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 "include/errno.h"
10 #include "include/signal.h"
11 #include "src/errno/llvmlibc_errno.h"
12 #include "src/signal/sigaddset.h"
13 
14 #include "utils/UnitTest/ErrnoSetterMatcher.h"
15 #include "utils/UnitTest/Test.h"
16 
17 // This tests invalid inputs and ensures errno is properly set.
18 TEST(SignalTest, SigaddsetInvalid) {
19   using __llvm_libc::testing::ErrnoSetterMatcher::Fails;
20   using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds;
21   EXPECT_THAT(__llvm_libc::sigaddset(nullptr, SIGSEGV), Fails(EINVAL));
22 
23   sigset_t sigset;
24   EXPECT_THAT(__llvm_libc::sigaddset(&sigset, -1), Fails(EINVAL));
25 
26   // This doesn't use NSIG because __llvm_libc::sigaddset error checking is
27   // against sizeof(sigset_t) not NSIG.
28   constexpr int bitsInSigsetT = 8 * sizeof(sigset_t);
29 
30   EXPECT_THAT(__llvm_libc::sigaddset(&sigset, bitsInSigsetT + 1),
31               Fails(EINVAL));
32   EXPECT_THAT(__llvm_libc::sigaddset(&sigset, 0), Fails(EINVAL));
33   EXPECT_THAT(__llvm_libc::sigaddset(&sigset, bitsInSigsetT), Succeeds());
34 }
35