blob: 68ff4630e61bafd5833ae1b3adcd06f336b2cf4a [file] [log] [blame]
//===-- Unittests for difftime --------------------------------------------===//
//
// 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 "src/__support/FPUtil/FPBits.h"
#include "src/time/difftime.h"
#include "src/time/time_utils.h"
#include "test/UnitTest/ErrnoSetterMatcher.h"
#include "test/UnitTest/Test.h"
using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
using LIBC_NAMESPACE::time_utils::TimeConstants;
TEST(LlvmLibcDifftime, SmokeTest) {
time_t t1_seconds = TimeConstants::SECONDS_PER_HOUR;
time_t t2_seconds = 0;
LIBC_NAMESPACE::fputil::FPBits<long double> expected_fp =
LIBC_NAMESPACE::fputil::FPBits<long double>();
expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(
static_cast<long double>(t1_seconds));
double result = LIBC_NAMESPACE::difftime(t1_seconds, t2_seconds);
LIBC_NAMESPACE::fputil::FPBits<long double> actual_fp =
LIBC_NAMESPACE::fputil::FPBits<long double>();
actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(
static_cast<long double>(result));
EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval());
EXPECT_EQ(actual_fp.is_neg(), expected_fp.is_neg());
EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent());
EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa());
}