elna/tests/tester.cpp

320 lines
11 KiB
C++
Executable File

#include "elna/tester.hpp"
#include <filesystem>
#include <iostream>
#include <fstream>
#include <boost/process/env.hpp>
namespace elna
{
std::uint32_t test_results::total() const noexcept
{
return m_total;
}
std::uint32_t test_results::passed() const noexcept
{
return m_passed;
}
std::uint32_t test_results::failed() const noexcept
{
return m_total - m_passed;
}
int test_results::exit_code() const noexcept
{
return m_total == m_passed ? EXIT_SUCCESS : EXIT_FAILURE;
}
void test_results::add_exit_code(const test_status status) noexcept
{
++m_total;
if (status == test_status::successful)
{
++m_passed;
}
}
static std::filesystem::path in_build_directory()
{
return "build/riscv";
}
static std::string in_build_directory(const std::filesystem::path& path)
{
return in_build_directory() / path;
}
static std::filesystem::path in_actual_directory()
{
return "build/tests";
}
static std::filesystem::path in_root_directory()
{
return "build/root";
}
static std::filesystem::path in_root_directory(const std::filesystem::path& path)
{
return in_root_directory() / path;
}
boost::process::v2::process_stdio get_output_streams(const std::uint8_t stream_number,
boost::asio::readable_pipe& read_pipe)
{
if (stream_number == 1)
{
return boost::process::v2::process_stdio{ nullptr, read_pipe };
}
if (stream_number == 2)
{
return boost::process::v2::process_stdio{ nullptr, {}, read_pipe };
}
return boost::process::v2::process_stdio{ nullptr, read_pipe, read_pipe };
}
int run_for_output(boost::asio::io_context& context, const std::filesystem::path& log_path,
const std::filesystem::path& binary, std::initializer_list<boost::string_view> arguments)
{
boost::asio::readable_pipe read_pipe{ context };
std::string output;
boost::asio::dynamic_string_buffer buffer = boost::asio::dynamic_buffer(output);
boost::system::error_code ec;
boost::process::v2::process_stdio process_stdio;
boost::process::v2::process elna_child(context, binary, arguments,
boost::process::v2::process_stdio{ nullptr, read_pipe, 1 });
std::ofstream log_file{ log_path };
do
{
std::size_t transferred = read_pipe.read_some(buffer.prepare(512), ec);
if (transferred == 0)
{
break;
}
buffer.commit(transferred);
log_file.write(boost::asio::buffer_cast<const char *>(buffer.data()), buffer.size());
buffer.consume(transferred);
}
while (ec == boost::system::errc::success);
return elna_child.wait();
}
test_status build_test(boost::asio::io_context& context, const std::filesystem::directory_entry& test_entry)
{
const std::filesystem::path test_filename = test_entry.path().filename();
std::filesystem::path test_binary = in_root_directory("tests" / test_filename);
std::filesystem::path test_object = in_build_directory(test_filename);
std::filesystem::path test_log = in_build_directory(test_filename);
test_binary.replace_extension();
test_object.replace_extension(".o");
test_log.replace_extension(".log");
std::filesystem::remove(test_binary);
std::filesystem::remove(test_object);
auto result_code = run_for_output(context, test_log, "./build/bin/elna",
{ "-o", test_object.string(), test_entry.path().string() });
if (result_code != 0)
{
return test_status::compile_failed;
}
test_status result = result_code == 0 ? test_status::successful : test_status::compile_failed;
std::vector<std::filesystem::path> environment;
std::vector<std::string> linker_arguments = { "-o", test_binary.string() };
linker_arguments.push_back(test_object.string());
boost::process::v2::execute(boost::process::v2::process(context, boost::process::search_path("ld"),
linker_arguments
));
return result;
}
static test_status check_expectation(const std::filesystem::path& expectation_path,
const std::filesystem::path& actual_directory)
{
std::filesystem::path log_filename = expectation_path.filename();
log_filename.replace_extension(".log");
std::filesystem::path test_log = actual_directory / log_filename;
test_log.replace_extension(".log");
boost::process::child diff(
boost::process::search_path("diff"), "-Nur", "--color",
expectation_path, test_log
);
diff.wait();
if (diff.exit_code() == 0)
{
return test_status::successful;
}
return test_status::expectation_failed;
}
void run_test(boost::asio::io_context& context, const std::filesystem::path& test_binary)
{
std::filesystem::path test_log = test_binary;
test_log.replace_extension(".log");
run_for_output(context, test_log, boost::process::search_path("qemu-riscv32"),
{ test_binary.string() });
}
static void cpio_archive(boost::asio::io_context& context)
{
boost::asio::readable_pipe read_pipe{ context };
boost::asio::writable_pipe write_pipe{ context };
std::string output;
boost::asio::dynamic_string_buffer buffer = boost::asio::dynamic_buffer(output);
boost::system::error_code ec;
std::ofstream archive_output{ "build/root.cpio", std::ios::binary };
boost::process::v2::process_stdio process_stdio;
auto current_path = std::filesystem::current_path();
std::filesystem::current_path(in_root_directory());
boost::process::v2::process cpio_child(context, boost::process::search_path("cpio"),
{ "-o", "--format=newc" },
boost::process::v2::process_stdio{ write_pipe, read_pipe, nullptr });
for (const auto& entry : std::filesystem::recursive_directory_iterator("."))
