1 //===- llvm/unittest/Support/TimeValueTest.cpp - Time Value tests ---------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "gtest/gtest.h"
11 #include "llvm/Support/TimeValue.h"
17 TEST(TimeValue, time_t) {
18 sys::TimeValue now = sys::TimeValue::now();
19 time_t now_t = time(NULL);
20 EXPECT_TRUE(std::abs(static_cast<long>(now_t - now.toEpochTime())) < 2);
23 TEST(TimeValue, Win32FILETIME) {
24 uint64_t epoch_as_filetime = 0x19DB1DED53E8000ULL;
25 uint32_t ns = 765432100;
28 // FILETIME has 100ns of intervals.
29 uint64_t ft1970 = epoch_as_filetime + ns / 100;
30 epoch.fromWin32Time(ft1970);
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()));
36 // Confirm it reversible.
37 EXPECT_EQ(ft1970, epoch.toWin32Time());