llvm/unittests/Support/TimerTest.cpp
2015-12-23 01:04:53 +00:00

66 lines
1.3 KiB
C++

//===- unittests/TimerTest.cpp - Timer tests ------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Timer.h"
#include "gtest/gtest.h"
#if LLVM_ON_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 LLVM_ON_WIN32
Sleep(1);
#else
struct timespec Interval;
Interval.tv_sec = 0;
Interval.tv_nsec = 1000000;
nanosleep(&Interval, nullptr);
#endif
}
TEST(Timer, Additivity) {
Timer T1("T1");
EXPECT_TRUE(T1.isInitialized());
T1.startTimer();
T1.stopTimer();
auto TR1 = T1.getTotalTime();
T1.startTimer();
SleepMS();
T1.stopTimer();
auto TR2 = T1.getTotalTime();
EXPECT_TRUE(TR1 < TR2);
}
TEST(Timer, CheckIfTriggered) {
Timer 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