39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
//===-- Unittests for difftime --------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/__support/FPUtil/FPBits.h"
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#include "src/time/difftime.h"
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#include "src/time/time_utils.h"
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#include "test/UnitTest/ErrnoSetterMatcher.h"
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#include "test/UnitTest/Test.h"
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using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
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using LIBC_NAMESPACE::time_utils::TimeConstants;
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TEST(LlvmLibcDifftime, SmokeTest) {
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time_t t1_seconds = TimeConstants::SECONDS_PER_HOUR;
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time_t t2_seconds = 0;
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LIBC_NAMESPACE::fputil::FPBits<long double> expected_fp =
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LIBC_NAMESPACE::fputil::FPBits<long double>();
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expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(
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static_cast<long double>(t1_seconds));
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double result = LIBC_NAMESPACE::difftime(t1_seconds, t2_seconds);
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LIBC_NAMESPACE::fputil::FPBits<long double> actual_fp =
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LIBC_NAMESPACE::fputil::FPBits<long double>();
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actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>(
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static_cast<long double>(result));
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EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval());
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EXPECT_EQ(actual_fp.is_neg(), expected_fp.is_neg());
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EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent());
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EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa());
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}
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