test_io.cpp

/** ==========================================================================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;

/// THIS MUST BE THE FIRST UNIT TEST TO RUN! If any unit test run before this
/// one then it could fail. For dynamic levels all levels are turned on only AT
/// instantiation so we do different test for dynamic logging levels
///
/// TODO : (gtest issue)
///Move out to separate unit test binary to ensure reordering of tests does not happen
#ifdef G3_DYNAMIC_LOGGING
TEST(Initialization, No_Logger_Initialized___LevelsAreONByDefault) {
   EXPECT_FALSE(g3::internal::isLoggingInitialized());
   EXPECT_TRUE(g3::logLevel(G3LOG_DEBUG));
   EXPECT_TRUE(g3::logLevel(INFO));
   EXPECT_TRUE(g3::logLevel(WARNING));
   EXPECT_TRUE(g3::logLevel(FATAL));
   EXPECT_EQ(G3LOG_DEBUG.value, 100);
   EXPECT_EQ(INFO.value, 300);
   EXPECT_EQ(WARNING.value, 500);
   EXPECT_EQ(FATAL.value, 1000);
   EXPECT_EQ(g3::internal::CONTRACT.value, 2000);
}

TEST(Initialization, No_Logger_Initialized___Expecting_LOG_calls_to_be_Still_OKish) {
   EXPECT_FALSE(g3::internal::isLoggingInitialized());
   EXPECT_TRUE(g3::logLevel(INFO));
   EXPECT_TRUE(g3::logLevel(FATAL));
   EXPECT_TRUE(g3::logLevel(G3LOG_DEBUG));
   EXPECT_TRUE(g3::logLevel(WARNING));
   std::string err_msg1 = "Hey. I am not instantiated but I still should not crash. (I am g3log)";
   std::string err_msg3_ignored = "This uninitialized message should be ignored";
   try {
      LOG(INFO) << err_msg1;          // nothing happened. level not ON
      LOG(INFO) << err_msg3_ignored;  // nothing happened. level not ON

   } catch (std::exception& e) {
      ADD_FAILURE() << "Should never have thrown even if it is not instantiated. Ignored exception:  " << e.what();
   }

   RestoreFileLogger logger(log_directory);  // now instantiate the logger

   std::string good_msg1 = "This message could have pulled in the uninitialized_call message";
   LOG(INFO) << good_msg1;
   auto content = logger.resetAndRetrieveContent();  // this synchronizes with the LOG(INFO) call if debug level would be ON.
   ASSERT_TRUE(verifyContent(content, err_msg1)) << "Content: [" << content << "]";
   ASSERT_FALSE(verifyContent(content, err_msg3_ignored)) << "Content: [" << content << "]";
   ASSERT_TRUE(verifyContent(content, good_msg1)) << "Content: [" << content << "]";
}
#else
TEST(Initialization, No_Logger_Initialized___Expecting_LOG_calls_to_be_Still_OKish) {
   EXPECT_FALSE(g3::internal::isLoggingInitialized());
   EXPECT_TRUE(g3::logLevel(INFO));
   EXPECT_TRUE(g3::logLevel(FATAL));
   EXPECT_TRUE(g3::logLevel(G3LOG_DEBUG));
   EXPECT_TRUE(g3::logLevel(WARNING));
   std::string err_msg1 = "Hey. I am not instantiated but I still should not crash. (I am g3log)";
   std::string err_msg3_ignored = "This uninitialized message should be ignored";

   try {
      LOG(INFO) << err_msg1;
      LOG(INFO) << err_msg3_ignored;

   } catch (std::exception& e) {
      ADD_FAILURE() << "Should never have thrown even if it is not instantiated: " << e.what();
   }

