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clang-format-20 -i $(find . \
-not \( -path "./\.*" -prune \) \
-not \( -path "./Base/*" -prune \) \
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79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
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* Copyright (c) 2022, Tim Schumacher <timschumi@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/wait.h>
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#include <unistd.h>
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static void signal_handler(int)
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{
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VERIFY_NOT_REACHED();
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}
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TEST_CASE(default_handlers)
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{
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struct sigaction current_action {};
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int rc = sigaction(SIGUSR2, nullptr, ¤t_action);
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EXPECT_EQ(rc, 0);
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EXPECT_EQ(current_action.sa_handler, SIG_DFL);
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}
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TEST_CASE(handlers_after_fork)
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{
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struct sigaction new_action {
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{ signal_handler }, 0, 0
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};
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int rc = sigaction(SIGUSR2, &new_action, nullptr);
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EXPECT_EQ(rc, 0);
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pid_t pid = fork();
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if (pid == 0) {
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struct sigaction current_action {};
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rc = sigaction(SIGUSR2, nullptr, ¤t_action);
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EXPECT_EQ(rc, 0);
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EXPECT_EQ(current_action.sa_handler, signal_handler);
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exit(rc == 0 && current_action.sa_handler == signal_handler ? EXIT_SUCCESS : EXIT_FAILURE);
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} else {
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int exit_status = 0;
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rc = waitpid(pid, &exit_status, 0);
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EXPECT_EQ(rc, pid);
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EXPECT(WIFEXITED(exit_status));
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EXPECT_EQ(WEXITSTATUS(exit_status), 0);
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}
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}
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TEST_CASE(handlers_after_exec)
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{
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struct sigaction new_action {
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{ signal_handler }, 0, 0
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};
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int rc = sigaction(SIGUSR2, &new_action, nullptr);
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EXPECT_EQ(rc, 0);
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pid_t pid = fork();
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if (pid == 0) {
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// Hide the confusing "Running 1 cases out of 3" output.
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freopen("/dev/null", "w", stdout);
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// This runs the 'default_handlers' test in this binary again, but after exec.
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execl("/proc/self/exe", "TestSigHandler", "default_handlers", nullptr);
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FAIL("Failed to exec.");
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} else {
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int exit_status = 0;
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rc = waitpid(pid, &exit_status, 0);
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EXPECT_EQ(rc, pid);
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EXPECT(WIFEXITED(exit_status));
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EXPECT_EQ(WEXITSTATUS(exit_status), 0);
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}
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}
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