g3log/test_unit/test_fatal.cpp

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2023-12-06 07:33:03 +01:00
/** ==========================================================================re
* 2011 by KjellKod.cc. This is PUBLIC DOMAIN to use at your own risk and comes
* with no warranties. This code is yours to share, use and modify with no
* strings attached and no restrictions or obligations.
*
* For more information see g3log/LICENSE or refer refer to http://unlicense.org
* ============================================================================*/
#include <gtest/gtest.h>
#include "g3log/g3log.hpp"
#include "g3log/generated_definitions.hpp"
#include "g3log/loglevels.hpp"
#include "g3log/logworker.hpp"
#include "testing_helpers.h"
#include <algorithm>
#include <chrono>
#include <cstdio>
#include <exception>
#include <iomanip>
#include <memory>
#include <string>
#include <thread>
namespace {
const std::string log_directory = "./";
const std::string t_info = "test INFO ";
const std::string t_info2 = "test INFO 123";
const std::string t_debug = "test DEBUG ";
const std::string t_debug3 = "test DEBUG 1.123456";
const std::string t_warning = "test WARNING ";
const std::string t_warning3 = "test WARNING yello";
std::atomic<size_t> g_fatal_counter = {0};
void fatalCounter() {
++g_fatal_counter;
}
} // end anonymous namespace
using namespace testing_helpers;
TEST(LogTest, LOGF__FATAL) {
RestoreFileLogger logger(log_directory);
ASSERT_FALSE(mockFatalWasCalled());
LOGF(FATAL, "This message should throw %d", 0);
EXPECT_TRUE(mockFatalWasCalled());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(mockFatalMessage(), "This message should throw 0")) << "\n****" << mockFatalMessage();
EXPECT_TRUE(verifyContent(mockFatalMessage(), "FATAL"));
auto file_content = logger.resetAndRetrieveContent();
EXPECT_TRUE(verifyContent(file_content, "This message should throw 0")) << "\n****" << file_content;
EXPECT_TRUE(verifyContent(file_content, "FATAL"));
}
#ifndef DISABLE_FATAL_SIGNALHANDLING
TEST(LogTest, FatalSIGTERM__UsingDefaultHandler) {
RestoreFileLogger logger(log_directory);
g_fatal_counter.store(0);
g3::setFatalPreLoggingHook(fatalCounter);
raise(SIGTERM);
logger.reset();
EXPECT_EQ(g_fatal_counter.load(), size_t{1});
}
#if !(defined(WIN32) || defined(_WIN32) || defined(__WIN32__))
namespace {
std::atomic<size_t> customFatalCounter = {0};
std::atomic<int> lastEncounteredSignal = {0};
void customSignalHandler(int signal_number, siginfo_t* info, void* unused_context) {
lastEncounteredSignal.store(signal_number);
++customFatalCounter;
}
void installCustomSIGTERM() {
struct sigaction action;
memset(&action, 0, sizeof(action));
sigemptyset(&action.sa_mask);
action.sa_sigaction = &customSignalHandler;
action.sa_flags = SA_SIGINFO;
sigaction(SIGTERM, &action, nullptr);
}
std::atomic<bool> oldSigTermCheck = {false};
void customOldSignalHandler(int signal_number, siginfo_t* info, void* unused_context) {
lastEncounteredSignal.store(signal_number);
oldSigTermCheck.store(true);
}
void installCustomOldSIGTERM() {
struct sigaction action;
memset(&action, 0, sizeof(action));
sigemptyset(&action.sa_mask);
action.sa_sigaction = &customOldSignalHandler;
action.sa_flags = SA_SIGINFO;
sigaction(SIGTERM, &action, nullptr);
}
} // namespace
// Override of signal handling and testing of it should be fairly easy to port to windows
// ref: https://github.com/KjellKod/g3log/blob/master/src/crashhandler_windows.cpp
// what is missing is the override of signals and custom installation of signals
// ref: https://github.com/KjellKod/g3log/blob/master/src/crashhandler_unix.cpp
// functions: void restoreFatalHandlingToDefault()
// void overrideSetupSignals(const std::map<int, std::string> overrideSignals)
// void restoreSignalHandler(int signal_number)
//
// It would require some adding of unit test (see the test below)
