1//===-- Unittests for sigaddset -------------------------------------------===//
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/signal/sigaddset.h"
10
11#include "test/UnitTest/ErrnoSetterMatcher.h"
12#include "test/UnitTest/Test.h"
13
14#include <signal.h>
15
16// This tests invalid inputs and ensures errno is properly set.
17TEST(LlvmLibcSignalTest, SigaddsetInvalid) {
18 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
19 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
20 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(nullptr, SIGSEGV), Fails(EINVAL));
21
22 sigset_t sigset;
23 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, -1), Fails(EINVAL));
24
25 // This doesn't use NSIG because LIBC_NAMESPACE::sigaddset error checking is
26 // against sizeof(sigset_t) not NSIG.
27 constexpr int bitsInSigsetT = 8 * sizeof(sigset_t);
28
29 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, bitsInSigsetT + 1),
30 Fails(EINVAL));
31 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, 0), Fails(EINVAL));
32 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, bitsInSigsetT), Succeeds());
33}
34

source code of libc/test/src/signal/sigaddset_test.cpp