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#include "all.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/system/fs.h>
#include <util/system/rwlock.h>
#include <util/system/yield.h>
#include <util/memory/blob.h>
#include <util/stream/file.h>
#include <util/generic/string.h>
#include <util/generic/vector.h>
class TLogTest: public TTestBase {
UNIT_TEST_SUITE(TLogTest);
UNIT_TEST(TestFile)
UNIT_TEST(TestFormat)
UNIT_TEST(TestWrite)
UNIT_TEST(TestThreaded)
UNIT_TEST(TestThreadedWithOverflow)
UNIT_TEST(TestNoFlush)
UNIT_TEST(TestMetaFlags)
UNIT_TEST_SUITE_END();
private:
void TestFile();
void TestFormat();
void TestWrite();
void TestThreaded();
void TestThreadedWithOverflow();
void TestNoFlush();
void TestMetaFlags();
void SetUp() override;
void TearDown() override;
};
UNIT_TEST_SUITE_REGISTRATION(TLogTest);
#define LOGFILE "tmplogfile"
void TLogTest::TestFile() {
{
TLog log;
{
TLog filelog(LOGFILE);
log = filelog;
}
int v1 = 12;
unsigned v2 = 34;
double v3 = 3.0;
const char* v4 = "qwqwqw";
log.ReopenLog();
log.AddLog("some useful data %d, %u, %lf, %s\n", v1, v2, v3, v4);
}
TBlob data = TBlob::FromFileSingleThreaded(LOGFILE);
UNIT_ASSERT_EQUAL(TString((const char*)data.Begin(), data.Size()), "some useful data 12, 34, 3.000000, qwqwqw\n");
}
void TLogTest::TestThreaded() {
{
TFileLogBackend fb(LOGFILE);
TLog log(THolder(new TThreadedLogBackend(&fb)));
int v1 = 12;
unsigned v2 = 34;
double v3 = 3.0;
const char* v4 = "qwqwqw";
log.ReopenLog();
log.AddLog("some useful data %d, %u, %lf, %s\n", v1, v2, v3, v4);
}
TBlob data = TBlob::FromFileSingleThreaded(LOGFILE);
UNIT_ASSERT_EQUAL(TString((const char*)data.Begin(), data.Size()), "some useful data 12, 34, 3.000000, qwqwqw\n");
}
void TLogTest::TestThreadedWithOverflow() {
class TFakeLogBackend: public TLogBackend {
public:
TWriteGuard Guard() {
return TWriteGuard(Lock_);
}
void WriteData(const TLogRecord&) override {
TReadGuard guard(Lock_);
}
void ReopenLog() override {
TWriteGuard guard(Lock_);
}
private:
TRWMutex Lock_;
};
auto waitForFreeQueue = [](const TLog& log) {
ThreadYield();
while (log.BackEndQueueSize() > 0) {
Sleep(TDuration::MilliSeconds(1));
}
};
TFakeLogBackend fb;
{
TLog log(THolder(new TThreadedLogBackend(&fb, 2)));
auto guard = fb.Guard();
log.AddLog("first write");
waitForFreeQueue(log);
log.AddLog("second write (first in queue)");
log.AddLog("third write (second in queue)");
UNIT_ASSERT_EXCEPTION(log.AddLog("fourth write (queue overflow)"), yexception);
}
{
ui32 overflows = 0;
TLog log(THolder(new TThreadedLogBackend(&fb, 2, [&overflows] { ++overflows; })));
auto guard = fb.Guard();
log.AddLog("first write");
waitForFreeQueue(log);
log.AddLog("second write (first in queue)");
log.AddLog("third write (second in queue)");
UNIT_ASSERT_EQUAL(overflows, 0);
log.AddLog("fourth write (queue overflow)");
UNIT_ASSERT_EQUAL(overflows, 1);
}
}
void TLogTest::TestNoFlush() {
{
TFileLogBackend fb(LOGFILE);
TLog log(THolder(new TThreadedLogBackend(&fb)));
int v1 = 12;
unsigned v2 = 34;
double v3 = 3.0;
const char* v4 = "qwqwqw";
log.ReopenLogNoFlush();
log.AddLog("some useful data %d, %u, %lf, %s\n", v1, v2, v3, v4);
}
TBlob data = TBlob::FromFileSingleThreaded(LOGFILE);
UNIT_ASSERT_EQUAL(TString((const char*)data.Begin(), data.Size()), "some useful data 12, 34, 3.000000, qwqwqw\n");
}
void TLogTest::TestFormat() {
TStringStream data;
{
TLog log(THolder(new TStreamLogBackend(&data)));
log << "qw"
<< " "
<< "1234" << 1234 << " " << 12.3 << 'q' << Endl;
}
UNIT_ASSERT_EQUAL(data.Str(), "qw 12341234 12.3q\n");
}
void TLogTest::TestWrite() {
TStringStream data;
TString test;
{
TLog log(THolder(new TStreamLogBackend(&data)));
for (size_t i = 0; i < 1000; ++i) {
TVector<char> buf(i, (char)i);
test.append(buf.data(), buf.size());
log.Write(buf.data(), buf.size());
}
}
UNIT_ASSERT_EQUAL(data.Str(), test);
}
void TLogTest::TestMetaFlags() {
class TTestLogBackendStub: public TLogBackend {
public:
TTestLogBackendStub(TLogRecord::TMetaFlags& data)
: Data_(data)
{
}
void WriteData(const TLogRecord& record) override {
Data_ = record.MetaFlags;
}
void ReopenLog() override {
}
private:
TLogRecord::TMetaFlags& Data_;
};
TLogRecord::TMetaFlags metaFlags;
TLog log(MakeHolder<TTestLogBackendStub>(metaFlags));
log.Write(ELogPriority::TLOG_INFO, TString("message"), {{"key", "value"}});
TLogRecord::TMetaFlags expected{{"key", "value"}};
UNIT_ASSERT_EQUAL(metaFlags, expected);
}
void TLogTest::SetUp() {
TearDown();
}
void TLogTest::TearDown() {
NFs::Remove(LOGFILE);
}
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