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#include <gtest/gtest.h>
#include <cstring>
#include <filesystem>
#include <memory>
#include <regex>
#include <string>
#include <system_error>
#include <thread>
#include <boost/process/child.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/websocket.hpp>
#include <boost/asio/buffer.hpp>
#include <boost/asio/buffers_iterator.hpp>
#include <boost/asio/connect.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/local/stream_protocol.hpp>
#include <unistd.h>
#include "libreichwein/file.h"
#include "libreichwein/process.h"
#include "config.h"
#include "storage.h"
#include "whiteboard.h"
namespace bp = boost::process;
namespace fs = std::filesystem;
using namespace Reichwein;
using namespace std::string_literals;
namespace {
const fs::path webserverConfigFilename{"./webserver.conf"};
const fs::path testConfigFilename{"./whiteboard.conf"};
const fs::path testDbFilename{"./whiteboard.db3"};
}
class WhiteboardTest: public ::testing::Test
{
protected:
WhiteboardTest(){
}
~WhiteboardTest() override{
}
void SetUp() override
{
File::setFile(testConfigFilename, R"CONFIG(
<config>
<port>::1:9876</port>
<datapath>.</datapath>
<maxage>2592000</maxage>
<threads>4</threads>
</config>
)CONFIG");
std::error_code ec;
fs::remove(testDbFilename, ec);
m_config = std::make_shared<Config>(testConfigFilename);
m_pid = fork();
if (m_pid == -1) {
throw std::runtime_error("Error on fork(): "s + strerror(errno));
} else if (m_pid == 0) { // child
Whiteboard whiteboard;
std::vector<std::string> argvv{{"whiteboard", "-c", testConfigFilename.generic_string()}};
char* argv[] = {argvv[0].data(), argvv[1].data(), argvv[2].data(), nullptr};
whiteboard.run(argvv.size(), argv);
exit(0);
}
Process::wait_for_pid_listening_on(m_pid, 9876);
std::this_thread::sleep_for(std::chrono::milliseconds(20));
}
void TearDown() override
{
if (m_pid == 0)
throw std::runtime_error("Whiteboard not running on requesting SIGTERM");
if (kill(m_pid, SIGTERM) != 0)
throw std::runtime_error("Unable to SIGTERM Whiteboard");
if (int result = waitpid(m_pid, NULL, 0); result != m_pid)
throw std::runtime_error("waitpid returned "s + std::to_string(result));
std::error_code ec;
fs::remove(testDbFilename, ec);
fs::remove(testConfigFilename, ec);
}
std::shared_ptr<Config> m_config;
pid_t m_pid{};
};
class WebsocketClient
{
public:
WebsocketClient()
{
std::string host = "::1";
auto const port = "9876" ;
// These objects perform our I/O
boost::asio::ip::tcp::resolver resolver{ioc_};
ws_ = std::make_unique<boost::beast::websocket::stream<boost::asio::ip::tcp::socket>>(ioc_);
// Look up the domain name
resolver_results_ = resolver.resolve(host, port);
connect();
handshake();
}
void connect()
{
// Make the connection on the IP address we get from a lookup
ep_ = boost::asio::connect(boost::beast::get_lowest_layer(*ws_), resolver_results_);
}
void handshake()
{
// Update the host_ string. This will provide the value of the
// Host HTTP header during the WebSocket handshake.
// See https://tools.ietf.org/html/rfc7230#section-5.4
std::string host{"[::1]:9876"};
// Set a decorator to change the User-Agent of the handshake
ws_->set_option(boost::beast::websocket::stream_base::decorator(
[](boost::beast::websocket::request_type& req)
{
req.set(boost::beast::http::field::user_agent,
std::string("Reichwein.IT Test Websocket Client"));
}));
// Perform the websocket handshake
ws_->handshake(host, "/");
}
void write(const std::string& data)
{
ws_->write(boost::asio::buffer(data));
}
std::string read()
{
boost::beast::flat_buffer buffer;
ws_->read(buffer);
return {boost::asio::buffers_begin(buffer.data()), boost::asio::buffers_end(buffer.data())};
}
~WebsocketClient()
{
}
private:
boost::asio::io_context ioc_;
boost::asio::ip::tcp::resolver::results_type resolver_results_;
std::unique_ptr<boost::beast::websocket::stream<boost::asio::ip::tcp::socket>> ws_;
boost::asio::ip::tcp::endpoint ep_;
};
//
// tests via websocket server in separate process (hides coverage)
//
TEST_F(WhiteboardTest, websocket_server_connection)
{
WebsocketClient wc;
}
TEST_F(WhiteboardTest, websocket_server_generate_id)
{
WebsocketClient wc;
wc.write("<request><command>newid</command></request>");
std::string result0 {wc.read()};
ASSERT_TRUE(boost::algorithm::starts_with(result0, "<serverinfo><type>newid</type><id>"));
ASSERT_TRUE(boost::algorithm::ends_with(result0, "</id></serverinfo>"));
ASSERT_EQ(result0.size(), 58);
wc.write("<request><command>newid</command></request>");
std::string result1 {wc.read()};
ASSERT_TRUE(boost::algorithm::starts_with(result1, "<serverinfo><type>newid</type><id>"));
ASSERT_TRUE(boost::algorithm::ends_with(result1, "</id></serverinfo>"));
ASSERT_EQ(result1.size(), 58);
ASSERT_NE(result0, result1);
}
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