   RestoreFileLogger logger(log_directory);  // now instantiate the logger

   std::string good_msg1 = "This message will pull in also the uninitialized_call message";
   LOG(INFO) << good_msg1;
   auto content = logger.resetAndRetrieveContent();  // this synchronizes with the LOG(INFO) call.
   ASSERT_TRUE(verifyContent(content, err_msg1)) << "Content: [" << content << "]";
   ASSERT_FALSE(verifyContent(content, err_msg3_ignored)) << "Content: [" << content << "]";
   ASSERT_TRUE(verifyContent(content, good_msg1)) << "Content: [" << content << "]";
}
#endif  // #ifdef G3_DYNAMIC_LOGGING

TEST(Basics, Levels_StdFind) {
   std::vector<LEVELS> levels = {INFO, WARNING, FATAL};
   auto info = INFO;
   auto warning = WARNING;
   auto debug = DEBUG;
   auto found_info = std::find(levels.begin(), levels.end(), info);
   EXPECT_TRUE(found_info != levels.end());

   bool wasFound = (levels.end() != std::find(levels.begin(), levels.end(), info));
   EXPECT_TRUE(wasFound);

   auto wasNotFound = (levels.end() == std::find(levels.begin(), levels.end(), debug));
   EXPECT_TRUE(wasNotFound);

   auto foundWarningIterator = std::find(levels.begin(), levels.end(), WARNING);
   EXPECT_TRUE(foundWarningIterator != levels.end());

   foundWarningIterator = std::find(levels.begin(), levels.end(), warning);
   EXPECT_TRUE(foundWarningIterator != levels.end());

   auto wasNotFoundIterator = std::find(levels.begin(), levels.end(), DEBUG);
   EXPECT_FALSE(wasNotFoundIterator != levels.end());
}

TEST(Basics, Levels_Operator) {
   auto info = INFO;
   auto warning = WARNING;
   EXPECT_NE(INFO, WARNING);
   EXPECT_EQ(info, INFO);
   EXPECT_TRUE(INFO == INFO);
   EXPECT_FALSE(info == WARNING);
   EXPECT_TRUE(info != WARNING);
   EXPECT_FALSE(info != INFO);
}

TEST(Basics, Shutdown) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG(INFO) << "First message buffered, then flushed";
      LOG(INFO) << "Second message still in the buffer";
      LOG(INFO) << "Not yet shutdown. This message should make it";
      logger.reset();  // force flush of logger (which will trigger a shutdown)
      LOG(INFO) << "Logger is shutdown,. this message will not make it (but it's safe to try)";
      file_content = readFileToText(logger.logFile());  // logger is already reset
      SCOPED_TRACE("LOG_INFO");                         // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, "First message buffered, then flushed"));
   EXPECT_TRUE(verifyContent(file_content, "Second message still in the buffer"));
   EXPECT_TRUE(verifyContent(file_content, "Not yet shutdown. This message should make it"));
   EXPECT_FALSE(verifyContent(file_content, "Logger is shutdown,. this message will not make it (but it's safe to try)"));
}

TEST(Basics, Shutdownx2) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG(INFO) << "Not yet shutdown. This message should make it";
      logger.reset();                   // force flush of logger (which will trigger a shutdown)
      g3::internal::shutDownLogging();  // already called in reset, but safe to call again
      LOG(INFO) << "Logger is shutdown,. this message will not make it (but it's safe to try)";
      file_content = readFileToText(logger.logFile());  // already reset
      SCOPED_TRACE("LOG_INFO");                         // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, "Not yet shutdown. This message should make it"));
   EXPECT_FALSE(verifyContent(file_content, "Logger is shutdown,. this message will not make it (but it's safe to try)"));
}

TEST(Basics, ShutdownActiveLogger) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG(INFO) << "Not yet shutdown. This message should make it";
      EXPECT_TRUE(g3::internal::shutDownLoggingForActiveOnly(logger._scope->get()));
      LOG(INFO) << "Logger is shutdown,. this message will not make it (but it's safe to try)";
      file_content = logger.resetAndRetrieveContent();
      SCOPED_TRACE("LOG_INFO");  // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, "Not yet shutdown. This message should make it")) << "\n\n\n***************************\n"
                                                                                             << file_content;
   EXPECT_FALSE(verifyContent(file_content, "Logger is shutdown,. this message will not make it (but it's safe to try)"));
}

