1//===-- Unittests for wait4 -----------------------------------------------===//
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/sys/wait/wait4.h"
10#include "test/UnitTest/ErrnoCheckingTest.h"
11#include "test/UnitTest/ErrnoSetterMatcher.h"
12#include "test/UnitTest/Test.h"
13
14#include <sys/wait.h>
15
16using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;
17using LlvmLibcWait4Test = LIBC_NAMESPACE::testing::ErrnoCheckingTest;
18
19// The test here is a simpl test for WNOHANG functionality. For a more
20// involved test, look at fork_test.
21
22TEST_F(LlvmLibcWait4Test, NoHangTest) {
23 int status;
24 ASSERT_THAT(LIBC_NAMESPACE::wait4(-1, &status, WNOHANG, nullptr),
25 Fails(ECHILD));
26}
27

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source code of libc/test/src/sys/wait/wait4_test.cpp