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>
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");
logger->info("Test message {} {}", 1);
logger->info("Test message {}", 2);
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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}
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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);
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logger->flush_on(spdlog::level::info);
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logger->set_error_handler([=](const std::string& msg)
{
throw custom_ex();
});
logger->info("Good message #1");
REQUIRE_THROWS_AS(logger->info("Bad format msg {} {}", "xxx"), custom_ex);
logger->info("Good message #2");
REQUIRE(count_lines(filename) == 2);
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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");
logger->info("Bad format msg {} {}", "xxx");
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);
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}