87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
#include "doctest/doctest.h"
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#include "misc/TestUtilities.h"
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#include "quill/Backend.h"
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#include "quill/Frontend.h"
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#include "quill/LogMacros.h"
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#include "quill/sinks/FileSink.h"
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#include <cstdio>
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#include <string>
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#include <thread>
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#include <vector>
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using namespace quill;
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/***/
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TEST_CASE("log_flush_with_soft_limit_test")
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{
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static constexpr char const* filename = "log_flush_with_soft_limit_test.log";
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static std::string const logger_name = "logger";
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static size_t constexpr soft_limit = 100;
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// make sure we at least x 100 the soft limit to make sure we are testing what we want
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// to not reduce this number. Increasing is fine
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static size_t constexpr number_of_messages = soft_limit * 100;
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static constexpr size_t number_of_threads = 4;
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// When hitting the transit_events_soft_limit several events are processed in the backend at the
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// same time If all of them are processed there is a chance to miss messages that where in the
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// queues but never buffered result in example issuing the flush_log() earlier than it should
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// Start the backend thread
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BackendOptions backend_options;
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backend_options.transit_events_soft_limit = soft_limit;
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Backend::start(backend_options);
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std::vector<std::thread> threads;
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for (size_t i = 0; i < number_of_threads; ++i)
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{
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threads.emplace_back(
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[i]() mutable
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{
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Frontend::preallocate();
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// Set writing logging to a file
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auto file_sink = Frontend::create_or_get_sink<FileSink>(
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filename,
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[]()
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{
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FileSinkConfig cfg;
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cfg.set_open_mode('w');
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cfg.set_do_fsync(true);
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return cfg;
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}(),
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FileEventNotifier{});
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Logger* logger = Frontend::create_or_get_logger(logger_name, std::move(file_sink));
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for (size_t j = 0; j < number_of_messages; ++j)
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{
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LOG_INFO(logger, "Hello from thread {} this is message {}", i, j);
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}
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});
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}
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for (auto& elem : threads)
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{
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elem.join();
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}
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Frontend::get_valid_logger()->flush_log();
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// Now check we have all messages in the file after the flush statement
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size_t const total_messages = number_of_messages * number_of_threads;
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// Read file and check
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REQUIRE_EQ(testing::file_contents(filename).size(), total_messages);
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// Wait until the backend thread stops for test stability
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Backend::stop();
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// Read file and check again, nothing else was logged
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REQUIRE_EQ(testing::file_contents(filename).size(), total_messages);
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testing::remove_file(filename);
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}
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