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-exception 6 // 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 15 TEST(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