elna/tests/tester.cpp

264 lines
8.7 KiB
C++
Executable File

#include "elna/tester.hpp"
#include <iostream>
#include <algorithm>
#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;
}
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 };
}
test_result run_for_output(boost::asio::io_context& context, const std::uint8_t stream_number,
const std::filesystem::path& binary, std::initializer_list<boost::string_view> arguments)
{
boost::asio::readable_pipe read_pipe{ context };
test_result result{};
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,
get_output_streams(stream_number, read_pipe));
do
{
std::size_t transferred = read_pipe.read_some(buffer.prepare(512), ec);
if (transferred == 0)
{
break;
}
buffer.commit(transferred);
result.output.append(boost::asio::buffer_cast<const char *>(buffer.data()), buffer.size());
buffer.consume(transferred);
}
while (ec == boost::system::errc::success);
result.code = elna_child.wait();
return result;
}
std::string find_object(const std::vector<std::filesystem::path>& environment, const std::string& object)
{
auto variable = std::find(environment.cbegin(), environment.cend(), object);
for (const auto& variable : environment)
{
auto full_path = variable / object;
if (std::filesystem::exists(full_path))
{
return full_path.native();
}
}
return object;
}
test_result 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_build_directory(test_filename);
std::filesystem::path test_object = test_binary;
test_binary.replace_extension();
test_object.replace_extension(".o");
std::filesystem::remove(test_binary);
std::filesystem::remove(test_object);
test_result result = run_for_output(context, 2, "./build/bin/elna",
{ "-o", test_object.string(), test_entry.path().string() });
if (result.code != 0)
{
result.status = test_status::compile_failed;
return result;
}
std::vector<std::filesystem::path> environment;
std::vector<std::string> linker_arguments = { "-o", test_binary.string() };
for (const auto segment : boost::this_process::environment()["LIBRARY_PATH"].to_vector())
{
linker_arguments.push_back("-L" + segment);
environment.push_back(std::filesystem::path(segment));
}
linker_arguments.push_back(find_object(environment, "crt0.o"));
linker_arguments.push_back(find_object(environment, "crtbegin.o"));
linker_arguments.push_back(test_object.string());
linker_arguments.insert(linker_arguments.cend(),
{ "--start-group", "-lgcc", "-lc", "-lgloss", "--end-group" });
linker_arguments.push_back(find_object(environment, "crtend.o"));
boost::process::v2::execute(boost::process::v2::process(context,
boost::process::search_path("ld"),
linker_arguments
));
return test_result{};
}
static test_result check_expectation(const std::filesystem::directory_entry& test_entry, const test_result& run)
{
std::filesystem::path test_filename = test_entry.path().filename();
test_filename.replace_extension(".txt");
const std::filesystem::path expectation_path =
test_entry.path().parent_path() / "expectations" / test_filename;
const std::filesystem::path failures_path =
test_entry.path().parent_path() / "failures" / test_filename;
std::string expected_result_path;
if (std::filesystem::exists(expectation_path))
{
expected_result_path = expectation_path.string();
}
else if (std::filesystem::exists(failures_path))
{
expected_result_path = failures_path.string();
}
else
{
return test_result{ test_status::expectation_not_found, run.code, run.output };
}
boost::process::opstream pipe_stream;
boost::process::child diff(
boost::process::search_path("diff"), "-Nur", "--color",
expected_result_path, "-",
boost::process::std_in < pipe_stream
);
pipe_stream << run.output;
pipe_stream.flush();
pipe_stream.pipe().close();
diff.wait();
if (diff.exit_code() == 0)
{
return test_result{ test_status::successful, run.code, run.output };
}
return test_result{ test_status::expectation_failed, run.code, run.output };
}
test_result run_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_build_directory(test_filename);
test_binary.replace_extension();
return run_for_output(context, 1,
boost::process::search_path("qemu-riscv32"),
{ test_binary.string() });
}
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_result result;
std::cout << "Running " << test_entry << std::endl;
try
{
result = build_test(context, test_entry);
if (result.status == test_status::successful)
{
result = run_test(context, test_entry);
}
result = check_expectation(test_entry, result);
}
catch (const boost::process::process_error& exception)
{
result.status = test_status::build_failed;
result.output = exception.what();
std::cout << result.output << std::endl;
}
print_result(test_entry, result);
results.add_exit_code(result.status);
}
return results;
}
void print_result(const std::filesystem::directory_entry& test_entry, const test_result& result)
{
if (result.status != test_status::successful)
{
std::cout << test_entry << " failed." << std::endl;
}
}
};
int main()
{
std::filesystem::create_directory(elna::in_build_directory());
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();
}