TEST(Basics, DoNotShutdownActiveLogger) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG(INFO) << "Not yet shutdown. This message should make it";
      std::unique_ptr<g3::LogWorker> duplicateLogWorker{g3::LogWorker::createLogWorker()};
      EXPECT_FALSE(g3::internal::shutDownLoggingForActiveOnly(duplicateLogWorker.get()));
      LOG(INFO) << "Logger is (NOT) shutdown,. this message WILL make it";
      file_content = logger.resetAndRetrieveContent();
      SCOPED_TRACE("LOG_INFO");  // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, "Not yet shutdown. This message should make it"));
   EXPECT_TRUE(verifyContent(file_content, "Logger is (NOT) shutdown,. this message WILL make it")) << file_content;
}

TEST(LOGTest, LOG) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      EXPECT_TRUE(g3::logLevel(INFO));
      EXPECT_TRUE(g3::logLevel(FATAL));
      LOG(INFO) << "test LOG(INFO)";
      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
      SCOPED_TRACE("LOG_INFO");  // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, "test LOG(INFO)"));
   EXPECT_TRUE(g3::logLevel(INFO));
   EXPECT_TRUE(g3::logLevel(FATAL));
}

// printf-type log

TEST(LogTest, LOG_F) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      std::cout << "logfilename: " << logger.logFile() << std::flush << std::endl;

      LOGF(INFO, std::string(t_info + "%d").c_str(), 123);
      LOGF(G3LOG_DEBUG, std::string(t_debug + "%f").c_str(), 1.123456);
      LOGF(WARNING, std::string(t_warning + "%s").c_str(), "yello");
      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
      SCOPED_TRACE("LOG_INFO");  // Scope exit be prepared for destructor failure
   }
   ASSERT_TRUE(verifyContent(file_content, t_info2));
   ASSERT_TRUE(verifyContent(file_content, t_debug3));
   ASSERT_TRUE(verifyContent(file_content, t_warning3));
}

// stream-type log
TEST(LogTest, LOG) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG(INFO) << t_info << 123;
      LOG(G3LOG_DEBUG) << t_debug << std::setprecision(7) << 1.123456f;
      LOG(WARNING) << t_warning << "yello";
      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
      SCOPED_TRACE("LOG_INFO");  // Scope exit be prepared for destructor failure
   }
   ASSERT_TRUE(verifyContent(file_content, t_info2));
   ASSERT_TRUE(verifyContent(file_content, t_debug3));
   ASSERT_TRUE(verifyContent(file_content, t_warning3));
}

TEST(LogTest, LOG_after_if) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      if (false == file_content.empty())
         LOG(INFO) << "This-should-NOT-show-up";
      else
         LOG(INFO) << "This-should-show-up";

      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
   }

   ASSERT_FALSE(verifyContent(file_content, "This-should-NOT-show-up"));
   ASSERT_TRUE(verifyContent(file_content, "This-should-show-up"));
}

TEST(LogTest, LOG_after_if_with_parentesis) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      if (false == file_content.empty()) {
         LOG(INFO) << "This-should-NOT-show-up";
      } else {
         LOG(INFO) << "This-should-show-up";
      }

      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
   }

   ASSERT_FALSE(verifyContent(file_content, "This-should-NOT-show-up"));
   ASSERT_TRUE(verifyContent(file_content, "This-should-show-up"));
}

TEST(LogTest, LOG_F_IF) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOGF_IF(INFO, (2 == 2), std::string(t_info + "%d").c_str(), 123);
      LOGF_IF(G3LOG_DEBUG, (2 != 2), std::string(t_debug + "%f").c_str(), 1.123456);
      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
      SCOPED_TRACE("LOG_IF");  // Scope exit be prepared for destructor failure
   }
   ASSERT_TRUE(verifyContent(file_content, t_info2));
   ASSERT_FALSE(verifyContent(file_content, t_debug3));
}

