112204429SRaman Tenneti //===-- Unittests for difftime --------------------------------------------===// 212204429SRaman Tenneti // 312204429SRaman Tenneti // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 412204429SRaman Tenneti // See https://llvm.org/LICENSE.txt for license information. 512204429SRaman Tenneti // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 612204429SRaman Tenneti // 712204429SRaman Tenneti //===----------------------------------------------------------------------===// 812204429SRaman Tenneti 912204429SRaman Tenneti #include "src/__support/FPUtil/FPBits.h" 1012204429SRaman Tenneti #include "src/time/difftime.h" 11*f9c2377fSMichael Jones #include "src/time/time_constants.h" 124f1fe19dSSiva Chandra Reddy #include "test/UnitTest/ErrnoSetterMatcher.h" 13af1315c2SSiva Chandra Reddy #include "test/UnitTest/Test.h" 1412204429SRaman Tenneti 1512204429SRaman Tenneti TEST(LlvmLibcDifftime, SmokeTest) { 16*f9c2377fSMichael Jones time_t t1_seconds = LIBC_NAMESPACE::time_constants::SECONDS_PER_HOUR; 1712204429SRaman Tenneti time_t t2_seconds = 0; 1812204429SRaman Tenneti 19b6bc9d72SGuillaume Chatelet LIBC_NAMESPACE::fputil::FPBits<long double> expected_fp = 20b6bc9d72SGuillaume Chatelet LIBC_NAMESPACE::fputil::FPBits<long double>(); 21b6bc9d72SGuillaume Chatelet expected_fp = LIBC_NAMESPACE::fputil::FPBits<long double>( 2212204429SRaman Tenneti static_cast<long double>(t1_seconds)); 2312204429SRaman Tenneti 24b6bc9d72SGuillaume Chatelet double result = LIBC_NAMESPACE::difftime(t1_seconds, t2_seconds); 2512204429SRaman Tenneti 26b6bc9d72SGuillaume Chatelet LIBC_NAMESPACE::fputil::FPBits<long double> actual_fp = 27b6bc9d72SGuillaume Chatelet LIBC_NAMESPACE::fputil::FPBits<long double>(); 28b6bc9d72SGuillaume Chatelet actual_fp = LIBC_NAMESPACE::fputil::FPBits<long double>( 2912204429SRaman Tenneti static_cast<long double>(result)); 3012204429SRaman Tenneti 31d02471edSGuillaume Chatelet EXPECT_EQ(actual_fp.uintval(), expected_fp.uintval()); 3211ec512fSGuillaume Chatelet EXPECT_EQ(actual_fp.is_neg(), expected_fp.is_neg()); 3312204429SRaman Tenneti EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent()); 3412204429SRaman Tenneti EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa()); 3512204429SRaman Tenneti } 36