libc/test/src/signal/sigdelset_test.cpp

   1 //===-- Unittests for sigdelset -------------------------------------------===//
   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/raise.h"
  10 #include "src/signal/sigdelset.h"
  11 #include "src/signal/sigfillset.h"
  12 #include "src/signal/sigprocmask.h"
  13
  14 #include "test/UnitTest/ErrnoSetterMatcher.h"
  15 #include "test/UnitTest/Test.h"
  16
  17 #include <signal.h>
  18
  19 TEST(LlvmLibcSigdelset, Invalid) {
  20   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Fails;
  21   // Invalid set.
  22   EXPECT_THAT(LIBC_NAMESPACE::sigdelset(nullptr, SIGUSR1), Fails(EINVAL));
  23
  24   sigset_t set;
  25   // Valid set, invalid signum.
  26   EXPECT_THAT(LIBC_NAMESPACE::sigdelset(&set, -1), Fails(EINVAL));
  27 }
  28
  29 TEST(LlvmLibcSigdelset, UnblockOne) {
  30   using LIBC_NAMESPACE::testing::ErrnoSetterMatcher::Succeeds;
  31   sigset_t set;
  32   EXPECT_THAT(LIBC_NAMESPACE::sigfillset(&set), Succeeds());
  33   EXPECT_THAT(LIBC_NAMESPACE::sigdelset(&set, SIGUSR1), Succeeds());
  34   EXPECT_THAT(LIBC_NAMESPACE::sigprocmask(SIG_SETMASK, &set, nullptr),
  35               Succeeds());
  36   EXPECT_DEATH([] { LIBC_NAMESPACE::raise(SIGUSR1); }, WITH_SIGNAL(SIGUSR1));
  37 }