{
auto entry_path = entry.path().string() + "\n";
auto entry_iterator = std::cbegin(entry_path);
std::size_t written{ 0 };
while (entry_iterator != std::cend(entry_path))
{
std::size_t written = write_pipe.write_some(boost::asio::buffer(entry_iterator.base(),
std::distance(entry_iterator, std::cend(entry_path))));
std::advance(entry_iterator, written);
}
}
write_pipe.close();
do
{
std::size_t transferred = read_pipe.read_some(buffer.prepare(512), ec);
if (transferred == 0)
{
break;
}
buffer.commit(transferred);
archive_output.write(boost::asio::buffer_cast<const char *>(buffer.data()), buffer.size());
buffer.consume(transferred);
}
while (ec == boost::system::errc::success);
std::filesystem::current_path(current_path);
}
static void run_vm(boost::asio::io_context& context)
{
std::vector<std::string> arguments = {
"-nographic",
"-M", "virt",
"-bios", "default",
"-kernel", "build/tools/linux-5.15.159/arch/riscv/boot/Image",
"-append", "quiet",
"-initrd", "build/root.cpio"
};
auto process = boost::process::v2::process(context,
boost::process::search_path("qemu-system-riscv32"), arguments);
boost::process::v2::execute(std::move(process));
}
static void create_init()
{
std::filesystem::copy("build/tools/init", in_root_directory());
}
static test_results run_in_path(const std::filesystem::path test_directory)
{
test_results results;
boost::asio::io_context context;
for (const auto& test_entry : std::filesystem::directory_iterator(test_directory))
{
if (test_entry.path().extension() != ".eln" || !test_entry.is_regular_file())
{
continue;
}
test_status result;
std::cout << "Compiling " << test_entry << std::endl;
try
{
build_test(context, test_entry);
}
catch (const boost::process::process_error& exception)
{
std::cout << exception.what() << std::endl;
}
}
for (const auto& executable_test : std::filesystem::directory_iterator(in_build_directory()))
{
if (executable_test.path().has_extension())
{
continue;
}
run_test(context, executable_test.path());
}
for (const auto& expectation_entry : std::filesystem::directory_iterator(test_directory / "failures"))
{
auto test_entry = test_directory / expectation_entry.path().filename();
test_entry.replace_extension(".eln");
auto result = check_expectation(expectation_entry.path(), in_build_directory());
print_result(test_entry, result);
results.add_exit_code(result);
}
std::filesystem::copy(test_directory / "expectations", in_root_directory("expectations"),
std::filesystem::copy_options::recursive);
create_init();
cpio_archive(context);
run_vm(context);
return results;
}
void print_result(const std::filesystem::path& test_entry, const test_status& result)
{
if (result != test_status::successful)
{
std::cout << test_entry << " failed." << std::endl;
}
}
};
int main()
{
std::filesystem::create_directory(elna::in_build_directory());
std::filesystem::create_directory(elna::in_actual_directory());
std::filesystem::remove_all(elna::in_root_directory());
std::filesystem::create_directory(elna::in_root_directory());
std::filesystem::create_directory(elna::in_root_directory("expectations"));
std::filesystem::create_directory(elna::in_root_directory("tests"));
auto current_environment = boost::this_process::environment();
current_environment["PATH"] += "./build/tools/sysroot/bin";
std::cout << "Run all tests and check the results" << std::endl;
std::filesystem::path test_directory{ "tests" };
const auto results = elna::run_in_path(test_directory);
std::cout << std::endl;
std::cout << results.total() << " tests run, "
<< results.passed() << " passed, "
<< results.failed() << " failed." << std::endl;
return results.exit_code();
}