| //===-- 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 __llvm_libc::testing::ErrnoSetterMatcher::Succeeds; |
| using __llvm_libc::time_utils::TimeConstants; |
| |
| TEST(LlvmLibcDifftime, SmokeTest) { |
| time_t t1_seconds = TimeConstants::SECONDS_PER_HOUR; |
| time_t t2_seconds = 0; |
| |
| __llvm_libc::fputil::FPBits<long double> expected_fp = |
| __llvm_libc::fputil::FPBits<long double>(); |
| expected_fp = __llvm_libc::fputil::FPBits<long double>( |
| static_cast<long double>(t1_seconds)); |
| |
| double result = __llvm_libc::difftime(t1_seconds, t2_seconds); |
| |
| __llvm_libc::fputil::FPBits<long double> actual_fp = |
| __llvm_libc::fputil::FPBits<long double>(); |
| actual_fp = __llvm_libc::fputil::FPBits<long double>( |
| static_cast<long double>(result)); |
| |
| EXPECT_EQ(actual_fp.bits, expected_fp.bits); |
| EXPECT_EQ(actual_fp.get_sign(), expected_fp.get_sign()); |
| EXPECT_EQ(actual_fp.get_exponent(), expected_fp.get_exponent()); |
| EXPECT_EQ(actual_fp.get_mantissa(), expected_fp.get_mantissa()); |
| } |