TEST(LogTest, LOG_IF) {
   std::string file_content;
   {
      RestoreFileLogger logger(log_directory);
      LOG_IF(INFO, (2 == 2)) << t_info << 123;
      LOG_IF(G3LOG_DEBUG, (2 != 2)) << t_debug << std::setprecision(7) << 1.123456f;
      logger.reset();  // force flush of logger
      file_content = readFileToText(logger.logFile());
      SCOPED_TRACE("LOG_IF");  // Scope exit be prepared for destructor failure
   }
   EXPECT_TRUE(verifyContent(file_content, t_info2));
   EXPECT_FALSE(verifyContent(file_content, t_debug3));
}

TEST(CustomLogLevels, AddANonFatal) {
   RestoreFileLogger logger(log_directory);
   const LEVELS MYINFO{WARNING.value + 1, {"MY_INFO_LEVEL"}};
#ifdef G3_DYNAMIC_LOGGING
   g3::only_change_at_initialization::addLogLevel(MYINFO, true);
#endif
   // clang-format off
   LOG(MYINFO) << "Testing my own custom level"; auto line = __LINE__;
   // clang-format on
   logger.reset();
   std::string file_content = readFileToText(logger.logFile());
   std::string expected;
   expected += "MY_INFO_LEVEL [test_io.cpp->" + std::string(G3LOG_PRETTY_FUNCTION) + ":" + std::to_string(line);
   EXPECT_TRUE(verifyContent(file_content, expected)) << file_content
                                                      << "\n\nExpected: \n"
                                                      << expected;
}

#ifdef G3_DYNAMIC_LOGGING
namespace {
   // Restore dynamic levels if turned off

   struct RestoreDynamicLoggingLevels {
      RestoreDynamicLoggingLevels(){};
      ~RestoreDynamicLoggingLevels() {
         g3::only_change_at_initialization::reset();
         g3::only_change_at_initialization::addLogLevel(G3LOG_DEBUG, false);
         g3::only_change_at_initialization::addLogLevel(INFO, false);
         g3::only_change_at_initialization::addLogLevel(WARNING, false);
         g3::only_change_at_initialization::addLogLevel(FATAL, false);
      }
   };
}  // namespace

TEST(CustomLogLevels, AddANonFatal__ThenReset) {
   RestoreFileLogger logger(log_directory);
   const LEVELS MYINFO{WARNING.value + 2, {"MY_INFO_LEVEL"}};
   EXPECT_FALSE(g3::logLevel(MYINFO));
   g3::only_change_at_initialization::addLogLevel(MYINFO, true);
   EXPECT_TRUE(g3::logLevel(MYINFO));
   g3::only_change_at_initialization::reset();
   EXPECT_FALSE(g3::logLevel(MYINFO));
}

TEST(CustomLogLevels, AddANonFatal__DidNotAddItToEnabledValue1) {
   RestoreFileLogger logger(log_directory);
   const LEVELS MYINFO{WARNING.value + 2, {"MY_INFO_LEVEL"}};
   // clang-format off
   LOG(MYINFO) << "Testing my own custom level"; auto line = __LINE__;
   // clang-format on
   logger.reset();

   std::string file_content = readFileToText(logger.logFile());
   std::string expected;
   expected += "MY_INFO_LEVEL [test_io.cpp:" + std::to_string(line);
   EXPECT_FALSE(verifyContent(file_content, expected)) << file_content
                                                       << "\n\nExpected: \n"
                                                       << expected << "\nLevels:\n"
                                                       << g3::log_levels::to_string();
}

