1 //===- llvm/unittest/Support/TimeValueTest.cpp - Time Value tests ---------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "gtest/gtest.h" 11 #include "llvm/Support/TimeValue.h" 12 #include <time.h> 13 14 using namespace llvm; 15 namespace { 16 17 TEST(TimeValue, time_t) { 18 sys::TimeValue now = sys::TimeValue::now(); 19 time_t now_t = time(nullptr); 20 EXPECT_TRUE(std::abs(static_cast<long>(now_t - now.toEpochTime())) < 2); 21 } 22 23 TEST(TimeValue, Win32FILETIME) { 24 uint64_t epoch_as_filetime = 0x19DB1DED53E8000ULL; 25 uint32_t ns = 765432100; 26 sys::TimeValue epoch; 27 28 // FILETIME has 100ns of intervals. 29 uint64_t ft1970 = epoch_as_filetime + ns / 100; 30 epoch.fromWin32Time(ft1970); 31 32 // The "seconds" part in Posix time may be expected as zero. 33 EXPECT_EQ(0u, epoch.toEpochTime()); 34 EXPECT_EQ(ns, static_cast<uint32_t>(epoch.nanoseconds())); 35 36 // Confirm it reversible. 37 EXPECT_EQ(ft1970, epoch.toWin32Time()); 38 } 39 40 } 41
