compat.boost-beast

// Behavioral test for compat.boost-beast, entirely offline: buffer types,
// HTTP request parsing, response serialize + parse round-trip, the error
// path on malformed input, the bundled zlib streams, and beast::static_string.
// Including the boost/beast.hpp aggregate forces one TU through core + http +
// websocket + zlib, which is what validates the whole modular-boost closure
// wiring (asio, system, mp11, intrusive, ...) against the 1.92.0 train.
#include <boost/beast.hpp>

#include <string>

int main() {
    namespace beast = boost::beast;
    namespace asio = boost::asio;
    namespace http = beast::http;
    namespace zlib = beast::zlib;
    bool ok = true;

    // beast's parser.put() returns the number of octets it parsed and the
    // caller must consume exactly that many from the dynamic buffer before
    // feeding the rest — the same contract http::read() implements on top.
    auto parse_all = [](auto& parser, beast::flat_buffer& buf) {
        beast::error_code ec;
// …