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unittests/Support: Add TimeValue.Win32FILETIME, corresponding to r186374.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186375 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2013-07-16 02:44:23 +00:00
parent ff8f9e58ec
commit 334f8b9b37
1 changed files with 16 additions and 0 deletions
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16
unittests/Support/TimeValueTest.cpp
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@ -20,4 +20,20 @@ TEST(TimeValue, time_t) {
EXPECT_TRUE(abs(static_cast<long>(now_t - now.toEpochTime())) < 2);
}
TEST(TimeValue, Win32FILETIME) {
uint64_t epoch_as_filetime = 0x19DB1DED53E8000ULL;
uint32_t ns = 765432100;
sys::TimeValue epoch;
// FILETIME has 100ns of intervals.
uint64_t ft1970 = epoch_as_filetime + ns / 100;
epoch.fromWin32Time(ft1970);
// The "seconds" part in Posix time may be expected as zero.
EXPECT_EQ(ns / 100, epoch.toPosixTime());
// Confirm it reversible.
EXPECT_EQ(ft1970, epoch.toWin32Time());
}
}