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// Copyright 2019 Google LLC
//
// 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
//
// https://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 "dap/network.h"
#include "dap/io.h"
#include "chan.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <chrono>
#include <thread>
namespace {
constexpr int port = 19021;
bool write(const std::shared_ptr<dap::Writer>& w, const std::string& s) {
return w->write(s.data(), s.size()) && w->write("\0", 1);
}
std::string read(const std::shared_ptr<dap::Reader>& r) {
char c;
std::string s;
while (r->read(&c, sizeof(c)) > 0) {
if (c == '\0') {
return s;
}
s += c;
}
return r->isOpen() ? "<read failed>" : "<stream closed>";
}
} // anonymous namespace
TEST(Network, ClientServer) {
dap::Chan<bool> done;
auto server = dap::net::Server::create();
if (!server->start(
port,
[&](const std::shared_ptr<dap::ReaderWriter>& rw) {
ASSERT_EQ(read(rw), "client to server");
ASSERT_TRUE(write(rw, "server to client"));
done.put(true);
},
[&](const char* err) { FAIL() << "Server error: " << err; })) {
FAIL() << "Couldn't start server";
return;
}
for (int i = 0; i < 5; i++) {
auto client = dap::net::connect("localhost", port);
ASSERT_NE(client, nullptr) << "Failed to connect client " << i;
ASSERT_TRUE(write(client, "client to server"));
ASSERT_EQ(read(client), "server to client");
done.take();
std::this_thread::sleep_for(std::chrono::seconds(1));
}
server.reset();
}
TEST(Network, ServerRepeatStopAndRestart) {
dap::Chan<bool> done;
auto onConnect = [&](const std::shared_ptr<dap::ReaderWriter>& rw) {
ASSERT_EQ(read(rw), "client to server");
ASSERT_TRUE(write(rw, "server to client"));
done.put(true);
};
auto onError = [&](const char* err) { FAIL() << "Server error: " << err; };
auto server = dap::net::Server::create();
if (!server->start(port, onConnect, onError)) {
FAIL() << "Couldn't start server";
return;
}
server->stop();
server->stop();
server->stop();
if (!server->start(port, onConnect, onError)) {
FAIL() << "Couldn't restart server";
return;
}
auto client = dap::net::connect("localhost", port);
ASSERT_NE(client, nullptr) << "Failed to connect";
ASSERT_TRUE(write(client, "client to server"));
ASSERT_EQ(read(client), "server to client");
done.take();
server->stop();
server->stop();
server->stop();
server.reset();
}
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