| //===-- Unittests for clock_gettime ---------------------------------------===// |
| // |
| // 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/time/clock_gettime.h" |
| #include "test/UnitTest/Test.h" |
| |
| #include <time.h> |
| |
| TEST(LlvmLibcClockGetTime, RealTime) { |
| struct timespec tp; |
| int result; |
| result = LIBC_NAMESPACE::clock_gettime(CLOCK_REALTIME, &tp); |
| ASSERT_EQ(result, 0); |
| ASSERT_GT(tp.tv_sec, time_t(0)); |
| } |
| |
| #ifdef CLOCK_MONOTONIC |
| TEST(LlvmLibcClockGetTime, MonotonicTime) { |
| struct timespec tp1, tp2; |
| int result; |
| result = LIBC_NAMESPACE::clock_gettime(CLOCK_MONOTONIC, &tp1); |
| ASSERT_EQ(result, 0); |
| ASSERT_GT(tp1.tv_sec, time_t(0)); |
| result = LIBC_NAMESPACE::clock_gettime(CLOCK_MONOTONIC, &tp2); |
| ASSERT_EQ(result, 0); |
| ASSERT_GE(tp2.tv_sec, tp1.tv_sec); // The monotonic clock should increase. |
| if (tp2.tv_sec == tp1.tv_sec) { |
| ASSERT_GE(tp2.tv_nsec, tp1.tv_nsec); |
| } |
| } |
| #endif // CLOCK_MONOTONIC |