// and good Windows experience. Since I am not currently working much on the Windows
// side I am reaching out to the community for this one:
//
//
// For the test to work the following code should be added in this test
//void customSignalHandler(int signal_number) {
// lastEncounteredSignal.store(signal_number);
// ++customFatalCounter;
//}
//
//void installCustomSIGTERM() {
// ASSERT_TRUE(SIG_ERR != signal(SIGTERM, customSignalHandler));
//}
TEST(LogTest, FatalSIGTERM__UsingCustomHandler) {
RestoreFileLogger logger(log_directory);
g_fatal_counter.store(0);
g3::setFatalPreLoggingHook(fatalCounter);
installCustomSIGTERM();
g3::overrideSetupSignals({{SIGABRT, "SIGABRT"}, {SIGFPE, "SIGFPE"}, {SIGILL, "SIGILL"}});
installCustomSIGTERM();
EXPECT_EQ(customFatalCounter.load(), size_t{0});
EXPECT_EQ(lastEncounteredSignal.load(), 0);
raise(SIGTERM);
logger.reset();
EXPECT_EQ(g_fatal_counter.load(), size_t{0});
EXPECT_EQ(lastEncounteredSignal.load(), SIGTERM);
EXPECT_EQ(customFatalCounter.load(), size_t{1});
}
TEST(LogTest, FatalSIGTERM__VerifyingOldCustomHandler) {
RestoreFileLogger logger(log_directory);
g_fatal_counter.store(0);
customFatalCounter.store(0);
lastEncounteredSignal.store(0);
g3::setFatalPreLoggingHook(fatalCounter);
installCustomOldSIGTERM();
g3::overrideSetupSignals({{SIGABRT, "SIGABRT"}, {SIGFPE, "SIGFPE"}, {SIGILL, "SIGILL"}, {SIGTERM, "SIGTERM"}});
g3::restoreSignalHandler(SIGTERM); // revert SIGTERM installation
EXPECT_EQ(customFatalCounter.load(), size_t{0});
EXPECT_EQ(lastEncounteredSignal.load(), 0);
EXPECT_FALSE(oldSigTermCheck.load());
raise(SIGTERM);
logger.reset();
EXPECT_EQ(g_fatal_counter.load(), size_t{0});
EXPECT_EQ(lastEncounteredSignal.load(), SIGTERM);
EXPECT_TRUE(oldSigTermCheck.load());
}
#endif // DISABLE_FATAL_SIGNALHANDLING
#endif // !(defined(WIN32) || defined(_WIN32) || defined(__WIN32__))
TEST(LogTest, LOG_preFatalLogging_hook) {
{
RestoreFileLogger logger(log_directory);
ASSERT_FALSE(mockFatalWasCalled());
g_fatal_counter.store(0);
g3::setFatalPreLoggingHook(fatalCounter);
LOG(FATAL) << "This message is fatal";
logger.reset();
EXPECT_EQ(g_fatal_counter.load(), size_t{1});
}
{
// Now with no fatal pre-logging-hook
RestoreFileLogger logger(log_directory);
ASSERT_FALSE(mockFatalWasCalled());
g_fatal_counter.store(0);
LOG(FATAL) << "This message is fatal";
EXPECT_EQ(g_fatal_counter.load(), size_t{0});
}
}
TEST(LogTest, LOG_FATAL) {
RestoreFileLogger logger(log_directory);
ASSERT_FALSE(mockFatalWasCalled());
LOG(FATAL) << "This message is fatal";
EXPECT_TRUE(mockFatalWasCalled());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(mockFatalMessage(), "This message is fatal"))
<< "\ncontent: [[" << mockFatalMessage() << "]]";
EXPECT_TRUE(verifyContent(mockFatalMessage(), "FATAL"));
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(file_content, "This message is fatal"));
EXPECT_TRUE(verifyContent(file_content, "FATAL"));
EXPECT_TRUE(verifyContent(file_content, "EXIT trigger caused by "));
}
TEST(LogTest, LOGF_IF__FATAL) {
RestoreFileLogger logger(log_directory);
EXPECT_FALSE(mockFatalWasCalled());
LOGF_IF(FATAL, (2 < 3), "This message %s be worse", "could");
EXPECT_TRUE(mockFatalWasCalled());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by ")) << "\n"
<< mockFatalMessage();
EXPECT_TRUE(verifyContent(mockFatalMessage(), "FATAL"));
EXPECT_TRUE(verifyContent(mockFatalMessage(), "This message could be worse"));
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(file_content, "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(file_content, "FATAL"));
EXPECT_TRUE(verifyContent(file_content, "This message could be worse"));
}
TEST(LogTest, LOG_IF__FATAL) {
RestoreFileLogger logger(log_directory);
LOG_IF(WARNING, (0 != t_info.compare(t_info))) << "This message should NOT be written";
