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//===- unittests/TimerTest.cpp - Timer tests ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Timer.h"
#include "gtest/gtest.h"
#if _WIN32
#include <windows.h>
#else
#include <time.h>
#endif
using namespace llvm;
namespace {
// FIXME: Put this somewhere in Support, it's also used in LockFileManager.
void SleepMS() {
#if _WIN32
Sleep(1);
#else
struct timespec Interval;
Interval.tv_sec = 0;
Interval.tv_nsec = 1000000;
#if defined(__MVS__)
long Microseconds = (Interval.tv_nsec + 999) / 1000;
usleep(Microseconds);
#else
nanosleep(&Interval, nullptr);
#endif
#endif
}
TEST(Timer, Additivity) {
Timer T1("T1", "T1");
EXPECT_TRUE(T1.isInitialized());
T1.startTimer();
T1.stopTimer();
auto TR1 = T1.getTotalTime();
T1.startTimer();
SleepMS();
T1.stopTimer();
auto TR2 = T1.getTotalTime();
EXPECT_LT(TR1, TR2);
}
TEST(Timer, CheckIfTriggered) {
Timer T1("T1", "T1");
EXPECT_FALSE(T1.hasTriggered());
T1.startTimer();
EXPECT_TRUE(T1.hasTriggered());
T1.stopTimer();
EXPECT_TRUE(T1.hasTriggered());
T1.clear();
EXPECT_FALSE(T1.hasTriggered());
}
} // end anon namespace
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