ladybird/Tests/LibC/TestLibCSetjmp.cpp

152 lines
2.5 KiB
C++
Raw Normal View History

/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <setjmp.h>
#include <signal.h>
#include <string.h>
TEST_CASE(setjmp)
{
jmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
if (setjmp(env)) {
EXPECT_EQ(set, 0);
return;
}
EXPECT_EQ(set, 1);
set = 0;
longjmp(env, 1);
VERIFY_NOT_REACHED();
}
TEST_CASE(setjmp_zero)
{
jmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
switch (setjmp(env)) {
case 0:
EXPECT_EQ(set, 1);
set = 0;
longjmp(env, 0);
VERIFY_NOT_REACHED();
case 1:
EXPECT_EQ(set, 0);
break;
default:
VERIFY_NOT_REACHED();
};
}
TEST_CASE(setjmp_value)
{
jmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
switch (setjmp(env)) {
case 0:
EXPECT_EQ(set, 1);
set = 0;
longjmp(env, 0x789ABCDE);
VERIFY_NOT_REACHED();
case 0x789ABCDE:
EXPECT_EQ(set, 0);
break;
default:
VERIFY_NOT_REACHED();
};
}
TEST_CASE(sigsetjmp)
{
sigjmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
if (sigsetjmp(env, 0)) {
EXPECT_EQ(set, 0);
return;
}
EXPECT_EQ(set, 1);
set = 0;
siglongjmp(env, 1);
VERIFY_NOT_REACHED();
}
TEST_CASE(sigsetjmp_zero)
{
sigjmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
switch (sigsetjmp(env, 0)) {
case 0:
EXPECT_EQ(set, 1);
set = 0;
siglongjmp(env, 0);
VERIFY_NOT_REACHED();
case 1:
EXPECT_EQ(set, 0);
break;
default:
VERIFY_NOT_REACHED();
};
}
TEST_CASE(sigsetjmp_value)
{
sigjmp_buf env;
2022-04-01 17:58:27 +00:00
int volatile set = 1;
switch (sigsetjmp(env, 0)) {
case 0:
EXPECT_EQ(set, 1);
set = 0;
siglongjmp(env, 0x789ABCDE);
VERIFY_NOT_REACHED();
case 0x789ABCDE:
EXPECT_EQ(set, 0);
break;
default:
VERIFY_NOT_REACHED();
};
}
TEST_CASE(sigsetjmp_signal_mask)
{
sigjmp_buf env;
sigset_t alternative_sigset;
sigfillset(&alternative_sigset);
sigset_t initial_sigset;
sigprocmask(SIG_SETMASK, nullptr, &initial_sigset);
EXPECT_NE(memcmp(&alternative_sigset, &initial_sigset, sizeof(sigset_t)), 0);
if (sigsetjmp(env, 1)) {
sigprocmask(SIG_SETMASK, nullptr, &alternative_sigset);
EXPECT_EQ(memcmp(&alternative_sigset, &initial_sigset, sizeof(sigset_t)), 0);
return;
}
sigprocmask(SIG_SETMASK, &alternative_sigset, nullptr);
siglongjmp(env, 1);
VERIFY_NOT_REACHED();
}