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c97f7ea23b
Since there are no real users of these functions in Serenity's userland and this is my third attempt at this... This time, the great LibTest test suite will make sure that I do it right!
152 lines
2.5 KiB
C++
152 lines
2.5 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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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 <setjmp.h>
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#include <signal.h>
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#include <string.h>
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TEST_CASE(setjmp)
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{
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jmp_buf env;
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volatile int set = 1;
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if (setjmp(env)) {
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EXPECT_EQ(set, 0);
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return;
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}
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EXPECT_EQ(set, 1);
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set = 0;
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longjmp(env, 1);
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VERIFY_NOT_REACHED();
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}
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TEST_CASE(setjmp_zero)
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{
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jmp_buf env;
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volatile int set = 1;
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switch (setjmp(env)) {
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case 0:
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EXPECT_EQ(set, 1);
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set = 0;
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longjmp(env, 0);
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VERIFY_NOT_REACHED();
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case 1:
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EXPECT_EQ(set, 0);
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break;
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default:
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VERIFY_NOT_REACHED();
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};
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}
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TEST_CASE(setjmp_value)
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{
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jmp_buf env;
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volatile int set = 1;
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switch (setjmp(env)) {
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case 0:
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EXPECT_EQ(set, 1);
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set = 0;
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longjmp(env, 0x789ABCDE);
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VERIFY_NOT_REACHED();
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case 0x789ABCDE:
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EXPECT_EQ(set, 0);
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break;
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default:
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VERIFY_NOT_REACHED();
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};
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}
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TEST_CASE(sigsetjmp)
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{
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sigjmp_buf env;
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volatile int set = 1;
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if (sigsetjmp(env, 0)) {
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EXPECT_EQ(set, 0);
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return;
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}
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EXPECT_EQ(set, 1);
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set = 0;
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siglongjmp(env, 1);
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VERIFY_NOT_REACHED();
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}
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TEST_CASE(sigsetjmp_zero)
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{
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sigjmp_buf env;
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volatile int set = 1;
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switch (sigsetjmp(env, 0)) {
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case 0:
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EXPECT_EQ(set, 1);
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set = 0;
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siglongjmp(env, 0);
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VERIFY_NOT_REACHED();
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case 1:
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EXPECT_EQ(set, 0);
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break;
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default:
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VERIFY_NOT_REACHED();
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};
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}
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TEST_CASE(sigsetjmp_value)
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{
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sigjmp_buf env;
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volatile int set = 1;
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switch (sigsetjmp(env, 0)) {
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case 0:
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EXPECT_EQ(set, 1);
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set = 0;
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siglongjmp(env, 0x789ABCDE);
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VERIFY_NOT_REACHED();
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case 0x789ABCDE:
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EXPECT_EQ(set, 0);
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break;
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default:
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VERIFY_NOT_REACHED();
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};
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}
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TEST_CASE(sigsetjmp_signal_mask)
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{
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sigjmp_buf env;
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sigset_t alternative_sigset;
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sigfillset(&alternative_sigset);
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sigset_t initial_sigset;
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sigprocmask(SIG_SETMASK, nullptr, &initial_sigset);
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EXPECT_NE(memcmp(&alternative_sigset, &initial_sigset, sizeof(sigset_t)), 0);
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if (sigsetjmp(env, 1)) {
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sigprocmask(SIG_SETMASK, nullptr, &alternative_sigset);
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EXPECT_EQ(memcmp(&alternative_sigset, &initial_sigset, sizeof(sigset_t)), 0);
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return;
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}
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sigprocmask(SIG_SETMASK, &alternative_sigset, nullptr);
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siglongjmp(env, 1);
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VERIFY_NOT_REACHED();
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}
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