libc/test/src/signal/kill_test.cpp

   1 //===-- Unittests for kill -----------------------------------------------===//
   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/kill.h"
  10
  11 #include "include/sys/syscall.h"          // For syscall numbers.
  12 #include "src/__support/OSUtil/syscall.h" // For internal syscall function.
  13 #include "test/ErrnoSetterMatcher.h"
  14 #include "test/UnitTest/Test.h"
  15
  16 #include <errno.h>
  17 #include <signal.h>
  18
  19 using __llvm_libc::testing::ErrnoSetterMatcher::Succeeds;
  20
  21 TEST(LlvmLibcKillTest, TargetSelf) {
  22   pid_t parent_pid = __llvm_libc::syscall_impl(SYS_getpid);
  23   ASSERT_THAT(__llvm_libc::kill(parent_pid, 0), Succeeds(0));
  24
  25   EXPECT_DEATH(
  26       [] {
  27         pid_t child_pid = __llvm_libc::syscall_impl(SYS_getpid);
  28         __llvm_libc::kill(child_pid, SIGKILL);
  29       },
  30       WITH_SIGNAL(SIGKILL));
  31 }