36 lines · cpp
1//===-- Unittests for difftime --------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/__support/FPUtil/FPBits.h"10#include "src/time/difftime.h"11#include "src/time/time_constants.h"12#include "test/UnitTest/ErrnoSetterMatcher.h"13#include "test/UnitTest/Test.h"14 15TEST(LlvmLibcDifftime, SmokeTest) {16 time_t t1_seconds = LIBC_NAMESPACE::time_constants::SECONDS_PER_HOUR;17 time_t t2_seconds = 0;18 19 LIBC_NAMESPACE::fputil::FPBits<long double> expected_fp =20 LIBC_NAMESPACE::fputil::FPBits<long double>();21 expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(22 static_cast<long double>(t1_seconds));23 24 double result = LIBC_NAMESPACE::difftime(t1_seconds, t2_seconds);25 26 LIBC_NAMESPACE::fputil::FPBits<long double> actual_fp =27 LIBC_NAMESPACE::fputil::FPBits<long double>();28 actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(29 static_cast<long double>(result));30 31 EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval());32 EXPECT_EQ(actual_fp.is_neg(), expected_fp.is_neg());33 EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent());34 EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa());35}36