56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//===-- Unittests for clock_getres- ---------------------------------------===//
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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 "hdr/time_macros.h"
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#include "src/time/clock_getres.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::Fails;
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using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
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TEST(LlvmLibcClockGetRes, Invalid) {
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timespec tp;
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EXPECT_THAT(LIBC_NAMESPACE::clock_getres(-1, &tp), Fails(EINVAL));
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}
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TEST(LlvmLibcClockGetRes, NullSpec) {
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EXPECT_THAT(LIBC_NAMESPACE::clock_getres(CLOCK_REALTIME, nullptr),
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Succeeds());
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}
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TEST(LlvmLibcClockGetRes, Realtime) {
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timespec tp;
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EXPECT_THAT(LIBC_NAMESPACE::clock_getres(CLOCK_REALTIME, &tp), Succeeds());
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EXPECT_GE(tp.tv_sec, static_cast<decltype(tp.tv_sec)>(0));
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EXPECT_GE(tp.tv_nsec, static_cast<decltype(tp.tv_nsec)>(0));
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}
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TEST(LlvmLibcClockGetRes, Monotonic) {
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timespec tp;
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ASSERT_THAT(LIBC_NAMESPACE::clock_getres(CLOCK_MONOTONIC, &tp), Succeeds());
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EXPECT_GE(tp.tv_sec, static_cast<decltype(tp.tv_sec)>(0));
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EXPECT_GE(tp.tv_nsec, static_cast<decltype(tp.tv_nsec)>(0));
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}
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TEST(LlvmLibcClockGetRes, ProcessCpuTime) {
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timespec tp;
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ASSERT_THAT(LIBC_NAMESPACE::clock_getres(CLOCK_PROCESS_CPUTIME_ID, &tp),
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Succeeds());
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EXPECT_GE(tp.tv_sec, static_cast<decltype(tp.tv_sec)>(0));
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EXPECT_GE(tp.tv_nsec, static_cast<decltype(tp.tv_nsec)>(0));
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}
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TEST(LlvmLibcClockGetRes, ThreadCpuTime) {
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timespec tp;
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ASSERT_THAT(LIBC_NAMESPACE::clock_getres(CLOCK_THREAD_CPUTIME_ID, &tp),
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Succeeds());
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EXPECT_GE(tp.tv_sec, static_cast<decltype(tp.tv_sec)>(0));
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EXPECT_GE(tp.tv_nsec, static_cast<decltype(tp.tv_nsec)>(0));
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}
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