TEST(CustomLogLevels, AddANonFatal__DidNotAddItToEnabledValue2) {
   RestoreFileLogger logger(log_directory);
   const LEVELS MYINFO{WARNING.value + 2, {"MY_INFO_LEVEL"}};
   EXPECT_FALSE(g3::logLevel(MYINFO));
   // clang-format off
   LOG(MYINFO) << "Testing my own custom level"; auto line = __LINE__;
   // clang-format on
   logger.reset();

   std::string file_content = readFileToText(logger.logFile());
   std::string expected;
   expected += "MY_INFO_LEVEL [test_io.cpp:" + std::to_string(line);
   EXPECT_FALSE(verifyContent(file_content, expected)) << file_content
                                                       << "\n\nExpected: \n"
                                                       << expected << "\nLevels:\n"
                                                       << g3::log_levels::to_string();
}

TEST(CustomLogLevels, AddANonFatal__DidtAddItToEnabledValue) {
   RestoreFileLogger logger(log_directory);
   const LEVELS MYINFO{WARNING.value + 3, {"MY_INFO_LEVEL"}};
   g3::only_change_at_initialization::addLogLevel(MYINFO, true);
   // clang-format off
   LOG(MYINFO) << "Testing my own custom level"; auto line = __LINE__;
   // clang-format on
   logger.reset();
   std::string file_content = readFileToText(logger.logFile());
   std::string expected;
   expected += "MY_INFO_LEVEL [test_io.cpp->" + std::string(G3LOG_PRETTY_FUNCTION) + ":" + std::to_string(line);
   EXPECT_TRUE(verifyContent(file_content, expected)) << file_content
                                                      << "\n\nExpected: \n"
                                                      << expected;
}

TEST(DynamicLogging, DynamicLogging_IS_ENABLED) {
   RestoreDynamicLoggingLevels raiiLevelRestore;

   ASSERT_TRUE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_TRUE(g3::logLevel(INFO));
   ASSERT_TRUE(g3::logLevel(WARNING));
   ASSERT_TRUE(g3::logLevel(FATAL));  // Yes FATAL can be turned off. Thereby rendering it ineffective.
   g3::only_change_at_initialization::addLogLevel(G3LOG_DEBUG, false);
   ASSERT_FALSE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_TRUE(g3::logLevel(INFO));
   ASSERT_TRUE(g3::logLevel(WARNING));
   ASSERT_TRUE(g3::logLevel(FATAL));  // Yes FATAL can be turned off. Thereby rendering it ineffective.

   g3::only_change_at_initialization::addLogLevel(INFO, false);
   ASSERT_FALSE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_FALSE(g3::logLevel(INFO));
   ASSERT_TRUE(g3::logLevel(WARNING));
   ASSERT_TRUE(g3::logLevel(FATAL));  // Yes FATAL can be turned off. Thereby rendering it ineffective.

   g3::only_change_at_initialization::addLogLevel(WARNING, false);
   ASSERT_FALSE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_FALSE(g3::logLevel(INFO));
   ASSERT_FALSE(g3::logLevel(WARNING));
   ASSERT_TRUE(g3::logLevel(FATAL));  // Yes FATAL can be turned off. Thereby rendering it ineffective.

   g3::only_change_at_initialization::addLogLevel(FATAL, false);
   ASSERT_FALSE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_FALSE(g3::logLevel(INFO));
   ASSERT_FALSE(g3::logLevel(WARNING));
   ASSERT_FALSE(g3::logLevel(FATAL));  // Yes FATAL can be turned off. Thereby rendering it ineffective.
}
TEST(DynamicLogging, DynamicLogging_No_Logs_If_Disabled) {
   {
      RestoreFileLogger logger(log_directory);
      ASSERT_TRUE(g3::logLevel(G3LOG_DEBUG));
      ASSERT_TRUE(g3::logLevel(INFO));
      ASSERT_TRUE(g3::logLevel(WARNING));
      ASSERT_TRUE(g3::logLevel(FATAL));
   }

