draconisplusplus/subprojects/quill-4.2.0/quill/test/integration_tests/SignalHandlerTest.cpp
2024-06-02 06:03:21 -04:00

117 lines
3.6 KiB
C++

#include "doctest/doctest.h"
#include "misc/TestUtilities.h"
#include "quill/Backend.h"
#include "quill/Frontend.h"
#include "quill/LogMacros.h"
#include "quill/sinks/FileSink.h"
#include <cstdio>
#include <string>
#include <string_view>
#include <vector>
using namespace quill;
/***/
TEST_CASE("signal_handler")
{
static constexpr char const* filename = "signal_handler.log";
static std::string const logger_name = "logger";
static constexpr size_t number_of_messages = 10;
static constexpr size_t number_of_threads = 10;
static std::string const logger_name_prefix = "logger_";
// Start the logging backend thread, we expect the signal handler to catch the signal,
// flush the log and raise the signal back
Backend::start_with_signal_handler<FrontendOptions>(BackendOptions{},
std::initializer_list<int>{SIGABRT}, 40);
// For testing purposes we want to keep the application running, we do not reraise the signal
detail::SignalHandlerContext::instance().should_reraise_signal.store(false);
quill::Frontend::preallocate();
std::vector<std::thread> threads;
for (size_t i = 0; i < number_of_threads; ++i)
{
threads.emplace_back(
[i]() mutable
{
#if defined(_WIN32)
// NOTE: On windows the signal handler must be installed on each new thread
quill::init_signal_handler<quill::FrontendOptions>();
#endif
// Set writing logging to a file
auto file_sink = Frontend::create_or_get_sink<FileSink>(
filename,
[]()
{
FileSinkConfig cfg;
cfg.set_open_mode('w');
cfg.set_do_fsync(true);
return cfg;
}(),
FileEventNotifier{});
Logger* logger =
Frontend::create_or_get_logger(logger_name_prefix + std::to_string(i), std::move(file_sink));
for (size_t j = 0; j < number_of_messages; ++j)
{
LOG_INFO(logger, "{} {} {}", i, j,
"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor "
"incididunt ut labore et dolore magna aliqua.");
}
});
}
for (auto& elem : threads)
{
elem.join();
}
// Now raise a signal
std::raise(SIGABRT);
{
// Except the log and the signal handler in the logs
std::vector<std::string> const file_contents = quill::testing::file_contents(filename);
for (size_t i = 0; i < number_of_threads; ++i)
{
// for each thread
for (size_t j = 0; j < number_of_messages; ++j)
{
std::string expected_string = logger_name_prefix + std::to_string(i) + " " +
std::to_string(i) + " " + std::to_string(j) +
" Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor "
"incididunt ut labore et dolore magna aliqua.";
REQUIRE(testing::file_contains(file_contents, expected_string));
}
}
#if defined(_WIN32)
REQUIRE(quill::testing::file_contains(file_contents, std::string{"Received signal: 22 (signum: 22)"}));
#elif defined(__apple_build_version__)
REQUIRE(quill::testing::file_contains(file_contents, std::string{"Received signal: Abort trap: 6 (signum: 6)"}));
#else
REQUIRE(quill::testing::file_contains(file_contents, std::string{"Received signal: Aborted (signum: 6)"}));
#endif
}
// Wait until the backend thread stops for test stability
for (Logger* logger : Frontend::get_all_loggers())
{
logger->flush_log();
Frontend::remove_logger(logger);
}
Backend::stop();
REQUIRE_FALSE(Backend::is_running());
testing::remove_file(filename);
}