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/*
*
* Copyright 2015 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/log.h>
#include <grpc/support/time.h>
#include <grpcpp/channel.h>
#include <grpcpp/client_context.h>
#include <grpcpp/create_channel.h>
#include <grpcpp/server.h>
#include <grpcpp/server_builder.h>
#include <grpcpp/server_context.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/subprocess.h"
#include <gtest/gtest.h>
using grpc::testing::EchoRequest;
using grpc::testing::EchoResponse;
using std::chrono::system_clock;
static std::string g_root;
namespace grpc {
namespace testing {
namespace {
class CrashTest : public ::testing::Test {
protected:
CrashTest() {}
std::unique_ptr<grpc::testing::EchoTestService::Stub> CreateServerAndStub() {
auto port = grpc_pick_unused_port_or_die();
std::ostringstream addr_stream;
addr_stream << "localhost:" << port;
auto addr = addr_stream.str();
server_.reset(new SubProcess({
g_root + "/client_crash_test_server",
"--address=" + addr,
}));
GPR_ASSERT(server_);
return grpc::testing::EchoTestService::NewStub(
CreateChannel(addr, InsecureChannelCredentials()));
}
void KillServer() { server_.reset(); }
private:
std::unique_ptr<SubProcess> server_;
};
TEST_F(CrashTest, KillBeforeWrite) {
auto stub = CreateServerAndStub();
EchoRequest request;
EchoResponse response;
ClientContext context;
context.set_wait_for_ready(true);
auto stream = stub->BidiStream(&context);
request.set_message("Hello");
EXPECT_TRUE(stream->Write(request));
EXPECT_TRUE(stream->Read(&response));
EXPECT_EQ(response.message(), request.message());
KillServer();
request.set_message("You should be dead");
// This may succeed or fail depending on the state of the TCP connection
stream->Write(request);
// But the read will definitely fail
EXPECT_FALSE(stream->Read(&response));
EXPECT_FALSE(stream->Finish().ok());
}
TEST_F(CrashTest, KillAfterWrite) {
auto stub = CreateServerAndStub();
EchoRequest request;
EchoResponse response;
ClientContext context;
context.set_wait_for_ready(true);
auto stream = stub->BidiStream(&context);
request.set_message("Hello");
EXPECT_TRUE(stream->Write(request));
EXPECT_TRUE(stream->Read(&response));
EXPECT_EQ(response.message(), request.message());
request.set_message("I'm going to kill you");
EXPECT_TRUE(stream->Write(request));
KillServer();
// This may succeed or fail depending on how quick the server was
stream->Read(&response);
EXPECT_FALSE(stream->Finish().ok());
}
} // namespace
} // namespace testing
} // namespace grpc
int main(int argc, char** argv) {
std::string me = argv[0];
auto lslash = me.rfind('/');
if (lslash != std::string::npos) {
g_root = me.substr(0, lslash);
} else {
g_root = ".";
}
grpc::testing::TestEnvironment env(argc, argv);
::testing::InitGoogleTest(&argc, argv);
// Order seems to matter on these tests: run three times to eliminate that
for (int i = 0; i < 3; i++) {
if (RUN_ALL_TESTS() != 0) {
return 1;
}
}
return 0;
}
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