spdlog/tests/errors.cpp

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/*
* This content is released under the MIT License as specified in https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
*/
#include "includes.h"
#include<iostream>
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class failing_sink: public spdlog::sinks::sink
{
void log(const spdlog::details::log_msg& msg) override
{
throw std::runtime_error("some error happened during log");
}
void flush()
{}
};
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TEST_CASE("default_error_handler", "[errors]]")
{
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prepare_logdir();
std::string filename = "logs/simple_log.txt";
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auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename, true);
logger->set_pattern("%v");
#if !defined(SPDLOG_FMT_PRINTF)
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logger->info("Test message {} {}", 1);
logger->info("Test message {}", 2);
#else
logger->info("Test message %d %d", 1);
logger->info("Test message %d", 2);
#endif
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logger->flush();
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REQUIRE(file_contents(filename) == std::string("Test message 2\n"));
REQUIRE(count_lines(filename) == 1);
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}
struct custom_ex
{};
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TEST_CASE("custom_error_handler", "[errors]]")
{
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prepare_logdir();
std::string filename = "logs/simple_log.txt";
auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename, true);
logger->flush_on(spdlog::level::info);
logger->set_error_handler([=](const std::string& msg)
{
throw custom_ex();
});
logger->info("Good message #1");
#if !defined(SPDLOG_FMT_PRINTF)
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REQUIRE_THROWS_AS(logger->info("Bad format msg {} {}", "xxx"), custom_ex);
#else
REQUIRE_THROWS_AS(logger->info("Bad format msg %s %s", "xxx"), custom_ex);
#endif
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logger->info("Good message #2");
REQUIRE(count_lines(filename) == 2);
}
TEST_CASE("default_error_handler2", "[errors]]")
{
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auto logger = spdlog::create<failing_sink>("failed_logger");
logger->set_error_handler([=](const std::string& msg)
{
throw custom_ex();
});
REQUIRE_THROWS_AS(logger->info("Some message"), custom_ex);
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}
TEST_CASE("async_error_handler", "[errors]]")
{
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prepare_logdir();
std::string err_msg("log failed with some msg");
spdlog::set_async_mode(128);
std::string filename = "logs/simple_async_log.txt";
{
auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename, true);
logger->set_error_handler([=](const std::string& msg)
{
std::ofstream ofs("logs/custom_err.txt");
if (!ofs) throw std::runtime_error("Failed open logs/custom_err.txt");
ofs << err_msg;
});
logger->info("Good message #1");
#if !defined(SPDLOG_FMT_PRINTF)
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logger->info("Bad format msg {} {}", "xxx");
#else
logger->info("Bad format msg %s %s", "xxx");
#endif
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logger->info("Good message #2");
spdlog::drop("logger"); //force logger to drain the queue and shutdown
spdlog::set_sync_mode();
}
REQUIRE(count_lines(filename) == 2);
REQUIRE(file_contents("logs/custom_err.txt") == err_msg);
}
// Make sure async error handler is executed
TEST_CASE("async_error_handler2", "[errors]]")
{
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prepare_logdir();
std::string err_msg("This is async handler error message");
spdlog::set_async_mode(128);
{
auto logger = spdlog::create<failing_sink>("failed_logger");
logger->set_error_handler([=](const std::string& msg)
{
std::ofstream ofs("logs/custom_err2.txt");
if (!ofs) throw std::runtime_error("Failed open logs/custom_err2.txt");
ofs << err_msg;
});
logger->info("Hello failure");
spdlog::drop("failed_logger"); //force logger to drain the queue and shutdown
spdlog::set_sync_mode();
}
REQUIRE(file_contents("logs/custom_err2.txt") == err_msg);
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}