == "rst_after_data") {
client.DoRstAfterData();
} else if (FLAGS_test_case == "rst_during_data") {
client.DoRstDuringData();
} else if (FLAGS_test_case == "goaway") {
client.DoGoaway();
} else if (FLAGS_test_case == "ping") {
client.DoPing();
} else if (FLAGS_test_case == "max_streams") {
client.DoMaxStreams();
} else {
const char* testcases[] = {
"goaway", "max_streams", "ping",
"rst_after_data", "rst_after_header", "rst_during_data"};
char* joined_testcases =
gpr_strjoin_sep(testcases, GPR_ARRAY_SIZE(testcases), "\n", nullptr);
gpr_log(GPR_ERROR, "Unsupported test case %s. Valid options are\n%s",
FLAGS_test_case.c_str(), joined_testcases);
gpr_free(joined_testcases);
ret = 1;
}
return ret;
}
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