   RestoreDynamicLoggingLevels raiiLevelRestore;

   std::string msg_debugOn = "This %s SHOULD  appear in the %s";
   std::string msg_debugOff = "This message should never appear in the log";
   try {
      {
         RestoreFileLogger logger(log_directory);
         LOGF(G3LOG_DEBUG, msg_debugOn.c_str(), "msg", "log");
         auto content = logger.resetAndRetrieveContent();
         ASSERT_TRUE(verifyContent(content, "This msg SHOULD  appear in the log")) << "Content: [" << content << "]";
      }

      {
         RestoreFileLogger logger(log_directory);
         g3::only_change_at_initialization::addLogLevel(G3LOG_DEBUG, false);
         EXPECT_FALSE(g3::logLevel(G3LOG_DEBUG));
         LOG(G3LOG_DEBUG) << msg_debugOff;
         auto content = logger.resetAndRetrieveContent();
         ASSERT_FALSE(verifyContent(content, "This message should never appear in the log")) << "Content: [" << content << "]";
      }

   } catch (std::exception const& e) {
      ADD_FAILURE() << "Should never have thrown: " << e.what();
   }
}
TEST(DynamicLogging, DynamicLogging_No_Fatal_If_Disabled) {
   RestoreFileLogger logger(log_directory);
   RestoreDynamicLoggingLevels raiiLevelRestore;
   ASSERT_TRUE(g3::logLevel(G3LOG_DEBUG));
   ASSERT_TRUE(g3::logLevel(INFO));
   ASSERT_TRUE(g3::logLevel(WARNING));
   ASSERT_TRUE(g3::logLevel(FATAL));

   std::string msg1 = "This IS fatal (not crash, since it is unit test";

   LOG(FATAL) << msg1;
   EXPECT_TRUE(mockFatalWasCalled());
   EXPECT_FALSE(mockFatalMessage().empty());
   EXPECT_TRUE(verifyContent(mockFatalMessage(), msg1));

   clearMockFatal();
   EXPECT_FALSE(mockFatalWasCalled());

   g3::only_change_at_initialization::addLogLevel(FATAL, false);
   std::string msg3 = "This is NOT fatal (not crash, since it is unit test. FATAL is disabled";
   LOG(FATAL) << msg3;
   EXPECT_FALSE(mockFatalWasCalled());
   EXPECT_TRUE(mockFatalMessage().empty());
}

TEST(DynamicLogging, DynamicLogging_Check_WillAlsoBeTurnedOffWhen_Fatal_Is_Disabled) {
   RestoreFileLogger logger(log_directory);
   RestoreDynamicLoggingLevels raiiLevelRestore;
   ASSERT_TRUE(g3::logLevel(FATAL));

   std::string msg1 = "dummy message to check if CHECK worked when fatal is enabled";
   std::string msg3 = "dummy message to check if CHECK worked when fatal is disabled";
   LOG(FATAL) << msg1;
   EXPECT_TRUE(mockFatalWasCalled());
   EXPECT_TRUE(verifyContent(mockFatalMessage(), msg1));

   clearMockFatal();
   EXPECT_FALSE(mockFatalWasCalled());

   // Disable also CHECK calls
   g3::only_change_at_initialization::addLogLevel(FATAL, false);
   ASSERT_FALSE(g3::logLevel(FATAL));
   LOG(FATAL) << msg3;
   EXPECT_FALSE(mockFatalWasCalled());
}

#else
TEST(DynamicLogging, DynamicLogging_IS_NOT_ENABLED) {
   ASSERT_TRUE(g3::logLevel(G3LOG_DEBUG));
   //g3::addLogLevel(G3LOG_DEBUG, false);  this line will not compile since G3_DYNAMIC_LOGGING is not enabled. Kept for show.
   //ASSERT_FALSE(g3::logLevel(G3LOG_DEBUG));
}
#endif  // Dynamic logging