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 <errno.h>
15#include <signal.h>
16
17// This tests invalid inputs and ensures errno is properly set.
18TEST(LlvmLibcSignalTest, SigaddsetInvalid) {
19 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
20 using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
21 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(nullptr, SIGSEGV), Fails(EINVAL));
22
23 sigset_t sigset;
24 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, -1), Fails(EINVAL));
25
26 // This doesn't use NSIG because LIBC_NAMESPACE::sigaddset error checking is
27 // against sizeof(sigset_t) not NSIG.
28 constexpr int bitsInSigsetT = 8 * sizeof(sigset_t);
29
30 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, bitsInSigsetT + 1),
31 Fails(EINVAL));
32 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, 0), Fails(EINVAL));
33 EXPECT_THAT(LIBC_NAMESPACE::sigaddset(&sigset, bitsInSigsetT), Succeeds());
34}
35

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