EXPECT_FALSE(mockFatalWasCalled());
LOG_IF(FATAL, (0 != t_info.compare(t_info2))) << "This message should throw. xyz ";
EXPECT_TRUE(mockFatalWasCalled());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(mockFatalMessage(), "FATAL"));
EXPECT_TRUE(verifyContent(mockFatalMessage(), "This message should throw. xyz "));
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(file_content, "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(file_content, "FATAL"));
EXPECT_TRUE(verifyContent(file_content, "This message should throw. xyz "));
}
TEST(LogTest, LOG_IF__FATAL__NO_THROW) {
RestoreFileLogger logger(log_directory);
LOG_IF(FATAL, (2 > 3)) << "This message%sshould NOT throw";
ASSERT_FALSE(mockFatalWasCalled());
}
// CHECK_F
TEST(CheckTest, CHECK_F__thisWILL_PrintErrorMsg) {
RestoreFileLogger logger(log_directory);
EXPECT_TRUE(mockFatalMessage().empty());
EXPECT_FALSE(mockFatalWasCalled());
CHECK(1 == 2);
EXPECT_FALSE(mockFatalMessage().empty());
EXPECT_TRUE(mockFatalWasCalled());
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(file_content, "CONTRACT")) << "**** " << mockFatalMessage();
}
TEST(CHECK_F_Test, CHECK_F__thisWILL_PrintErrorMsg) {
RestoreFileLogger logger(log_directory);
std::string msg = "This message is added to throw %s and %s";
std::string arg1 = "message";
std::string arg3 = "log";
CHECK_F(1 >= 2, msg.c_str(), arg1.c_str(), arg3.c_str());
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(file_content, "CONTRACT"));
}
TEST(CHECK_Test, CHECK__thisWILL_PrintErrorMsg) {
RestoreFileLogger logger(log_directory);
std::string msg = "This message is added to throw message and log";
CHECK(1 >= 2) << msg;
logger.reset();
std::string file_content = readFileToText(logger.logFile());
EXPECT_TRUE(verifyContent(mockFatalMessage(), "EXIT trigger caused by "));
EXPECT_TRUE(verifyContent(file_content, "CONTRACT"));
EXPECT_TRUE(verifyContent(file_content, msg));
}
TEST(CHECK, CHECK_ThatWontThrow) {
RestoreFileLogger logger(log_directory);
std::string msg = "This %s should never appear in the %s";
std::string msg3 = "This message should never appear in the log";
CHECK(1 == 1);
CHECK_F(1 == 1, msg.c_str(), "message", "log");
logger.reset();
EXPECT_FALSE(mockFatalWasCalled());
std::string file_content = readFileToText(logger.logFile());
EXPECT_FALSE(verifyContent(file_content, msg3));
EXPECT_FALSE(verifyContent(mockFatalMessage(), msg3));
}
TEST(CHECK, CHECK_runtimeError) {
RestoreFileLogger logger(log_directory);
g3::setFatalExitHandler([](g3::FatalMessagePtr msg) {
throw std::runtime_error("fatal test handler");
});
class dynamic_int_array {
std::unique_ptr<int[]> data_;
const int size_;
public:
explicit dynamic_int_array(int size) :
data_{std::make_unique<int[]>(size)},
size_(size) {}
int& at(int i) {
CHECK(i < size_);
// unreachable if i >= size_
return data_[i];
}
};
dynamic_int_array arr{3};
EXPECT_THROW(arr.at(3) = 1, std::runtime_error);
}
// see also test_io -- AddNonFatal
TEST(CustomLogLevels, AddFatal) {
RestoreFileLogger logger(log_directory);
const LEVELS DEADLY{FATAL.value + 1, {"DEADLY"}};
EXPECT_TRUE(g3::internal::wasFatal(DEADLY));
g_fatal_counter.store(0);
ASSERT_FALSE(mockFatalWasCalled());
g3::setFatalPreLoggingHook(fatalCounter);
#ifdef G3_DYNAMIC_LOGGING
g3::only_change_at_initialization::addLogLevel(DEADLY, true);
#endif
// clang-format off
LOG(DEADLY) << "Testing my own custom level"; auto line = __LINE__;
// clang-format on
logger.reset();
ASSERT_TRUE(mockFatalWasCalled());
EXPECT_EQ(size_t{1}, g_fatal_counter.load());
std::string file_content = readFileToText(logger.logFile());
std::string expected;
expected += "DEADLY [test_fatal.cpp->" + std::string(G3LOG_PRETTY_FUNCTION) + ":" + std::to_string(line);
EXPECT_TRUE(verifyContent(file_content, expected)) << file_content
<< "\n\nExpected: \n"
<< expected;
g_fatal_counter.store(0); // restore
}